MySql 使用嵌套选择插入动态查询

Question

我正在尝试混合使用静态和动态值的 MySQL 插入查询。 INSERT 命令是。

    INSERT INTO ebdb.requestaction(RequestID,
                                   ActionID,
                                   TransactionID,
                                   IsActive,
                                   IsComplete)
       VALUES (
                 1,
**Dynamic Value from Below Query,
Dynamic Value from Below Query,**
                1,
                 0);

获取字段 2 和 3 的查询来自以下查询。

    SELECT transitionaction.TransitionID, transitionaction.ActionID
      FROM transitionaction
           INNER JOIN transition
              ON transitionaction.TransitionID = transition.TransitionID
     WHERE     transition.TenantID = 1
           AND transition.ProcessID = 1
           AND transition.CurrentStateID = 1
    ORDER BY transitionaction.TransitionID;

我在这里做错了。 请指导我如何以最优化的方式实现这一点。

Answer 1

您可以选择静态值作为查询的一部分，例如：

INSERT INTO ebdb.requestaction(RequestID, ActionID, TransactionID, IsActive, IsComplete)
SELECT 1, transitionaction.ActionID, transitionaction.TransitionID, 1, 0
  FROM transitionaction
       INNER JOIN transition
          ON transitionaction.TransitionID = transition.TransitionID
 WHERE     transition.TenantID = 1
       AND transition.ProcessID = 1
       AND transition.CurrentStateID = 1
ORDER BY transitionaction.TransitionID;

更多信息，请参考MySQL's Insert...Select Syntax