SQL Server 2014存储过程很慢

Question

我有一个存储过程来计算收据，直到今天我对它没有任何问题，直到必须在具有100000行的数据库中执行它为止。 它太慢了，至少要运行3个小时，并且尚未完成。

有没有办法对此进行优化？

这里的代码：

Declare @sousTotal numeric(16,2),
    @TotalTx1 numeric(18,4),
    @TotalTx2 numeric(18,4),
    @TotalTx3 numeric(18,4),
    @Taux1 numeric(18,4),
    @Taux2 numeric(18,4),
    @Taux3 numeric(18,4),
    @totalEscompte numeric(16,2),
    @totalFacture numeric(16,2),
    @MontantPaiement numeric(16,2)
Begin
BEGIN TRANSACTION;

BEGIN TRY

    select top 1 @Taux1 = TauxTaxe1,@Taux2 = TauxTaxe2  ,@Taux3 = TauxTaxe3 from tbFactureEntete where ID = @IdFacture and IDCompagnie = @IDCie 
      select @sousTotal =sum(sousTotal),@TotalTx1 = sum(totalTx1),@TotalTx2 = sum(totalTx2),@TotalTx3 = sum(totalTx3),
    @totalEscompte = sum(totalEscompte ),@totalFacture = sum(totalFacture)    from(
    select  SUM(isnull(A.TotalLigne,0)) AS sousTotal   ,
    case taxe1 when  0 then 0
                 when  1 then SUM(isnull(A.TotalLigne,0)) * @Taux1 / 100
                 end AS totalTx1,
    case taxe2 when 0 then 0
                 when 1 then SUM(isnull(A.TotalLigne,0)) * @Taux2 / 100
                 end AS totalTx2,
    case taxe3 when 0 then 0
                 when 1 then SUM(isnull(A.TotalLigne,0)) * @Taux3 / 100
                 end AS totalTx3,                                
     sum(isnull(MontantEscompte,0))  as totalEscompte ,sum(isnull(TotalLigne,0)) + case taxe1 when  0 then 0
                 when  1 then SUM(isnull(A.TotalLigne,0)) * @Taux1 / 100
                 end +
    case taxe2 when 0 then 0
                 when 1 then SUM(isnull(A.TotalLigne,0)) * @Taux2 / 100
                 end +
    case taxe3 when 0 then 0
                 when 1 then SUM(isnull(A.TotalLigne,0)) * @Taux3 / 100
                 end as totalFacture
    from tbfactureDetail A
    where IdFacture = @IdFacture  and A.IDCompagnie = @IDCie 
    group by taxe1,taxe2,taxe3) as AA

    select @MontantPaiement = SUM(MontantPaiement) from tbFacturePaiement 
    where IdFacture = @IdFacture 

    update tbFactureEntete 
    set Total_AvantTaxe = @sousTotal,
        totalTaxe1 = @TotalTx1, 
        totalTaxe2 = @TotalTx2,
        totalTaxe3 = @TotalTx3, 
        TotalEscompte = isnull(@totalEscompte,0), 
        TotalFacture = isnull(@totalFacture,0),
        TotalPaiementCR = isnull(@MontantPaiement,0) ,
        TotalSolde = isnull(@totalFacture,0) - isnull(@MontantPaiement,0) 
    where ID = @IdFacture and IDCompagnie = @IDCie




END TRY
BEGIN CATCH
    SELECT 
        ERROR_NUMBER() AS ErrorNumber
        ,ERROR_SEVERITY() AS ErrorSeverity
        ,ERROR_STATE() AS ErrorState
        ,ERROR_PROCEDURE() AS ErrorProcedure
        ,ERROR_LINE() AS ErrorLine
        ,ERROR_MESSAGE() AS ErrorMessage;

    IF @@TRANCOUNT > 0
        ROLLBACK TRANSACTION;
END CATCH;

IF @@TRANCOUNT > 0
    COMMIT TRANSACTION;
return
End

再次感谢！！

Answer 1

根据表tbfactureDetail中的IdFacture和IDCompagnie的基数，如果缺少索引，则索引会有所帮助。

如果IDFacture的许多不同值的IdCompagnie有许多不同的值

CREATE NONCLUSTERED INDEX IX_NewIdx_Name
  ON tbfactureDetail (IdFacture,IdCompagnie)

如果每个IDfacture的IdCompagnie相对较少，则可以使用Include。

CREATE NONCLUSTERED INDEX IX_NewIdx_Name
ON tbfactureDetail (IdFacture)
INCLUDE (IdCompagnie)

我认为这在数学上是相同的，并且对于代码而言更为理想。

BEGIN TRY

select top 1 @Taux1 = TauxTaxe1
,            @Taux2 = TauxTaxe2
,            @Taux3 = TauxTaxe3
from tbFactureEntete
where ID = @IdFacture and IDCompagnie = @IDCie


select @sousTotal =sum(isnull(A.TotalLigne,0))
,      @TotalTx1 = sum(taxe1 * isnull(A.TotalLigne,0) * @Taux1 / 100)
,      @TotalTx2 = sum(taxe2 * isnull(A.TotalLigne,0) * @Taux2 / 100)
,      @TotalTx3 = sum(taxe3 * isnull(A.TotalLigne,0) * @Taux3 / 100)
,      @totalEscompte = sum(isnull(MontantEscompte,0) )
,      @totalFacture = 
 sum(taxe1 * isnull(A.TotalLigne,0) * @Taux1 / 100) +
 sum(taxe2 * isnull(A.TotalLigne,0) * @Taux2 / 100) +
 sum(taxe3 * isnull(A.TotalLigne,0) * @Taux3 / 100)
from tbfactureDetail A
where IdFacture = @IdFacture and A.IDCompagnie = @IDCie


select @MontantPaiement = SUM(MontantPaiement)
from tbFacturePaiement
where IdFacture = @IdFacture

update tbFactureEntete
set Total_AvantTaxe = @sousTotal
,   totalTaxe1      = @TotalTx1
,   totalTaxe2      = @TotalTx2
,   totalTaxe3      = @TotalTx3
,   TotalEscompte   = isnull(@totalEscompte,0)
,   TotalFacture    = isnull(@totalFacture,0)
,   TotalPaiementCR = isnull(@MontantPaiement,0)
,   TotalSolde      = isnull(@totalFacture,0) - isnull(@MontantPaiement,0)
where ID = @IdFacture and IDCompagnie = @IDCie
END TRY