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Update content in sql directory

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paigeman 2023-07-08 12:06:49 +08:00
parent adff2d8772
commit 2846e85461
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2 changed files with 3 additions and 3 deletions
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4
docs/database/sql/sql-questions-01.md
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@ -192,7 +192,7 @@ ORDER BY vend_name DESC
| 运算符 | 描述 | | 运算符 | 描述 |
| :------ | :--------------------------------------------------------- | | :------ | :--------------------------------------------------------- |
| = | 等于 | | = | 等于 |
| <> | 不等于。**注释：**在 SQL 的一些版本中，该操作符可被写成 != | | <> | 不等于。 **注释：** 在 SQL 的一些版本中，该操作符可被写成 != |
| > | 大于 | | > | 大于 |
| < | 小于 | | < | 小于 |
| >= | 大于等于 | | >= | 大于等于 |
@ -358,7 +358,7 @@ WHERE prod_id IN ('BR01', 'BR02', 'BR03') AND quantity >= 100
```sql ```sql
SELECT prod_name, prod_price SELECT prod_name, prod_price
FROM Products FROM Products
WHERE prod_price BETWEEN 3 AND 6 WHERE prod_price >= 3 and prod_price <= 6
ORDER BY prod_price ORDER BY prod_price
``` ```

2
docs/database/sql/sql-syntax-summary.md
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@ -556,7 +556,7 @@ SELECT column_name(s) FROM table2;
| `LEFT()`、`RIGHT()` | 左边或者右边的字符 | | `LEFT()`、`RIGHT()` | 左边或者右边的字符 |
| `LOWER()`、`UPPER()` | 转换为小写或者大写 | | `LOWER()`、`UPPER()` | 转换为小写或者大写 |
| `LTRIM()`、`RTRIM()` | 去除左边或者右边的空格 | | `LTRIM()`、`RTRIM()` | 去除左边或者右边的空格 |
| `LENGTH()` | 长度 | | `LENGTH()` | 长度，以字节为单位 |
| `SOUNDEX()` | 转换为语音值 | | `SOUNDEX()` | 转换为语音值 |
其中， **`SOUNDEX()`** 可以将一个字符串转换为描述其语音表示的字母数字模式。 其中， **`SOUNDEX()`** 可以将一个字符串转换为描述其语音表示的字母数字模式。