sql基础_标准建表格式

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-----------建表-----------------
IF OBJECT_ID ('SysUser', 'U') IS NULL
   BEGIN
      CREATE TABLE [dbo].[SysUser]
      (
         [Id]                     BIGINT IDENTITY (1, 1) NOT NULL, --主键用Id,整型,自增
         [Name]                   NVARCHAR (32) NOT NULL,
         [PhoneNumber]            NVARCHAR (32) NOT NULL,
         [Password]               NVARCHAR (128) NOT NULL,
         [UserName]               NVARCHAR (256) NOT NULL,
         [CreationTime]           DATETIME NOT NULL,
         [CreatorUserId]          BIGINT NULL,
         [LastLoginTime]          DATETIME NULL,
         [LastModificationTime]   DATETIME NULL,
         [LastModifierUserId]     BIGINT NULL,
         [IsDeleted]              BIT NOT NULL,
         [DeleterUserId]          BIGINT NULL,
         [DeletionTime]           DATETIME NULL,
         [IsActive]               BIT NOT NULL
      );

      --添加聚集索引,根据业务仔细设定
      CREATE CLUSTERED INDEX IX_SysUser_CreationTime
         ON SysUser (CreationTime);

      --添加非聚集索引
      CREATE NONCLUSTERED INDEX IX_SysUser_CreatorUserId
         ON SysUser (CreatorUserId);

      --添加默认值
      ALTER TABLE SysUser  ADD CONSTRAINT DF_SysUser_CreationTime DEFAULT GetDate() FOR CreationTime

      --添加主键
      ALTER TABLE SysUser ADD CONSTRAINT PK_SysUser   PRIMARY KEY (Id);
   END
GO

--主键用Id,整型,自增; 视业务用Int或者BigInt
--业务允许时,字段尽量设置为not null,null值用空字符串代替


-----------修改表------------------
--新增字段
If Col_Length('Bas_Student','id') Is Null
Begin
  Alter Table Bas_Student Add id Int IDENTITY(1,1) not Null
End
Go


--删除旧主键
IF EXISTS
     (SELECT *
      FROM   SYSINDEXES
      WHERE  NAME = 'PK_WMS_INV_MATERIALSTORER')
      ALTER TABLE Wms_Inv_MaterialStorer DROP CONSTRAINT PK_WMS_INV_MATERIALSTORER

--添加新主键
ALTER TABLE Wms_Inv_MaterialStorer
ADD CONSTRAINT PK_WMS_INV_MATERIALSTORER
PRIMARY KEY (CompanyID, StockID, StorerID, MaterialID, SizeID );

--添加唯一索引,来源单号
CREATE UNIQUE INDEX UI_EWS_Out_OrderMaster
  ON EWS_Out_OrderMaster(CompanyID, StockID, ExtTradeId)

-----------建视图-----------------
--删除对象
IF OBJECT_ID('vwStudent', 'V') IS NOT NULL
  DROP VIEW [vwStudent]
GO

--仓储作业往来单位
--Select * From vwStudent
CREATE VIEW [vwStudent]
AS
  SELECT CompanyID, StockID ConsigneeID, StockName AS ConsigneeName,
  CONVERT(INT, 1) AS ConsigneeType, Address, TelPhone
  FROM   Bas_Stock
 
GO

-----------对象是否存在判断-------------
--存储过程
IF OBJECT_ID('spWMS_XXXXX','P') IS NOT NULL 
  DROP PROCEDURE [dbo].[spWMS_XXXXX]
GO 

--视图
IF OBJECT_ID('vwWMS_XXXXX', 'V') IS NOT NULL 
  DROP VIEW [dbo].[vwWMS_XXXXX]
GO 

--临时表
IF OBJECT_ID('tempdb..#XXXXX') IS NOT NULL 
DROP TABLE #XXXXX

------------调试模版-----------------
BEGIN TRY
  BEGIN TRAN


  ROLLBACK TRAN
END TRY
BEGIN CATCH
  SELECT ERROR_MESSAGE();
  ROLLBACK TRAN
END CATCH