Home
Search results “Oracle sql select from dual”
Oracle Interview Questions: Dual table in Oracle
 
08:10
This video is the 2nd video in the video series Oracle Interview questions.It explains dual table in oracle along with the advantages that it offers. Below tutorial explains how you can generate test data in oracle using oracle table and hierarchical queries. https://www.youtube.com/watch?v=Lf8m9lXNPnc&t=25s
Views: 1731 Tech Coach
Oracle Interview question : what is dual table in oracle
 
05:14
Oracle Interview question : what is dual table in oracle Oracle dual table is automatically created as part of installation in SYS schema. Dual table has one column called DUMMY of VARCHAR2(1) datatype. This table is useful for computing a constant expression with select statement List of all the SQL and PLSQL interview questions https://easy-learning-tech.blogspot.com/p/oracle-sql-plsql-interview-questions.html
Views: 156 Siva Academy
The DUAL TABLE in Oracle Database
 
01:56
The DUAL TABLE in Oracle Database
Views: 1365 Abe Samir's Academy
Oracle Sql: Lecture 49: DUAL What is this
 
02:38
DUAL What is this https://www.youtube.com/channel/UCnBpiBIOtRgMsk4G7Ri1jbQ
Views: 1777 Oracle SQL
DUAL Table In Oracle | Oracle Tutorials for Beginners
 
02:51
DUAL Table In Oracle Oracle Tutorials for Beginners Purpose of Dual Table In Oracle Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle plsql Tutorials for Beginners Dual Table Dual Table in Oracle What is Dual Table In Oracle What is the Purpose of Dual table in oracle? What is meat by Dual table in Oracle Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners Oracle Tutorials for Beginners Oracle pl/sql Tutorials for Beginners
Views: 519 Oracle PL/SQL World
SQL, Oracle, Dual table, 3e62
 
07:37
Understanding Dual table. Most SQL videos are available on www.my-uni.net also. Feel free to visit
Views: 2706 hammadshams
Oracle SQL Tutorial 9 - Intro to Queries
 
04:55
This video is for beginners who have never worked with SQL Developer, and we are going to teach how to begin writing queries. So the queries we are going to start with are queries when we give the database an expression and it will return back some kind of value. The most common keyword you are going to need to know for Oracle is SELECT. SELECT is the command we use to get data from the database. Even though we have not really put any data in our database, we can still use the SELECT statement to get data. That's because the database is capable of doing more than just creating tables and retrieving data from tables. So our first goal is to essentially write a Hello World, which just displays the text hello world to us. A good place to start is with: SELECT 'Hello World' This would actually work for many database management systems, but when you run it you will get an error. This actually doesn't work with Oracle, it will tell us we always need the FROM keyword. To get around this, there is a magical table called DUAL. We can put anything we want to SELECT and then say FROM DUAL and it will work. SELECT 'Hello World' FROM DUAL We can also do math: SELECT 1+1 FROM DUAL And we can run even run functions: SELECT SYSTIMESTAMP FROM DUAL To put all of this together, you can grab all of this data at the same time using commas to separate different columns from our generated table: SELECT 'Hello World', 1+1, SYSTIMESTAMP FROM DUAL Support me on Patreon: http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 23479 Caleb Curry
Oracle  dual table importance
 
02:28
This video explains about dual table and its importance.Hands on with few queries
Views: 65 Kishore Desetti
Hierarchical Queries in Oracle/ عربي
 
16:39
start with & connect by prior Hierarchical Queries in Oracle ملاحظه : اشارة الاكبر غير مسموحة في الوصف --1--- select employee_id, first_name,last_name,manager_id from employees; --2--- select employee_id, first_name,last_name,manager_id from employees where manager_id=100; --3--- select employee_id, first_name,last_name,manager_id from employees where manager_id=101; --4--- select employee_id, first_name,last_name,manager_id from employees where manager_id=108; --5--- select employee_id, first_name,last_name,manager_id from employees where manager_id in (109,110,111,112,113) --6--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --7--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=113 connect by prior manager_id =employee_id --buttom up --8--- --let us take this and try to do nice thing --Neena Kochhar work for Steven King select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --9--- select first_name||' '||last_name ||' work for '|| (select first_name||' '||last_name from employees e where e.employee_id=a.manager_id ) from employees a start with employee_id=100 connect by prior employee_id=manager_id --top down --10--- select first_name||' '||last_name ||' work for '|| prior first_name||' '||prior last_name from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --11--- select level,employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --1 mean root --2 mean child of root --3 mean child of child , and so on --12--- select level,employee_id, first_name,last_name,manager_id from employees where level=2 start with employee_id=100 connect by prior employee_id=manager_id --13--- select lpad ('khaled',10, 0) from dual --14--- select level, case when level=1 then first_name||' '||last_name when level Greater sign 1 then lpad (first_name||' '||last_name,length(first_name||' '||last_name)+level-1, '-') end tree from employees start with employee_id=100 connect by prior employee_id=manager_id --top down ---------------------- --15--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --16--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by manager_id= prior employee_id --top down
Views: 2197 khaled alkhudari
Analytical Functions in oracle explained with real examples
 
25:24
This video explains analytical functions and how they are implemented in real projects. Analytical functions are somewhat similar to aggregate functions,but they offer much more. Why use analytical function ? They allow you to write fast and concise queries which otherwise will involve self join and long processing times They allow you to perform aggregate functions independently on sets of partitions. You can access values from previous rows in current row and you can restrict the window on which you want to apply this analytical function. I have given additional practice exercises along with the dataset so that you can comfortably work with analytical functions. You can find the sample problems along with dataset in the below link. http://www.internshipsfromhome.com/oracle-analytical-functions-ddl-and-dml/
Views: 13830 Tech Coach
SQL, Oracle, Understanding SELECT statement, 1e63
 
08:48
The video will describe Select statement.
Views: 1350 hammadshams
106/125 Oracle PLSQL: PLSQL Compiler / dbms_warning
 
11:07
select name,value from v$parameter where name='plsql_warnings' --1-- --Modify the current session's warning settings /* dbms_warning.add_warning_setting_cat( warning_category IN VARCHAR2, warning_value IN VARCHAR2, scope IN VARCHAR2) */ --now we can modify the setting begin dbms_warning.add_warning_setting_cat('SEVERE', 'ENABLE', 'SESSION'); end; --we can check the new value by select name,value from v$parameter where name='plsql_warnings' --or SELECT dbms_warning.get_warning_setting_string FROM dual; -------------------- --2 /* dbms_warning.add_warning_setting_num( warning_number IN PLS_INTEGER, warning_value IN VARCHAR2, scope IN VARCHAR2); */ EXEC dbms_warning.add_warning_setting_num(6002, 'DISABLE', 'SESSION'); SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; EXEC dbms_warning.add_warning_setting_num(6002, 'ENABLE', 'SESSION'); SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; ----------------------------- --3 /* dbms_warning.set_warning_setting_string( value IN VARCHAR2, scope IN VARCHAR2); */ exec dbms_warning.set_warning_setting_string('ENABLE:ALL', 'SESSION'); SELECT dbms_warning.get_warning_setting_string FROM dual; -------------------- --4 /* dbms_warning.get_category(warning_number IN PLS_INTEGER) RETURN VARCHAR2 */ -- severe SELECT dbms_warning.get_category(5000) FROM dual; -- informational SELECT dbms_warning.get_category(6002) FROM dual; -- performance SELECT dbms_warning.get_category(7203) FROM dual; ------------------------------------------ --5 /* dbms_warning.get_warning_setting_cat(warning_category IN VARCHAR2) RETURN VARCHAR2 */ SELECT dbms_warning.get_warning_setting_cat('SEVERE') FROM dual; SELECT dbms_warning.get_warning_setting_cat('INFORMATIONAL') FROM dual; SELECT dbms_warning.get_warning_setting_cat('PERFORMANCE') FROM dual; ------------ --6 --dbms_warning.get_warning_setting_num(warning_number IN PLS_INTEGER) --RETURN VARCHAR2 SELECT dbms_warning.get_warning_setting_num(5000) FROM dual; SELECT dbms_warning.get_warning_setting_num(6002) FROM dual; SELECT dbms_warning.get_warning_setting_num(7203) FROM dual;
Views: 281 khaled alkhudari
Oracle Tutorial || Oracle|Adv Sql | Special Characters DUAL by basha
 
30:44
DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
What is the Dual Table in Oracle Database? A Video Quiz
 
00:31
Dual is a special table in Oracle Database. But how much do you know about it? Find out in this video quiz! Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 759 The Magic of SQL
Oracle tutorial : Conversion Functions In Oracle
 
09:30
Oracle tutorial : Conversion Functions In Oracle. oracle tutorial for beginners sql convert This Oracle tutorial video will show how to use conversion function in sql oracle TO_CHAR() , TO_DATE() , TO_NUMBER() these are mostly used functions. Conversions functions are used to convert one data type to another type. 1)To_CHAR ( number | date, [fmt], [nlsparams] ) The TO_CHAR function converts the number or date to VARCHAR2 data type in the specified format (fmt). 2)TO_NUMBER( char, [‘fmt’] ) The TO_NUMBER function converts the characters to a number format. 3)TO_DATE( char, [‘fmt’] ) The TO_DATE function converts the characters to a date data type. — TO_CHAR() fmYYYY YYYY/MM/DD SELECT TO_CHAR(SYSDATE, ‘YYYY/MM/DD’) FROM DUAL; — SO USING TO_CHAR U CAN GET FORMATE OF DATE ACCORDING TO UR REQURMENTS —- $99,999 99.99 99,00 SELECT TO_CHAR(487, ‘$99,0’) FROM DUAL; — U CAN GET DATA IN CURRENCY FORMAT —- TO_NUMBER() SELECT TO_NUMBER(‘1745′,’99999’) FROM DUAL; SELECT TO_NUMBER(‘1,47,982′,’9,99,999′) FROM DUAL; —- TO_DATE() — THIS CONVERT VARCHAR DATE TO PROPER DATE FORMAT SELECT TO_DATE(’30-JAN-1995′,’DD-MON-RRRR’) FROM DUAL; For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond
Views: 3661 Tech Query Pond
ORACLE  SQL Coding Lesson 3 in Jinghpaw Language - More Character and Numeric Functions
 
44:14
SQL Coding Lesson 3 in Jinghpaw Language - Lessons Continued. Please watch in HD mode for better video quality. --numeric functions SELECT ABS(12) FROM DUAL; SELECT ABS(-12.65) FROM DUAL; SELECT CEIL(48.99) FROM DUAL; SELECT CEIL(48.11) FROM DUAL; SELECT FLOOR(49.99) FROM DUAL; SELECT FLOOR(49.11) FROM DUAL; SELECT ROUND(49.11321,2) FROM DUAL; SELECT ROUND(49.11321,3) FROM DUAL; SELECT POWER(4,2) FROM DUAL; SELECT POWER(3,4) FROM DUAL; SELECT MOD(4,2) FROM DUAL; SELECT MOD(5051,100) FROM DUAL; select greatest(34,567,290,86) from dual; select least(34,567,290,86) from dual; select INSTR('Tech on the net', 'e') from dual; select INSTR('Tech on the net', 'e', 1, 1) from dual; select TRIM(' tech ') from dual; select TRIM(' ' FROM ' tech ') from dual; select TRIM(LEADING '0' FROM '000123') from dual; select TRIM(BOTH '1' FROM '123Tech111') from dual; select GREATEST(2, 5, 12, 3) from dual; select GREATEST('2', '5', '12', '3') from dual; select GREATEST('apples', 'oranges', 'bananas') from dual; select LEAST('2', '5', '12', '3') from dual; --null select (9000*null) from dual; select (null/9000) from dual; select (9000-null) from dual; select (9000+null) from dual; select distinct department_id from employees where commission_pct is not null; select last_name,job_id,coalesce(department_id,0) as dept,salary,commission_pct,coalesce(commission_pct,0) as comm_not_null, salary*commission_pct as multiplied_by_null, salary*coalesce(commission_pct,0) as commission_amt, salary+ (salary*coalesce(commission_pct,0)) as salary_plus_comm from employees where commission_pct is not null or department_id=20 order by dept; desc locations; select coalesce(postal_code,city,STATE_PROVINCE,COUNTRY_ID) as new_address,postal_code,city,STATE_PROVINCE,COUNTRY_ID from locations where COUNTRY_ID in ('JP','IT','UK'); --add more departments SELECT first_name ||'.'||last_name as "Employee Name",department_id, CASE when department_id in (10) THEN 'Accounting' WHEN department_id in (20) THEN 'Research' -- WHEN commission_pct is not null THEN 'Sales' WHEN department_id in (30) THEN 'Operations' ELSE 'Unknown' END department FROM employees ORDER BY first_name ||'.'||last_name ; SELECT last_name, department_id, DECODE( department_id ,10 ,'Accounting' ,20 ,'Research' ,30 ,'Sales' ,40 ,'Operations' ,'Unknown') department FROM employees ORDER BY last_name; select country_id,decode(country_id,'BR','Southern Hemisphere', 'AU','Southern Hemisphere', 'Northen Hemisphere') hemisphere from locations order by hemisphere; --set define on; select 'Coke & Popcorn' from dual; --upper,lower,coalesce and null select upper('sql') from dual; select lower('SQL') from dual; select initcap('sql') from dual; Select * from employees where email like '%SON'; Select * from employees where lower(email) like '%son'; Select * from employees where upper(last_name) like '%SON'; Select * from employees where lower(job_id) ='pu_clerk'; Select * from employees where initcap(email) ='Sbaida'; select * from employees where substr(phone_number,1,3) eq '515'; select * from employees where substr(phone_number,1,3) ne '515'; select * from employees where last_name gt 'King'; select * from employees where hire_date lt '01-JAN-1992'; --special character select * from jobs where job_id like 'SA\_%' escape '\'; select * from jobs where job_id like 'SA$_%' escape '$'; --translate, replace --( string1, string_to_replace, replacement_string ) select TRANSLATE('1tech23', '123', '456') from dual; select phone_number,translate(phone_number,'.','-') as modified_phnum from employees where rownum le 10; select job_id,translate(job_id,'_','&') as modified_phnum from employees where rownum le 10; select phone_number,translate(phone_number,'515','415') as modified_phnum from employees where rownum le 5; select phone_number,REPLACE(phone_number,'515','415') as modified_phnum from employees where rownum le 5; select REPLACE('123123tech', '123') from dual; select REPLACE('123tech123', '123') from dual; select REPLACE('222tech', '2', '3') from dual;
Views: 42 Hkau Doi
LENGTH Function in SQL Query
 
02:33
Length(): This function is used to calculate the length of a string or column in query. Here space is also treated as one more character. so the count is 10. Queries used in Video: select ename,length(ename) from emp; select length('oracle num') from dual; Thanks for watching..:)
Views: 2029 WingsOfTechnology
SQL DUAL
 
07:23
Yazılışı: Select * From Dual;
Views: 280 SQL Pl/SQL
Oracle Database11g tutorials 13 || SQL substr function / SQL substring function
 
06:34
link of SQL substr blog : http://www.rebellionrider.com/SQL-substr-function.htm SQL substr function SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ---------------------------------------------------------------------------- As the name suggests SQL Substr function will return substring from a given source string. Let's see the Syntax Substr (source_string, start_pos, Substr_length) As we can see SQL substr function takes 3 parameters. First one is Source string from which you want to extract the segment. Second parameter is Starting position for sub string from the Source string. And the third parameter is Substr_length which is the length for the substring. First two parameters are mandatory to specify while third one is optional. So we can say. SQL Substr function will return a sub string of a specified length from the source string beginning at a given position. First parameter source string can be of any data type CHAR, VARCHAR2, NCHAR, NVARCHAR2, CLOB, or NCLOB whereas both start_pos, Substr_length parameters must be number data type. The returning result of SQL Substr function is of same data type of source string. Let's see an example of SQL Substr function. SELECT substr('www.RebellionRider.com',5,14) FROM dual; Here in this query url of my website www.RebellionRider.com is our source string with the total length of 22 characters, Now, I want to extract the name of my website that is, RebellionRider. So if you count the total length of the name of the website, it is 14. That's why I have specified 14 as my third parameter of SQL Substr function which is substr_length. Also the name of the website RebellionRider is starting from 5th position therefore I have specified 5 at second parameter of SQL substr function which is strt_pos or starting position. Execute it. Here is our result RebellionRider When starting position is larger than the length of source string. In this case SQL Substr function will return NULL as a result. Let's do an example. SELECT substr('www.RebellionRider.com',23,14) FROM dual; As you can see here I have specified 23 at starting position and the total length of our source string is 22 characters Let's execute And the result is Null. Second scenario When the Substr_length is greater than source string In this case the segment return is the substring from starting position to the end of the string. For example SELECT substr('www.RebellionRider.com',5,23) FROM dual; Our starting position is at 5 means at the first R of RebellionRider and length of substring is set to 23 which is greater than the length of source string that is 22. Execute. As you can see we get a substring from first R of RebellionRider till the end of the source String. Third scenario When you supply numeric or arithmetic expression or a DATE instead of character as Source string to SQL Substr function In this scenario If you have supplied a numeric string instead of character as source string, the oracle engine casts them as a character when they occur as parameter to SQL Substr function. And if you have supplied Arithmetic expression or a DATE then The Oracle engine first solves or evaluates the Arithmetic expression or the DATE Then casts them as a character. Means if you have arithmetic expression in your source string then oracle will first solve it and then change or say cast the value of its result into character. Let's see some example. SELECT substr(50000-7,2,4) FROM dual; Oracle first evaluates the arithmetic expression that is 50000-7 equals to 49993. And then oracle engine casts this result 49993 into a character string. Means 49993 will be a 5 characters string. Starting position of substring is 2, that means from the first 9 of 49993 We specified the length of substring is 4 so we must get 9993 as our result. Let's check execute
Views: 77898 Manish Sharma
Oracle SQL Tutorial 10 - Whitespace, Case Sensitivity, and Comments
 
07:48
SELECT "Hello World" FROM DUAL The first thing you should know about writing queries is that this SQL is not whitespace sensitive. That means we can space this out however we wish. The only requirement is that you do not separate keywords out with spaces. They must be as one entity. Another gotcha is that when you are inside of quotes, whitespace becomes very important. That means if inside of a string you put a character and then 10 spaces, every single one of those spaces is going to part of that string: SELECT "Hello World" FROM DUAL The next thing you should notice is the capitalization. When we type SQL, by convention we capitalize all keywords. I personally really like this because you can easily see the difference between keywords and words that we created or use. But obviously we could capitalize the letters in the quotes. Keep in mind that this is a convention, meaning you do not have to follow this. Oracle is also case insensitive in that SELECT and select both do the same thing. Strings, once again, care about casing. Take this, for example: SELECT 'true' FROM DUALWHERE 'Hello' = 'Hello' And compare the results to this: SELECT 'true' FROM DUALWHERE 'Hello' = 'hello' Only the first one outputs the value true. Once we get into creating database objects such as tables with columns, those are not case sensitive either. That means instead of selecting from DUAL, you can select from DuAl Finally, I shall introduce you to comments. Comments allow you to tell the database engine that you want it to ignore a certain part of your code and not execute it. This is helpful if you want to document your code. It is also useful if you want to have multiple SQL statements open in one tab, but don't want to hover over the one you want to execute. You can comment out the ones you are not using and uncomment them when you are done. Using – will comment out the rest of the line, Using /* */ will comment everything between. This can even be used over multiple lines. But now, let's move onto the important stuff… CREATING TABLES!!!!! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 14445 Caleb Curry
ORACLE: SQL- Kỹ thuật query ra nhiều dòng  từ table DUAL.
 
03:22
Với một câu query, làm thế nào để in ra kết quả như bên dưới (20 dòng) ? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Views: 166 Database Tutorials
What is dual in Oracle
 
01:58
What is dual in Oracle - Find out more explanation for : 'What is dual in Oracle' only from this channel. Information Source: google
Views: 7 atunakai8b
Random number &  Random String in Oracle/ عربي
 
06:44
oracle sql Random number & Random String in Oracle select dbms_random.random from dual; select dbms_random.value from dual; select dbms_random.value(1,10) from dual; select round(dbms_random.value(1,10) ) from dual; /* 'u', 'U' - returning string in uppercase alpha characters 'l', 'L' - returning string in lowercase alpha characters 'a', 'A' - returning string in mixed case alpha characters 'x', 'X' - returning string in uppercase alpha-numeric characters 'p', 'P' - returning string in any printable characters. */ select dbms_random.STRING('L',15) from dual; select dbms_random.STRING('U',10) from dual; select dbms_random.STRING('A',10) from dual; select dbms_random.STRING('X',20) from dual; select dbms_random.STRING('P',20) from dual;
Views: 686 khaled alkhudari
Oracle SQL Developer Tutorial For Beginners   88   Dual Examples
 
00:58
Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 628 Sam Dhanasekaran
GLOBAL TEMPORARY TABLE (GTT) IN ORACLE SQL WITH EXAMPLES
 
13:33
This video demonstrates the usage and working of GTT in oracle SQL. The video shows how internally oracle works with GTT, and also explains the working of ON COMMIT DELETE ROWS and ON COMMIT PRESERVER ROWS in oracle with easy examples.
Views: 7885 Kishan Mashru
CONCAT & PIPE "||" Operators in Oracle | Oracle Tutorials for Beginners
 
07:13
CONCAT & PIPE "||" Operators in Oracle | Oracle Tutorials for Beginners Oracle Tutorials for Beginners CONCAT Operators in Oracle SQL CONCAT Operators in Oracle Database CONCAT Operators in Oracle SQL Database || Operator in Oracle concatenate in oracle sql developer oracle concatenate columns with space oracle concatenate rows into string oracle concatenate string and number oracle concatenate all columns into string oracle concatenate columns with comma using concat function in oracle concatenate function in oracle 11g concatenate in oracle sql developer oracle sql concatenate column values concatenation operator in oracle concatenation operator in sql server oracle concatenate columns with space oracle concatenate string and number oracle concatenate rows into string concatenate in oracle sql query concatenate sql query concat sql server 2008 sql concatenate columns concatenate sql oracle sql concatenate rows mysql concatenate string sql concatenate string and int sql concatenate column values
Views: 449 Oracle PL/SQL World
Oracle Sql Step by Step Approach (065 dual what is this)
 
02:38
Oracle Sql Step by Step Approach (065 dual what is this) Discover essential SQL skills necessary to transform you into SQL developer which can earn you $70k+ in the IT Industry Learn to become a fee-earning SQL developer in just seven weeks. This fast, easy and effective course will take you from zero sql writing skills to being able to make money as a SQL developer. This one-stop-shot-style SQL course will teach you everything you need to know about SQL, from learning various database concepts to writing SQL to interact with the database. Throughout this SQL course I will be using the below methodology to make you think and help in forming the SQL statement. Like,Comment,Share
Oracle Database11g tutorials 11: SQL case manipulation function in Oracle Database
 
04:38
Part 2 SQL functions- character function -case manipulation functions Previous Video Link :: http://youtu.be/5rx8Q4x4-qI Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ------------------------------------------------------------------------------------- As discuss in last video we have 3 case manipulation functions. In case you miss the SQL functions intro video you can find the link in the description below. First let's see what these functions are. Upper (): This function takes a parameter converts it into uppercase and returns the new string. Initcap (): this function also takes parameter and converts the initial letter of or parameter into uppercase and returns the new string. Lower (): This function takes a parameter converts it into lowercase and returns the new string. Ok let's do some practical For this practical we will be using 2 tables First is dual table Which is a dummy table provided by oracle? And I have created another table again by the name of example. This will be our second table. Let's start with SQL function upper ( ); SELECT upper('hello world') FROM dual; As you can see I have used "hello world" completely in lowercase as parameter to SQL upper function. Execute it. Here, our result has given us a completely new hello world string which is in uppercase. Similarly you can also use SQL upper function to perform other DML Let's try This time we will work on our second table EXAMPLE; insert into example values (upper('manish')); first parentheses for values and second for SQL function upper. Let's check the result. As you can see here inserted value is in upper case. Lets compare it with simple insert query Insert into example values ('manish'); Execute it, i think now it's clear that when we perform simple insert DML the inserted value will be the same you provide. Similarly let's try SQL function initcap(); SELECT initcap('hello world') FROM dual; As you see here in result the initial letters of string hello world are in uppercase. Let's do the insert query insert into example values (initcap('hello world')); initial letters of string also are in uppercase. Let's try SQL function lower(); This time we have to write our hello world in all caps. SELECT lower('HELLO WORLD') FROM dual; Execute String totally in lower case. Similarly you can user SQL function lower in other DML like insert and all.
Views: 83817 Manish Sharma
Oracle SQL Developer Tutorial For Beginners   87   Dual
 
01:41
Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 510 Sam Dhanasekaran
006 Connect By clause
 
05:09
Views: 3960 Kartik Mundhra
Oracle SQL Interview Questions : Delete duplicate records
 
04:48
This is the 1st video of the video series Oracle Interview questions. The video Demonstrates how to delete duplicate records in Oracle. I will cover all the major common questions asked in SQL and PL/SQL interviews as a part of this series. Please do contribute questions that you have come across in any of your interviews
Views: 1933 Tech Coach
04 Oracle Database Tutorial  - SELECT Operators in Oracle
 
30:27
This video tutorial on Oracle provides detailed information on Arithmetic Operators, Concatenation Operator, Character Functions, Conversion Functions, DateTime Functions, Numeric Functions, Truncating Numeric Data,DUAL Table, DESCRIBE TABLE. You can visit Oracle Database related videos here : https://www.youtube.com/watch?v=cDqlT7O8H0Q&list=PLRt-r4QiDOMfMmVU-8145pLcBxIdvAt8f&index=1 Website: http://guru4technoworld.wix.com/technoguru Facebook : https://www.facebook.com/a2zoftech/ Blog: http://dronatechnoworld.blogspot.com
Views: 33 Sandip M
Hierarchical Queries: Databases for Developers #16
 
09:38
Often data contains a parent-child relationship between rows in the same table. For example, company org charts and family trees. You can use the power of SQL to traverse these hierarchical relationships. There are two ways to do this in Oracle Database: - Connect By - Recursive With Watch this video to learn about data trees and find out how these work! Further reading: Hierarchical queries in the docs: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Hierarchical-Queries.html#GUID-0118DF1D-B9A9-41EB-8556-C6E7D6A5A84E Recursive subquery factoring in 11.2: https://oracle-base.com/articles/11g/recursive-subquery-factoring-11gr2 Take the course! https://devgym.oracle.com/pls/apex/dg/class/databases-for-developers-next-level.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1617 The Magic of SQL
Oracle Rowid, RowNum and row_number
 
06:44
Oracle Rowid, RowNum and row_number... Explained in detailed...
Views: 5413 CONNECT TO LEARN
Oracle Sql SELECT statement & Drl command ,where clause, Arithmetic Expressions
 
14:46
SQL Where clause with example on Oracle 11g Database -Oracle Sql Arabic Course Basic SELECT statement & Arithmetic Expressions اوراكل ديفيلوبر SQL tutorial 49: CASE - Simple Case Expression in Oracle Database The WHERE Clause: Case Sensitivity and Collations ORACLE 11g Course Details - Using TOAD (Tool For Oracle Application Development) in training ... Clause; Comparison and conditional operations; Arithmetic and logical operations ... Using group by and having clause of DRL statement ... Understanding the practical approach to sub queries/nested select/sub select/inner ... SQL Editor commands Oracle 12C /Oracle12C-Wilson.asp About SQL&SQL*PLUS; Constraints; Normalization and De-Normalization; ER Diagrams ... Working with DML, DRL Commands; Operators Support. DML-Insert, update, delete; DQL-SELECT Statements using WHERE clause; Comparison and Conditional Operators; Arithmetic and Logical Operators; Set Operators (UNION, ... [PDF]Oracle SQL(Structured Query Language) www.isashitsolution.com/pdf/ORACLE.pdf. Oracle. SQL(Structured Query Language) ... Working with DML, DRL Commands. • Operators Support. Build In Function. • Arithmetic Functions, Character Functions, ... Grouping the Result of a Query. • Using Group by and Having Clause of DRL. Statement ... Using VIEWS for DML Operations. SQL select statement and functions - Nov 20, 2013 - SQL Statements ... SQL as the standard language Oracle SQL complies with ... SQL Statements DRL - Retrieves data from the database DML ... If any column value in an arithmetic expression is null, the result is null. .... The DUAL table is generally used for SELECT clause syntax ... [PDF]SQL Basics & PL-SQL - SQL School sqlschool.com/downloads/PLSQL-Training-SQLSchool.pdf SQL Basics & Oracle PL/SQL Developer Training. All Our Training ... COMMANDS. ✓ Structured Query Language (SQL) Basics ... Returning into clause, Bulk Collect. ✓ For All ... Recycle Bin, Regular Expressions in PLSQL ... DML Command DRL Commands Operators. ✓ INSERT ... Arithmetic and Logical Operators. Operators in SQL.... - PL/SQL-Developer plsql/2011/10/operators-in-sql.html Oct 26, 2011 - If we select the data using select statement from dual ... Arithmetic Operators are used to perform arithmetic operations on numeric ... This is the syntax for using the IN operator. ... Unlike In condition where we will match selective multiple values, we will match .... SQL Statements Part3 (DRL,TCL and DCL). learn oracle - Curly Brackets learn-oracle/ Oracle Pre Defined Data types; DDL Commands; Create, Alter (add, modify, rename, ... Arithmetic Functions, Character Functions, Date Functions, Conversion ... a Query. Using Group by and Having Clause of DRL Statement; Using Order by clause ... Understanding the practical approach to Sub Queries/Nested Select/Sub ... Oracle PL-SQL - SequelGate oracle-plsql-training.html Arithmetic Functions; Character Functions; Date functions; Conversion Functions ... Using Group by and Having Clause of DRL Statement; Using Order by clause ... CASE expression of Select Command, Temporary Tables/Global Tables; New ... : DRL, DDL, DML, TCL and DCL commands /2014/12/drl-ddl-dml-tcl-and-dcl-commands.html DRL, DDL, DML, TCL and DCL commands. DRL (Data Retrieval Language):. Select. DDL (Data Definition Language):. Create. Alter. Drop. Truncate. Missing: expressions SQL Count - Wikitechy https://www.wikitechy.com/tutorials/sql/sql-count Tags : sql tutorial , pl sql tutorial , mysql tutorial , oracle tutorial , learn sql , sql server tutorial. Syntax ... expression can be a column name, an arithmetic operation, or a star . ... In addition to the COUNT function in the SELECT statement. In those cases, these columns need to be part of the GROUP BY clause as well
Views: 35 Muo sigma classes
Indexing in Oracle :B-Tree,Bitmap Indexing
 
25:48
This Video is the 1st tutorial in the video series Indexing in Oracle , The video series explains in detail, What are indexes?It's types, what index should be used in which scenario and other important thing in basic terminology. Note :You may want to watch the video with a higher playback speed(1.25 if it suits you more)
Views: 10205 Tech Coach
How to insert multiple rows in just one query ?
 
01:53
This works in Oracle: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual The thing to remember here is to use the from dual statement.
Views: 106 Houssine Formation
Oracle Part 17 Select in Stored Procedure, Exceptions
 
22:21
Select into statement in SP, exception handler in
Views: 6659 Free OpenMentor
Função Oracle Substr
 
06:48
Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle A função Oracle substr traz o pedaço da string de uma determinada variável. Ela pode receber até 3 parâmetros, onde o primeiro é a string a ser analisada, o segundo é a posição inicial que pode ser negativo se você for contar da direta para a esquerda(ou seja de traz para frente) e também como parâmetro opcional um terceiro inteiro que vai trazer o tamanho do caracter. SELECT substr('O Aprendaplsql é o melhor site', 3) FROM dual; SELECT substr('O Aprendaplsql é o melhor site', 3, 12) FROM dual; SELECT substr('O Aprendaplsql é o melhor site', -11, 6) FROM dual; https://www.youtube.com/playlist?list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 811 Aprenda PL/SQL
Função Oracle MONTHS BETWEEN
 
04:54
Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle A função de MONTHS_BETWEEN retorna a diferença de meses entre duas datas. SELECT months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY')) AS MONTHS_BETWEEN FROM dual; SELECT trunc(months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY'))) AS MONTHS_BETWEEN FROM dual; SELECT round(months_between(TO_DATE('28/12/2017', 'DD/MM/YY'), TO_DATE('03/08/2017', 'DD/MM/YY'))) AS MONTHS_BETWEEN FROM dual; https://www.youtube.com/watch?v=PjaBYIwXf8c&list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 601 Aprenda PL/SQL
Funções LOWER, UPPER e INITCAP
 
04:40
Acesse o desafio: http://novidades.aprendaplsql.com/15-dias-de-funcoes-oracle Funções LOWER, UPPER e INITCAP são funções de formatação de caracteres para retornar em relatórios e fazer inserções em tabelas. SELECT LOWER ('AprendaPL/SQL') FROM dual; SELECT UPPER ('AprendaPL/SQL') FROM dual; SELECT INITCAP ('aprenda pL/ sql') FROM dual; Veja os outros vídeos da nossa Playlist https://www.youtube.com/watch?v=PjaBYIwXf8c&list=PLMaqczuL07LkjrX6Rvx6TdNM-1nbUKG8p
Views: 681 Aprenda PL/SQL
Partitioning in Oracle - Performance Basics
 
28:35
This is the 2nd video from " Partitioning in Oracle " series, It explains how oracle stores and manages data. What is single Block IO and Multi Block IO ? Why full table scan is better than index access in few cases. The video is very elaborate, I have tried my level best to keep it as simple as possible
Views: 7433 Tech Coach
Oracle DBA Justin - How to re-create the special table dual in an Oracle database # 1 of 2
 
13:47
How to re-create the special table dual in an Oracle database
Views: 2853 jbleistein11
Oracle Part 12 Outer Join and Dual
 
23:34
Outer join, substr, floor, ceil, round, dual
Views: 1040 Free OpenMentor
Oracle Videos In Telugu dual table Part 12
 
07:52
Oracle Videos In Telugu,ms excel 2007 tutorial in telugu,ms word 2007 tutorial in telugu,c language tutorial for beginners in telugu, excel 2007 tutorial in telugu, vlookup in excel 2007 with example in telugu,ms office 2007 tutorials in telugu,,ms access 2007 tutorial in telugu, tally erp 9 full tutorial in telugu,anu script telugu typing tutorial,photoshop in telugu,ms powerpoint 2007 tutorial in telugu, pagemaker tutorial in telugu,adobe photoshop tutorial in telugu, hardware and networking tutorials in telugu,excel tutorial in telugu,ms-excel 2007 tutorial in telugu, excel in telugu, telugu excel tutorial,adobe Photoshop in telugu,ms word 2007 in telugu , ms word 2007 tutorial in telugu, C basis in telugu, hardware in telugu, web designing in telugu,html in telugu, dreamweaver in telugu, c++ in telugu, java in telugu, autocad in telugu, computer tips in telugu, computer basics in telugu, hacking in telugu, computer tips in telugu -~-~~-~~~-~~-~- Please watch: "Best Useful software For Windows Telugu" https://www.youtube.com/watch?v=puGZTRTSoVA -~-~~-~~~-~~-~- #telugutechtuts #hafiztime
Views: 6792 Telugu TechTuts

How to write a general cover letter for an internship
Paper writing service on the
Free annotated bibliography template mla
Vocational teacher cover letter
Law cover letter samples