GAUSS-02353:more than one row returned by a subquery used as an expression SQLSTATE: 21000

错误码

错误描述:more than one row returned by a subquery used as an expression SQLSTATE: 21000
错误原因:子查询返回了多余一行的数据。
解决方法:检查子查询语句的条件,保证只返回一条数据。

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