我们的数据库存在严重问题。我们使用SQL Server 2014与2008兼容。数据库锁定问题
每天早上,我们正在获取数据库锁定问题和数据库使用100%cpu。 因此,我们每天早上修复此问题的方法是修改以下存储过程,并在添加和删除语句中的NoLock
和再次运行过程之间切换,并且数据库很高兴。所以我们不知道为什么我们有时需要添加NoLock
,有时不需要添加。
ALTER Procedure [dbo].[ScanBox]
(
@KollieID varchar(50) = '',
@SupplierID int = 0,
@BuyerID int = 0
)
As
Set NoCount On
IF @kollieid <> '' AND @supplierid >0
BEGIN
SELECT TRPO_KollieID.ID, OrderID, ISNULL(BoxNo, - 1) AS BoxNo, ISNULL(KollieID, '') AS KollieID, KollieNumber,
ISNULL(LastStatus, - 1) AS LastStatus, LastStatusTime, ISNULL(LastStatusPDA, - 1) AS LastStatusPDA,
ISNULL(LastStatusTDLogin, '') AS LastStatusTDLogin, ISNULL(OrginalKollieID,'') AS OrginalKollieID,
ISNULL(OS.StatusName, '') AS LastStatusText , ISNULL(OrderStatusExternalText,'') AS OrderStatusExternalText ,
ISNULL(Terminal, '') AS Terminal, ISNULL(TerminalZone,'') AS TerminalZone
FROM TRPO_KollieID
WITH (NOLOCK)
LEFT OUTER JOIN OrderStatus os WITH (NOLOCK) on OS.StatusID = TRPO_KollieID.LastStatus
WHERE TRPO_KollieID.KollieID = @KollieID AND (OrderID IN (SELECT TRPO_Header.ID
FROM TRPO_Header WITH (NOLOCK)
INNER JOIN TRPO_KollieID WITH (NOLOCK) ON TRPO_KollieID.OrderID = TRPO_Header.ID
WHERE TRPO_Header.SupplierID = @supplierid AND TRPO_Header.Status <> 'A' AND TRPO_KollieID.KollieID = @kollieid))
END
ELSE IF @kollieid <> '' AND @BuyerID >0
BEGIN
SELECT TRPO_KollieID.ID, OrderID, ISNULL(BoxNo, - 1) AS BoxNo, ISNULL(KollieID, '') AS KollieID, KollieNumber,
ISNULL(LastStatus, - 1) AS LastStatus, LastStatusTime, ISNULL(LastStatusPDA, - 1) AS LastStatusPDA,
ISNULL(LastStatusTDLogin, '') AS LastStatusTDLogin, ISNULL(OrginalKollieID,'') AS OrginalKollieID,
ISNULL(OS.StatusName, '') AS LastStatusText , ISNULL(OrderStatusExternalText,'') AS OrderStatusExternalText ,
ISNULL(Terminal, '') AS Terminal, ISNULL(TerminalZone,'') AS TerminalZone
FROM TRPO_KollieID
WITH (NOLOCK)
LEFT OUTER JOIN OrderStatus os WITH (NOLOCK) on OS.StatusID = TRPO_KollieID.LastStatus
WHERE TRPO_KollieID.KollieID = @KollieID AND OrderID IN (SELECT TRPO_Header.ID
FROM TRPO_Header WITH (NOLOCK)
INNER JOIN TRPO_KollieID WITH (NOLOCK) ON TRPO_KollieID.OrderID = TRPO_Header.ID
WHERE TRPO_Header.BuyerID = @BuyerID AND TRPO_Header.Status <> 'A' AND TRPO_KollieID.KollieID = @kollieid)
END
我们已经尝试是
- 我们试图索引数据库。
- 试图设置的IsolationLevel读提交快照
没有帮助我们。有没有人有解决这个问题的好主意?
给我们这个查询的执行计划。也许你没有以正确的方式编制数据库索引。另外 - 不要使用NOLOCK提示。 –