| --- |
| { |
| "title": "ARRAY_CONTAINS", |
| "language": "en" |
| } |
| --- |
| |
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| |
| ## array_contains |
| |
| array_contains |
| |
| ### description |
| |
| #### Syntax |
| |
| `BOOLEAN array_contains(ARRAY<T> arr, T value)` |
| |
| Check if a value presents in an array column. Return below values: |
| |
| ``` |
| 1 - if value presents in an array; |
| 0 - if value does not present in an array; |
| NULL - when array is NULL; |
| ``` |
| |
| ### example |
| |
| ``` |
| mysql> SELECT id,c_array,array_contains(c_array, 5) FROM `array_test`; |
| +------+-----------------+------------------------------+ |
| | id | c_array | array_contains(`c_array`, 5) | |
| +------+-----------------+------------------------------+ |
| | 1 | [1, 2, 3, 4, 5] | 1 | |
| | 2 | [6, 7, 8] | 0 | |
| | 3 | [] | 0 | |
| | 4 | NULL | NULL | |
| +------+-----------------+------------------------------+ |
| |
| mysql> select array_contains([null, 1], null); |
| +--------------------------------------+ |
| | array_contains(ARRAY(NULL, 1), NULL) | |
| +--------------------------------------+ |
| | 1 | |
| +--------------------------------------+ |
| 1 row in set (0.00 sec) |
| ``` |
| |
| ### keywords |
| |
| ARRAY,CONTAIN,CONTAINS,ARRAY_CONTAINS |
| |