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Add example for multi argument CHAR() #17011

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Apr 26, 2024
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Add example for multi argument CHAR() #17011

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Update string-functions.md
hfxsd Apr 7, 2024
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Update functions-and-operators/string-functions.md
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Merge branch 'string_func_char' of https://github.com/hfxsd/docs-cn i…
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15 changes: 14 additions & 1 deletion functions-and-operators/string-functions.md
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Expand Up @@ -129,7 +129,7 @@ SELECT CustomerName, BIT_LENGTH(CustomerName) AS BitLengthOfName FROM Customers;

### [`CHAR()`](https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_char)

`CHAR()` 函数用于获取指定 ASCII 值的对应字符。该函数执行的操作与 `ASCII()` 相反，`ASCII()` 用于返回指定字符的 ASCII 值。
`CHAR()` 函数用于获取指定 ASCII 值的对应字符。该函数执行的操作与 `ASCII()` 相反，`ASCII()` 用于返回指定字符的 ASCII 值。如果提供了多个参数，该函数将作用于所有参数作，然后将它们连接在一起。
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示例：

Expand Down Expand Up @@ -183,6 +183,19 @@ SELECT CHAR(50089);
+--------------+
```

```sql
SELECT CHAR(65,66,67);
```

```
+----------------+
| CHAR(65,66,67) |
+----------------+
| ABC |
+----------------+
1 row in set (0.00 sec)
```

### [`CHAR_LENGTH()`](https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_char-length)

`CHAR_LENGTH()` 函数用于获取输入参数中字符的总数。
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