postman错误java.sql.SQLSyntaxErrorException: Every derived table must have its own alias
时间: 2023-11-09 10:03:44 浏览: 81
Mysql错误:Every derived table must have its own alias
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这个错误通常是由于 SQL 查询中使用了派生表(Derived Table),但是没有为其指定别名(Alias)所导致的。解决方法是为派生表指定一个别名。
例如,以下 SQL 查询语句中就使用了一个没有别名的派生表:
```
SELECT *
FROM (
SELECT *
FROM table1
WHERE column1 = 'value'
)
JOIN table2 ON table1.id = table2.id
```
应该将其改为:
```
SELECT *
FROM (
SELECT *
FROM table1
WHERE column1 = 'value'
) AS t1
JOIN table2 ON t1.id = table2.id
```
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