Question

我有一个SQL查询，其中我计算行数

SELECT count(*) AS `nr` FROM `ordine` WHERE (ditta_id = '3') AND (YEAR(`data`) = '2012') AND (stato = 'approvato' or stato = 'consegnato') LIMIT 1

我将一些行更改stato更新为'approvato'，有时count（）给我正确的数字，有时它给我旧数字

这是我的日志：

2012-03-23T10:42:45+01:00 DEBUG (7): Row id = 1809
2012-03-23T10:42:45+01:00 DEBUG (7): SELECT count(*) AS `nr` FROM `ordine` WHERE (ditta_id = '3') AND (YEAR(`data`) = '2012') AND (stato = 'approvato' or stato = 'consegnato') LIMIT 1
2012-03-23T10:42:45+01:00 DEBUG (7): Result = 140
...change stato into 'approvato' thus count must give me 141 next time, requery the row, check changes are saved


2012-03-23T10:44:52+01:00 DEBUG (7): Row id = 1810
2012-03-23T10:44:52+01:00 DEBUG (7): SELECT count(*) AS `nr` FROM `ordine` WHERE (ditta_id = '3') AND (YEAR(`data`) = '2012') AND (stato = 'approvato' or stato = 'consegnato') LIMIT 1
2012-03-23T10:44:52+01:00 DEBUG (7): Result = 140 ?!!! why not 141?

ditta_id，agente_id，stato是索引

我正在使用Zend Framework 1.11.11和MySQL 5.1.49-3

Answer 1

对于您更新的行，我假设以下其中一项是真的......

ditta_id不是'3'
YEAR(data)不是'2012'
stato已经'approvato'
stato已经'consegnato'
stato中的新值有拼写错误

您是否可以在更改stato字段之前和之后向我们显示这些字段？

选择count（*）错误的结果，缓存还是什么？

1 个答案: