数据库批量查询结果作为更新的值
数据库批量更新。 业务需求: 需要将a表中 type为1 的数据的source_id更新为新的id。 因为之前的id是存储在p_server中,现在更新到了server_info表中 update a set source_id = s.server_id from (select p_server.p_id,p_server.index_code,server_info.ser
数据库批量更新。
业务需求:
需要将a表中 type为1 的数据的source_id更新为新的id。
因为之前的id是存储在p_server中,现在更新到了server_info表中
update a set source_id = s.server_id from (select p_server.p_id,p_server.index_code,server_info.server_id from p_server join server_info on p_server.index_code = server_info.index_code) s where a.source_id = s.p_id and type = 1;

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