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Zeoslib：如何判断查询执行何时完成？

[英]Zeoslib: How to tell when query execution is complete?

原文 2011-09-04 11:58:25 1 1 mysql/ sql/ delphi/ mysql-connector/ zeos

I am using ZeosLib within Delphi to call a MySQL stored procedure through the TZQuery object. 我在Delphi中使用ZeosLib通过TZQuery对象调用MySQL存储过程。 Immediately after MySQL finishes execution of the stored procedure I need to initiate my next block of code. 在MySQL完成存储过程的执行后，我需要立即启动下一个代码块。

I added a SELECT 1; 我添加了一个SELECT 1; statement at the end of my MySQL stored procedure. 我的MySQL存储过程结束时的语句。 What is the best way to find out that the results have been returned? 找出结果已被退回的最佳方法是什么？

1 个解决方案

Zeos lib does not play nice with stored procedures that return a result set. Zeos lib对返回结果集的存储过程不起作用。
It actively disables the returned resultset. 它会主动禁用返回的结果集。
There is a workaround for that, you can activivate the resultset by altering the ZEOS source code. 有一种解决方法，您可以通过更改ZEOS源代码来激活结果集。

However when you do that, you get lots of errors like MySQL has gone away . 但是，当你这样做时，你会收到很多像MySQL has gone away的错误。
At unpredictable times, which is probably why they disabled this option in the first place. 在不可预测的时间，这可能是他们首先禁用此选项的原因。

In the end the workaround I went for is to put any resultset that I need in a (temporary) table and query that after the stored procedure finishes. 最后，我采用的解决方法是将所需的任何结果集放在（临时）表中，并在存储过程完成后查询。 This solved the errors and works well for me. 这解决了错误，对我来说效果很好。