Quick Search:
CODE
Oracle PL/SQL Code Library
JOBS
Find Or Post Oracle Jobs
FORUM
Oracle Discussion & Chat
 Oracle PL/SQL: String Functions: SUBSTR Jump to:  
Category: >> Oracle PL/SQL >> String Functions: SUBSTR Bookmark and Share

<< lastnext >>

Snippet Name: String Functions: SUBSTR

Description: The substr functions allows you to extract a substring from a string.

Also see:
» FUNCTIONS: Deterministic
» FUNCTIONS: Nested Functions
» FUNCTIONS: IF statement
» FUNCTIONS: date/time
» FUNCTIONS: Sample functions
» FUNCTIONS: drop
» FUNCTIONS: Recompile
» FUNCTIONS: DEBUG mode
» FUNCTIONS: IN OUT parameter
» FUNCTIONS: with output parameters
» FUNCTIONS: with parameters
» FUNCTIONS: without parameters
» FUNCTIONS: Create function
» FUNCTIONS: special restrictions
» FUNCTIONS: System Privileges
» IN Function
» Built-In Functions: CASE
» Built-In Functions: DECODE
» SUBST and INSTR together
» INSTR (InString)
» SUBSTR (SubString)
» String Functions: REVERSE
» String Functions: LENGTH
» String Functions: INSTR
» String Functions: CONCAT
» String Functions: CHAR
» String Functions: INITCAP
» String Functions: LOWER
» String Functions: UPPER
» Date Functions: NUMTOYMINTERVAL

Comment: If start_position is 0, then substr treats start_position as 1 (ie: the first position in the string).

If start_position is a positive number, then substr starts from the beginning of the string.

If start_position is a negative number, then substr starts from the end of the string and counts backwards.

If length is a negative number, then substr will return a NULL value.

Language:
Highlight Mode: PLSQL
Last Modified: March 03rd, 2009

SELECT SUBSTR('This is great', 6, 2) FROM dual; 
returns 'is' 
 
 
SUBSTR('This is great', 6) FROM dual;
returns 'is great'
 


Free
Oracle Magazine
Subscriptions
and Oracle White Papers


SQL University.net courses meet the most demanding needs of the business world for advanced education in a cost-effective manner. SQL University.net courses are available immediately for IT professionals and can be taken without disruption of your workplace schedule or processes.

Compared to traditional travel-based training, SQL University.net saves time and valuable corporate resources, allowing companies to do more with less. That's our mission, and that's what we deliver.

Click here to find out more
 
Home      :      Code Library      :      Sponsors      :      Privacy      :      Terms of Use      :      Contact Us 67 users online    © 2009 psoug.org

PSOUG LOGIN
Username: 
Password: 
Forgot your password?