Sql server sql查询超时…case/if/怎么办

我有以下sql server存储过程：

PROCEDURE [dbo].[GetSoftwareProgramsGrid]
    @SoftwareTitle varchar(1000)='All',
    @CategoryID varchar(100)='All',
    @ManufacturerID varchar(50)='All',
    @ModelID int=0, -- 0 means all
    @AssetID int=0, -- 0 means all
    @AssetStatus int=0, --0 is active, 1 is inactive, and 2 is all
    @Status int=0, --0 is active, 1 is inactive, and 2 is all
    @Type varchar(100)='All',
    @Site varchar(100)='All',
    @Department varchar(100)='All',
    @Manager varchar(100)='All',
    @Employee varchar(100)='All',
    @SortExpression varchar(100)='Software',
    @SortOrder int=0
AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

SELECT
*
FROM
(
    SELECT DISTINCT
        Program AS Software
    FROM
        AssetProgram ap
    LEFT JOIN
        AssetAssignment aa
    ON
        aa.AssetID = ap.AssetID
    LEFT JOIN
        [MyLinkedServer].MyDB.dbo.Login l
    ON
        l.LoginID = aa.LoginID
    LEFT JOIN
        Asset a
    ON
        a.AssetID = ap.AssetID
    INNER JOIN Model m
    ON
        a.ModelID = m.ModelID
    INNER JOIN
        Category c
    ON
        c.CategoryID = m.CategoryID
    INNER JOIN Manufacturer ma 
    ON
        ma.ManufacturerID = m.ManufacturerID
    WHERE
        (
            --Software filters
            (ap.Program = @SoftwareTitle OR @SoftwareTitle='All')

            --Asset filters
            AND (c.CategoryID = @CategoryID OR @CategoryID='All')   --filter category
            AND (ma.ManufacturerID = @ManufacturerID OR @ManufacturerID='All') --filter manufacturer
            AND (m.ModelID = @ModelID OR @ModelID = 0)  --filter model
            AND (a.AssetID = @AssetID OR @AssetID = 0)  --filter by asset name (the actual asset id)
            AND (((a.Inactive=@AssetStatus) OR (@AssetStatus=2)))
            AND (aa.Inactive=0) 
            AND (ap.Inactive=0)

            --Employee filters
            /*AND ((l.Inactive=@Status) OR (@Status=2)) --status of employee 2 is all, 1 is inactive, and 0 is active

            AND (@Type='All' OR (@Type='Contractor' AND l.IsContractor=1) OR (@Type='Regular' AND l.IsContractor=0))    --contractor or regular employee
            AND (@Site='All' OR @Site=l.ClientID)   --the site
            AND (@Department='All' OR @Department=l.FunctionalGroupID)  --the department
            AND ((l.Manager = @Manager OR l.FullName=@Manager) OR @Manager='All')   --the manager
            AND (l.FullName = @Employee OR @Employee='All') --the employee
            */
        )) ttt
ORDER BY    
            CASE WHEN @SortExpression='Software' AND @SortOrder=0 THEN Software END ASC,
            CASE WHEN @SortExpression='Software' AND @SortOrder=1 THEN Software END DESC

由于我们的设置，此查询必须包含链接服务器。只要我注释掉我的员工参数，查询就会运行良好且快速，即此部分：

--Employee filters
                /*AND ((l.Inactive=@Status) OR (@Status=2)) --status of employee 2 is all, 1 is inactive, and 0 is active

                AND (@Type='All' OR (@Type='Contractor' AND l.IsContractor=1) OR (@Type='Regular' AND l.IsContractor=0))    --contractor or regular employee
                AND (@Site='All' OR @Site=l.ClientID)   --the site
                AND (@Department='All' OR @Department=l.FunctionalGroupID)  --the department
                AND ((l.Manager = @Manager OR l.FullName=@Manager) OR @Manager='All')   --the manager
                AND (l.FullName = @Employee OR @Employee='All') --the employee
                */

当我把那一节的第一行也带进来的时候，比如说这一行：

和（（l.Inactive=@Status）或（@Status=2））

整个存储过程将挂起（超时）…我已经为我的表建立了正确的索引，甚至在链接表中的

Inactive

字段上有一个索引…如果我在上面的同一行中说：

和（l.Inactive=0）

---

它运行正常，因此OR条件导致了它（布尔值）。但是，我需要这个条件，因为传递了一个需要满足的参数。如果开始…使用所有这些参数，我还需要

哪些选项？这似乎很麻烦……对于任何人的信息来说，AssetProgram表总共有5万行，所以这并不算太多。
是的，您的where子句很疯狂，尤其是所有的“OR”都很疯狂

尝试根据@Status变量将“用户”加载到临时表（或var表）中（如果为1，则只加载非活动项；如果为0，则只加载活动项等等），并在连接上使用临时表，这将大大减少比较次数。
检查查询计划。我打赌ORs会导致索引扫描而不是seeksI尝试了这样做……
如果（@Status=0）开始插入到#用户（LoginID，不活动）选择LoginID，不活动从[TKKAH-SQL-1].tkkkcommondata.dbo.Login l其中（l.Inactive=0，l.HireDate不为NULL）如果（@Status=1）开始插入到#用户（LoginID，不活动）从[TKKAH-SQL-1]中选择LoginID，不活动。TKKCommonData.dbo.Login l其中（l.Inactive=1且l.HireDate不为NULL）结束，否则开始插入到#用户（LoginID，不活动）中选择LoginID，不活动从[TKKAH-SQL-1]。TKKComonData.dbo.Login l其中（l.HireDate不为NULL）结束
，但结果是我仍然需要这个…
(（l.Inactive=@Status）或（@Status=2））
如果我不包括
和
查询总是返回相同的软件标题…可能是因为它是左连接…错误