php - 存储过程和包装它的 php 代码上的双重事务

Question

我的代码如下。

1) PHP代码

\DB::transaction(function () use ($id, $member_id) {

                \DB::select(\DB::raw('call doJob(?,?,@pJobLogId)'), [$id, $member_id]);

});

2)存储过程，上面的doJob..

BEGIN

    DECLARE EXIT HANDLER FOR SQLEXCEPTION
    BEGIN
        ROLLBACK;
        RESIGNAL;
    END;

    START TRANSACTION;

    // codes(logic)...

    COMMIT;

END

以上有问题吗？如果我应该放弃一笔交易，我应该放弃哪一笔交易？

另外我不知道双重事务是否会导致此类错误。我看到了如下的错误日志，但这几乎不会发生。

SQLSTATE[40001]: Serialization failure: 1213 Deadlock found when trying to get lock; try restarting transaction

Answer 1

根据MySql官方文档:

Section 13.3.3 Statements That Cause an Implicit Commit

Transactions cannot be nested. This is a consequence of the implicit commit performed for any current transaction when you issue a START TRANSACTION statement or one of its synonyms. https://dev.mysql.com/doc/refman/5.7/en/implicit-commit.html