| --- |
| { |
| "title": "if", |
| "language": "en" |
| } |
| --- |
| |
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| |
| ## if |
| ### description |
| #### Syntax |
| |
| `if(boolean condition, type valueTrue, type valueFalseOrNull)` |
| |
| |
| Returns valueTrue when condition is true, returns valueFalseOrNull otherwise. |
| |
| The return type is the type of the result of the valueTrue/valueFalseOrNull expression |
| |
| ### example |
| |
| ``` |
| mysql> select user_id, if(user_id = 1, "true", "false") test_if from test; |
| +---------+---------+ |
| | user_id | test_if | |
| +---------+---------+ |
| | 1 | true | |
| | 2 | false | |
| +---------+---------+ |
| ``` |
| ### keywords |
| IF |
