| --- |
| { |
| "title": "CHAR", |
| "language": "en" |
| } |
| --- |
| |
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| |
| :::tip Tips |
| This function is supported since the Apache Doris 1.2. |
| ::: |
| |
| ## function char |
| ### description |
| #### Syntax |
| |
| `VARCHAR char(INT,..., [USING charset_name])` |
| |
| Interprets each argument as an integer and returns a string consisting of the characters given by the code values of those integers. `NULL` values are skipped. |
| |
| If the result string is illegal for the given character set, the result from `CHAR()` becomes `NULL`. |
| |
| Arguments larger than `255` are converted into multiple result bytes. For example, `char(15049882)` is equivalent to `char(229, 164, 154)`. |
| |
| Currently only `utf8` is supported for `charset_name`. |
| |
| |
| ### example |
| |
| ``` |
| mysql> select char(68, 111, 114, 105, 115); |
| +--------------------------------------+ |
| | char('utf8', 68, 111, 114, 105, 115) | |
| +--------------------------------------+ |
| | Doris | |
| +--------------------------------------+ |
| |
| mysql> select char(15049882, 15179199, 14989469); |
| +--------------------------------------------+ |
| | char('utf8', 15049882, 15179199, 14989469) | |
| +--------------------------------------------+ |
| | 多睿丝 | |
| +--------------------------------------------+ |
| |
| mysql> select char(255); |
| +-------------------+ |
| | char('utf8', 255) | |
| +-------------------+ |
| | NULL | |
| +-------------------+ |
| ``` |
| ### keywords |
| CHAR |