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Updated on 2023-10-25 GMT+08:00
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find_in_set

This function is used to return the position (stating from 1) of str1 in str2 separated by commas (,).

Syntax

find_in_set(string <str1>, string <str2>)

Parameters

Table 1 Parameters

Parameter

Mandatory

Type

Description

str1

Yes

STRING

String to be searched for

str2

Yes

STRING

String separated by a comma (,)

Return Values

The return value is of the BIGINT type.

  • If str1 cannot be matched in str2 or str1 contains commas (,), 0 is returned.
  • If the value of str1 or str2 is NULL, NULL is returned.

Example Code

  • Search for the position of string ab in string abc,123,ab,c. An example command is as follows:

    The value 3 is returned.

    select find_in_set('ab', 'abc,123,ab,c');
  • Search for the position of string hi in string abc,123,ab,c. An example command is as follows:

    The value 0 is returned.

    select find_in_set('hi', 'abc,123,ab,c');
  • The value of any input parameter is NULL. An example command is as follows:

    The value NULL is returned.

    select find_in_set(null, 'abc,123,ab,c');
Parent topic: String Functions