Question

我有一个sql删除查询，需要两个参数才能运行。当我运行查询时，我得到一个：

com.web.command.exceptions.DatabaseException: The result of a scalar fullselect, SELECT INTO statement, or VALUES INTO statement is more than one row.. SQLCODE=-811, SQLSTATE=21000, DRIVER=4.14.111

我的查询是：

delete from RESETPASSWORD where planner = (select planner from g_secure where planner = ucase(?) or lcase(email) = lcase(?))

我用来设置删除的java是：

public boolean deleteByPlannerAndEmail(String planner, String email) throws DatabaseException{
    Connection conn = null;
    PreparedStatement ps = null;

    try {
        conn = dataAccess.grabConnection("system", "ResetPasswordDAO.deleteByPlanner(planner)");

        ps = conn.prepareStatement(SQL_DELETE_BY_PLANNER);

        ps.setString(1, planner);
        ps.setString(2, email);

        ps.executeUpdate();

    } catch (Exception e) {
        throw new DatabaseException(e.getMessage());
    } finally {
        dataAccess.release(conn, ps,null);
    }

    return true;

}

如何让查询删除所有具有相同规划器的行而不仅仅是一行？谢谢你的任何建议。

Answer 1

如果要删除多行，请将where planner = (...)更改为where planner IN (...)。

Answer 2

我想出了我的问题所以只是发布以防任何人有同样的问题。 =只返回一行，但我想返回多行，所以我不得不将查询更改为

delete from resetpassword where planner in (select planner from g_secure where planner = ucase(?) or lcase(email) = lcase(?))

现在我返回多行而不只是一行。

标量全选错误

2 个答案: