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array_intersect

Description​

Returns an array of the elements in the intersection of one or more arrays.

Syntax​

array_intersect(input0, input1, ...)

Parameters​

input: one or more arrays whose intersection you want to obtain. Specify arrays in the (input0, input1, ...) format and make sure that the arrays that you specify are of the same data type.

Return value​

Returns an array of the same data type as the arrays that you specify.

Examples​

Example 1:

mysql> SELECT array_intersect(["SQL", "storage"], ["mysql", "query", "SQL"], ["SQL"])
AS no_intersect ;
+--------------+
| no_intersect |
+--------------+
| ["SQL"]      |
+--------------+

Example 2:

mysql> SELECT array_intersect(["SQL", "storage"], ["mysql", null], [null]) AS no_intersect ;
+--------------+
| no_intersect |
+--------------+
| []           |
+--------------+

Example 3:

mysql> SELECT array_intersect(["SQL", null, "storage"], ["mysql", null], [null]) AS no_intersect ;
+--------------+
| no_intersect |
+--------------+
| [null]       |
+--------------+