Oracle Plsql Length4 Function
Oracle / PLSQL: LENGTH4 Function
This Oracle tutorial explains how to use the Oracle/PLSQL LENGTH4 function with syntax and examples.
Description
The Oracle/PLSQL LENGTH4 function returns the length of the specified string, using UCS4 code points.
Syntax
The syntax for the LENGTH4 function in Oracle/PLSQL is:
LENGTH4( string1 )Parameters or Arguments
- string1
The string to return the length for. It can be CHAR, VARCHAR2, NCHAR, or NVARCHAR2, but it can not be CLOB or NCLOB.
Returns
The LENGTH4 function returns a numeric value. If string1 is NULL, then the LENGTH4 function will return NULL.
Applies To
The LENGTH4 function can be used in the following versions of Oracle/PLSQL:
- Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Example
Let's look at some Oracle LENGTH4 function examples and explore how to use the LENGTH4 function in Oracle/PLSQL.
For example:
LENGTH4(NULL)
Output: NULL
LENGTH4('')
Output: NULL
LENGTH4(' ')
Output: 1
LENGTH4('aodba.com')
Output: 16
LENGTH4('aodba.com ')
Output: 17