You can't specify target table 'basedata_role_type' for update in FROM clause3
时间: 2024-03-08 10:42:31 浏览: 133
mysql中You can’t specify target table for update in FROM clause错误解决方法
根据提供的引用内容,当在MySQL中出现"You can't specify target table 'basedata_role_type' for update in FROM clause"错误时,可以尝试以下解决方法:
方法一:多嵌套一层子查询
```sql
UPDATE basedata_role_type
SET column_name = value
WHERE id IN (
SELECT id
FROM (
SELECT id
FROM basedata_role_type
) AS t
);
```
方法二:使用临时表
```sql
CREATE TEMPORARY TABLE temp_table
SELECT id
FROM basedata_role_type;
UPDATE basedata_role_type
SET column_name = value
WHERE id IN (
SELECT id
FROM temp_table
);
DROP TEMPORARY TABLE temp_table;
```
方法三:使用JOIN语句
```sql
UPDATE basedata_role_type AS t1
JOIN (
SELECT id
FROM basedata_role_type
) AS t2 ON t1.id = t2.id
SET t1.column_name = value;
```
请注意,根据具体情况选择适合的解决方法。
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