MySQL Split String Function

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MySQL does not include a function to split a delimited string. However, it’s very easy to create your own function.

Create function syntax

A user-defined function is a way to extend MySQL with a new function that works like a native MySQL function.

CREATE [AGGREGATE] FUNCTION function_nameRETURNS {STRING|INTEGER|REAL|DECIMAL}

To create a function, you must have the INSERT privilege for the <mysql> database.

Split delimited strings

The following example function takes 3 parameters, performs an operation using an SQL function, and returns the result.

Function

CREATE FUNCTION SPLIT_STR(  x VARCHAR(255),  delim VARCHAR(12),  pos INT)RETURNS VARCHAR(255)RETURN REPLACE(SUBSTRING(SUBSTRING_INDEX(x, delim, pos),       LENGTH(SUBSTRING_INDEX(x, delim, pos -1)) + 1),       delim, '');

Usage

SELECT SPLIT_STR(string, delimiter, position)

Example

SELECT SPLIT_STR('a|bb|ccc|dd', '|', 3) as third;+-------+| third |+-------+| ccc   |+-------+
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