根据Mysql中的另一个表值更新表

Question

我必须根据另一个表的值在表中插入一行，其中只有我要插入process_master_id。其他process_step_master_id和process_srno将是默认值1。 我正在运行以下脚本，但出现“ 操作数应包含1列”错误。我在哪里做错了？

INSERT INTO process_step (process_master_id, process_step_master_id, process_srno)  
SELECT (id, "1","1") FROM process_master WHERE id=1; 

Answer 1

您可以将其写为

INSERT INTO process_step(process_master_id, process_step_master_id, process_srno)
   values((SELECT id FROM process_master where id = 1),1,1)

Answer 2

您可以在下面尝试-

INSERT INTO process_step (process_master_id, process_step_master_id, process_srno)  
   SELECT id, 1,1 FROM process_master WHERE id=1;