我用Snap 0.6和Snaplet-hdbc基础设施书写一个网络。 在后端,Im利用CHDBC-mysql连接MySQL。 但是,在接手时,它从MySQL处获得“从辛迪加通,现在你就能够控制这一指挥错误”。 我在每次问答时都会使用。 在有些争执之后,MySQL似乎不支持多种争.。 但是,如何避免使用《人类发展报告》?
After some investigation, I found the solution. Don t use SELECT statement in withTransaction or with commit. And don t use query for SELECT. In my opinion, HDBC-mysql is using the mysqlclient library, so you can t issue a new query when the data of last query is still unused or freed. Due to the laziness of haskell, if you run a SELECT in withTransaction, the data is unused until your code need it, so when the withTransaction function calls commit, it will result in the "Command out of sync" error. For query , maybe it returns the number of rows selected, but the data selected out is buffered by the mysqlclient library, so it s the problem.
I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...
<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...
我把我的用心从使用QQL转向MySQL。 它与凯科特合作,现在不工作,因为我已经改变,使用MySQL。 这里的错误信息是:
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