ERROR 1222 (21000): The used SELECT statements have a different number of columns
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2023-12-16 15:34:52
1) error 1222 (21000): the used select statements have a different number of columns :...
1) error 1222 (21000): the used select statements have a different number of columns :
这是因为使用union的两个sql语句产生的记录的表结构不一致. 必须是结构完全一致的记录集合才可以使用union.
以上就是两个表的字段不一样,导致,所以大家可以检查下。
这是因为使用union的两个sql语句产生的记录的表结构不一致. 必须是结构完全一致的记录集合才可以使用union.
以上就是两个表的字段不一样,导致,所以大家可以检查下。
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ERROR 1222 (21000): The used SELECT statements have a different number of columns
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ERROR 1222 (21000): The used SELECT statements have a differ