数据库常用语法

1.健表

CREATE TABLE [dbo].[CoreType]

(

[CoreTypeID] [int] NOT NULL IDENTITY(1, 1),

[Description] [varchar] (50) NOT NULL

) ON [PRIMARY]

2.修改列名

ALTER TABLE [dbo].[AccountReconciliationWorksheet]

      ALTER COLUMN [ClearedDeposits] [decimal](19, 4) NULL

3.插入数据

SET IDENTITY_INSERT [dbo].[CabType] ON

--insert some data

SET IDENTITY_INSERT [dbo].[CabType] OFF

4.case when 、 isnull 、cast

CASE

    WHEN ISNULL(QC1.CommittedRecords, 0) + ISNULL(QC2.CommittedRecords, 0) > 0 THEN CAST(1 AS BIT)

    ELSE CAST (0 AS BIT)

END AS HasCommittedQuantity,



CASE

  WHEN ID.BinLocationID Is NULL

  THEN ID.BinLocation

  WHEN (SELECT TOP 1 ValidatedBinLocation FROM Enterprise)=1

  THEN BL.BinLocation

  ELSE ID.BinLocation

END as BinLocation,

5 函数的使用

dbo.fnGB_GBL_GetUserName(WS.AddUserID) AS AddUser, 



CREATE FUNCTION dbo.fnGB_CON_GetPrimaryContactID(

@EntityType varchar(50)

)  

RETURNS TABLE

AS

/*********************************************************************************************************************

This function returns the PrimaryContactIDs for entity type passed in.



*********************************************************************************************************************/

RETURN

SELECT 

CON.EntityID,

CON.ContactID PrimaryContactID

FROM Contact CON

INNER JOIN EntityType ET ON

CON.EntityTypeID = ET.EntityTypeID

WHERE ET.[Description] = @EntityType

AND CON.SetDefault = 1

CREATE FUNCTION [dbo].[fnGB_GBL_BitToYesNo]

(

    @BitVal BIT

)

RETURNS NCHAR

AS



/*

    DESCRIPTION

    This function translates 1 to 'Y' and 0 to 'N'.



    MODIFICATION HISTORY

    2006-09-26    Phillip Koebbe

        - Created.

*/



BEGIN

    DECLARE

        @Char NCHAR

    

    IF @BitVal = 1

        SET @Char = 'Y'

    ELSE

        SET @Char = 'N'



    RETURN @Char

END

 

6.存储过程

CREATE PROCEDURE [dbo].[spSM_POR_GetOpenLPOAmount]

    @UnitInventoryID int

AS



    select isnull(sum(ExpectedAmount) ,0)

    from LocalPurchaseOrder 

    where UnitInventoryID = @UnitInventoryID and PurchasingStatusID = 2



CREATE PROCEDURE [dbo].[spSV_WAR_GetTaskComments]

@RepairOrderTaskID int

AS



/*********************************************************************************************************

DESCRIPTION

This procedure retrieves the complaint, cause, and correction comments for the selected RepairOrderTaskID



MODIFICATION HISTORY

2006-12-11    Dave Campbell

    - Created.

2007-01-29    Dave Campbell

    - Renamed to be non-OEM specific.

2010-04-15    Dave Campbell (CFS 1040526)

    - Split into separate SELECT statements so that text from multiple 

      entity comment records can be concatenated, if necessary.

 

--------------------------

RETURNS:

-------------------------

A recordset containing the complaint, cause, and correction comments for the selected RepairOrderTaskID



**********************************************************************************************************/



SET NOCOUNT ON



BEGIN



DECLARE @Complaint varchar(7500),

        @Cause varchar(7500),

        @Correction varchar(7500)



SELECT @Complaint = 

    CASE 

        WHEN @Complaint IS NULL THEN Comment

        ELSE @Complaint + CHAR(13) + CHAR(10) + Comment

    END

FROM dbo.EntityComment EC1 

INNER JOIN dbo.Comment C1 ON EC1.CommentID = C1.CommentID 

WHERE EC1.EntityID = @RepairOrderTaskID AND EC1.CommentTablesID = 32



SELECT @Cause = 

    CASE 

        WHEN @Cause IS NULL THEN Comment

        ELSE @Cause + CHAR(13) + CHAR(10) + Comment

    END

FROM dbo.EntityComment EC1 

INNER JOIN dbo.Comment C1 ON EC1.CommentID = C1.CommentID 

WHERE EC1.EntityID = @RepairOrderTaskID AND EC1.CommentTablesID = 31



SELECT @Correction = 

    CASE 

        WHEN @Correction IS NULL THEN Comment

        ELSE @Correction + CHAR(13) + CHAR(10) + Comment

    END

FROM dbo.EntityComment EC1 

INNER JOIN dbo.Comment C1 ON EC1.CommentID = C1.CommentID 

WHERE EC1.EntityID = @RepairOrderTaskID AND EC1.CommentTablesID = 33



SELECT 

    ISNULL(@Complaint, '') AS Complaint,

    ISNULL(@Cause, '') AS Cause,

    ISNULL(@Correction, '') AS Correction



END



SET NOCOUNT OFF

 

7.临时表

-- ================================================

-- Template generated from Template Explorer using:

-- Create Procedure (New Menu).SQL

--

-- Use the Specify Values for Template Parameters 

-- command (Ctrl-Shift-M) to fill in the parameter 

-- values below.

--

-- This block of comments will not be included in

-- the definition of the procedure.

-- ================================================

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

-- =============================================

-- Author:        Jimmy

-- Create date: 2011-11-22

-- Description:    <all available branches that the user privilieges>

-- =============================================

create PROCEDURE spIN_PIN_GetUserPriviegesBranch

    -- Add the parameters for the stored procedure here

    @userLoginID int

AS

BEGIN

    -- SET NOCOUNT ON added to prevent extra result sets from

    -- interfering with SELECT statements.

    SET NOCOUNT ON;



    -- Insert statements for procedure here

    --SELECT <@Param1, sysname, @p1>, <@Param2, sysname, @p2>

    

    declare @adminDivision bit,@adminCompany bit,@adminEnterprise bit,@branchID int

    

    DECLARE @branchs TABLE (

 RowID int IDENTITY(1, 1), 

 BranchID int,

 BranchCode varchar(50),

 DivisionID int,

 CompanyID int ,

 EnterpriseID int

)

    



INSERT INTO @branchs (BranchID, BranchCode, DivisionID,CompanyID,EnterpriseID)

    select  

            Branch.BranchID, 

            Branch.BranchCode,

            Branch.DivisionID,

            Company.CompanyID,

            Enterprise.EnterpriseID

        from Branch 

        left join Division  on Division.DivisionID=Branch.DivisionID

        left join Company   on Company.CompanyID=Division.CompanyID

        left join Enterprise on Enterprise.EnterpriseID=Company.EnterpriseID

        WHERE Branch.Inactive = 0 

    

    select 

        @adminDivision=IsAdminBranchDivision,

        @adminCompany=IsAdminBranchCompany,

        @adminEnterprise=IsAdminBranchEnterprise,

        @branchID=UserLogin.BranchID

    from UserLogin 

    where UserLoginID=@userLoginID--

    



    if @adminEnterprise=1 

        begin

        declare @enterpriseID int

        select @enterpriseID=EnterpriseID from @branchs where BranchID=@branchID

        select BranchID,BranchCode from @branchs where EnterpriseID=@enterpriseID

        end

    else if @adminCompany=1

        begin

            declare @companyID int

            select @companyID=CompanyID from @branchs where BranchID=@branchID

            select BranchID,BranchCode from @branchs where CompanyID=@companyID

        end

     else if @adminDivision=1

        begin

            declare @division int

            select @division=DivisionID from @branchs where BranchID=@branchID

            select BranchID,BranchCode from @branchs where DivisionID=@division

        end

    else

         select BranchID,BranchCode from @branchs where BranchID=@branchID

    

END

GO