请教一个sqlserver数据库连接的问题
我使用oledb进行excel的导入导出工作，导入数据量不算小大约多的时候大约在4W左右。 今天访问突然出现了 问题 ，查了一下发现是 数据库 连接 池用完了。然后查看了一下 数据库 连接 发现有大约600个左右的 连接 ，其中550个都是oledb 连接 ，且全部处于睡眠
我使用oledb进行excel的导入导出工作，导入数据量不算小大约多的时候大约在4W左右。
今天访问突然出现了问题，查了一下发现是数据库连接池用完了。然后查看了一下数据库连接发现有大约600个左右的连接，其中550个都是oledb连接，且全部处于睡眠状态。
我已经确定我所有的Oledbconnection操作完之后都关闭了。但是为何这里会有那么多的连接？我明明已经close()了。怎么还会存在那么多睡眠的连接？
谢谢了
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