LENGTH2 function in Oracle

LENGTH2 is one of the vital string/char functions of Oracle. It is used to get the length of a string, same as the LENGTH function with the only difference that it uses the UCS2 code points. The LENGTH2 function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.

Syntax:

LENGTH2 ( string )


Parameters:
string: It is used to specify the string whose length needs to get.

Example 1:

LENGTH2 (NULL)

Output:

NULL


Explanation:
There is no string passed hence the result is NULL.

Example 2:

LENGTH2 (‘’)

Output:

NULL


Explanation:
There is no string passed hence the result is NULL.

Example 3:

LENGTH2 (‘ ’)

Output:

1


Explanation:
The SPACE is passed as a string, hence the result is 1.

Example 3:

LENGTH2 (‘HELLOWORLD.COM’)

Output:

14


Explanation:
The total number of characters including the ‘.’ is 14 and so is the result..