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arrays_overlap

Description​

Checks whether the intersection of two arrays is empty. The arrays that you specify must be of the same data type. If the intersection is empty, this function returns 0. Otherwise, this function returns 1.

Syntax​

arrays_overlap(input0, input1)

Parameters​

  • input0: one of the two arrays that you want to compare.

  • input1: the other of the two arrays that you want to compare. The value of this parameter must be of the same data type as the value of the input0 parameter.

Return value​

Returns a value of the BOOLEAN data type.

Examples​

Example 1:

mysql> select arrays_overlap([11, 9, 3, 2], [null, 11]);
+--------------------------------------+
| arrays_overlap([11,9,3,2], [NULL,11]) |
+--------------------------------------+
|                                    1 |
+--------------------------------------+

Example 2:

mysql> select arrays_overlap([9, 3, 2], [null, 11]);
+-----------------------------------+
| arrays_overlap([9,3,2], [NULL,11]) |
+-----------------------------------+
|                                 0 |
+-----------------------------------+

Example 3:

mysql> select arrays_overlap([9, 3, null, 2], [null, 11]);
+----------------------------------------+
| arrays_overlap([9,3,NULL,2], [NULL,11]) |
+----------------------------------------+
|                                      1 |
+----------------------------------------+

Example 4:

mysql> select arrays_overlap([9, 3, "SQL", 2], [null, "SQL"]);
+--------------------------------------------+
| arrays_overlap([9,3,'SQL',2], [NULL,'SQL']) |
+--------------------------------------------+
|                                          1 |
+--------------------------------------------+