在MySQL存储过程中INSERT INTO .. SELECT的任何已知问题？

Question

我正在尝试从MySQL存储过程调用INSERT INTO ... SELECT语句。

我总是在MySQL中遇到这个错误：ERROR 1242 (21000): Subquery returns more than 1 row

我的 SELECT 语句肯定会返回多行，但 INSERT 语句不会返回。

我错过了什么？

代码：

PREPARE query FROM 'INSERT INTO tmpTable (client_program, ref_client, ref_household) SELECT ref_client_program, ref_member, \"84k3\" FROM client_program_members WHERE ref_client_program IN (74)';
EXECUTE query ;
DEALLOCATE PREPARE query;

Answer 1

不确定，但请尝试这一行 -

PREPARE query FROM 'INSERT INTO `tmpTable`(client_program, ref_client, ref_household) SELECT ref_client_program, ref_member, ''84k3'' FROM client_program_members WHERE ref_client_program IN(74)';

Answer 2

确实可以做insert ... select 并且您可以从该选择中拥有多行。

以下代码应该有效。

DECLARE sql varchar(1000);
SET sql = CONCAT("INSERT INTO tmpTable (client_program, ref_client, ref_household) "
               , " SELECT ref_client_program, ref_member, \'84k3\' "
               , " FROM client_program_members WHERE ref_client_program = ? ");

PREPARE query FROM sql;
SET @client_prog = 74; 
EXECUTE query USING @client_prog;
DEALLOCATE PREPARE query;