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fix: problem
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‎solution/0500-0599/0596.Classes More Than 5 Students/README.md‎

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‎solution/0500-0599/0596.Classes More Than 5 Students/README_EN.md‎

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‎solution/0500-0599/0596.Classes With at Least 5 Students/README.md‎

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<!-- solution:start -->
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### 方法一
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### 方法一：分组统计
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我们可以使用 `GROUP BY` 语句，按照班级分组，然后使用 `HAVING` 语句，筛选出学生数量大于等于 $5$ 的班级。
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<!-- tabs:start -->
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#### MySQL
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```sql
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# Write your MySQL query statement below
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SELECT class
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FROM Courses
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GROUP BY 1
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HAVING COUNT(1) >= 5;
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```
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<!-- tabs:end -->

‎solution/0500-0599/0596.Classes With at Least 5 Students/README_EN.md‎

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<!-- solution:start -->
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### Solution 1
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### Solution 1: Grouping and Aggregation
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We can use the `GROUP BY` statement to group by class and then use the `HAVING` statement to filter out the classes with a student count greater than or equal to $5$.
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<!-- tabs:start -->
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#### MySQL
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```sql
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# Write your MySQL query statement below
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SELECT class
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FROM Courses
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GROUP BY 1
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HAVING COUNT(1) >= 5;
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```
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<!-- tabs:end -->

‎solution/0500-0599/0596.Classes More Than 5 Students/Solution.sql‎ renamed to ‎solution/0500-0599/0596.Classes With at Least 5 Students/Solution.sql‎

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‎solution/DATABASE_README.md‎

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| 0585 | [2016年的投资](/solution/0500-0599/0585.Investments%20in%202016/README.md) | `数据库` | 中等 | |
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| 0586 | [订单最多的客户](/solution/0500-0599/0586.Customer%20Placing%20the%20Largest%20Number%20of%20Orders/README.md) | `数据库` | 简单 | |
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| 0595 | [大的国家](/solution/0500-0599/0595.Big%20Countries/README.md) | `数据库` | 简单 | |
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| 0596 | [超过 5 名学生的课](/solution/0500-0599/0596.Classes%20More%20Than%205%20Students/README.md) | `数据库` | 简单 | |
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| 0596 | [超过 5 名学生的课](/solution/0500-0599/0596.Classes%20With%20at%20Least%205%20Students/README.md) | `数据库` | 简单 | |
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| 0597 | [好友申请 I：总体通过率](/solution/0500-0599/0597.Friend%20Requests%20I%20Overall%20Acceptance%20Rate/README.md) | `数据库` | 简单 | 🔒 |
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| 0601 | [体育馆的人流量](/solution/0600-0699/0601.Human%20Traffic%20of%20Stadium/README.md) | `数据库` | 困难 | |

‎solution/DATABASE_README_EN.md‎

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| 0585 | [Investments in 2016](/solution/0500-0599/0585.Investments%20in%202016/README_EN.md) | `Database` | Medium | |
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| 0586 | [Customer Placing the Largest Number of Orders](/solution/0500-0599/0586.Customer%20Placing%20the%20Largest%20Number%20of%20Orders/README_EN.md) | `Database` | Easy | |
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| 0595 | [Big Countries](/solution/0500-0599/0595.Big%20Countries/README_EN.md) | `Database` | Easy | |
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| 0596 | [Classes More Than 5 Students](/solution/0500-0599/0596.Classes%20More%20Than%205%20Students/README_EN.md) | `Database` | Easy | |
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| 0596 | [Classes With at Least 5 Students](/solution/0500-0599/0596.Classes%20With%20at%20Least%205%20Students/README_EN.md) | `Database` | Easy | |
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| 0597 | [Friend Requests I Overall Acceptance Rate](/solution/0500-0599/0597.Friend%20Requests%20I%20Overall%20Acceptance%20Rate/README_EN.md) | `Database` | Easy | 🔒 |
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| 0601 | [Human Traffic of Stadium](/solution/0600-0699/0601.Human%20Traffic%20of%20Stadium/README_EN.md) | `Database` | Hard | |

‎solution/README.md‎

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| 0593 | [有效的正方形](/solution/0500-0599/0593.Valid%20Square/README.md) | `几何`,`数学` | 中等 | |
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| 0594 | [最长和谐子序列](/solution/0500-0599/0594.Longest%20Harmonious%20Subsequence/README.md) | `数组`,`哈希表`,`计数`,`排序`,`滑动窗口` | 简单 | |
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| 0595 | [大的国家](/solution/0500-0599/0595.Big%20Countries/README.md) | `数据库` | 简单 | |
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| 0596 | [超过 5 名学生的课](/solution/0500-0599/0596.Classes%20More%20Than%205%20Students/README.md) | `数据库` | 简单 | |
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| 0596 | [超过 5 名学生的课](/solution/0500-0599/0596.Classes%20With%20at%20Least%205%20Students/README.md) | `数据库` | 简单 | |
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| 0597 | [好友申请 I：总体通过率](/solution/0500-0599/0597.Friend%20Requests%20I%20Overall%20Acceptance%20Rate/README.md) | `数据库` | 简单 | 🔒 |
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| 0598 | [区间加法 II](/solution/0500-0599/0598.Range%20Addition%20II/README.md) | `数组`,`数学` | 简单 | |

‎solution/README_EN.md‎

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| 0593 | [Valid Square](/solution/0500-0599/0593.Valid%20Square/README_EN.md) | `Geometry`,`Math` | Medium | |
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| 0594 | [Longest Harmonious Subsequence](/solution/0500-0599/0594.Longest%20Harmonious%20Subsequence/README_EN.md) | `Array`,`Hash Table`,`Counting`,`Sorting`,`Sliding Window` | Easy | |
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| 0595 | [Big Countries](/solution/0500-0599/0595.Big%20Countries/README_EN.md) | `Database` | Easy | |
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| 0596 | [Classes More Than 5 Students](/solution/0500-0599/0596.Classes%20More%20Than%205%20Students/README_EN.md) | `Database` | Easy | |
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| 0596 | [Classes With at Least 5 Students](/solution/0500-0599/0596.Classes%20With%20at%20Least%205%20Students/README_EN.md) | `Database` | Easy | |
609608
| 0597 | [Friend Requests I Overall Acceptance Rate](/solution/0500-0599/0597.Friend%20Requests%20I%20Overall%20Acceptance%20Rate/README_EN.md) | `Database` | Easy | 🔒 |
610609
| 0598 | [Range Addition II](/solution/0500-0599/0598.Range%20Addition%20II/README_EN.md) | `Array`,`Math` | Easy | |

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