哦，CRUD！

SQL Server 中的函数与存储过程编写

Meghan Kwartler

IT Consultant

为何用存储过程做 CRUD？

将 SQL 代码与其他应用层解耦

第 3 章 N 层架构

为何用存储过程做 CRUD？

将 SQL 代码与其他应用层解耦
加强安全性

第 3 章 N 层架构

为何用存储过程做 CRUD？

将 SQL 代码与其他应用层解耦
加强安全性
提升性能

第 3 章 N 层架构

C 代表 CREATE

CREATE PROCEDURE dbo.cusp_TripSummaryCreate (
  @TripDate as date, 
  @TripHours as numeric(18, 0)
) AS BEGIN INSERT INTO dbo.TripSummary(Date, TripHours) 
VALUES 
  (@TripDate, @TripHours) 
SELECT Date, TripHours 
FROM dbo.TripSummary 
WHERE Date = @TripDate END

R 代表 READ

CREATE PROCEDURE cusp_TripSummaryRead
    (@TripDate as date)
AS
BEGIN
SELECT Date, TripHours
FROM TripSummary
WHERE Date = @TripDate
END;

U 代表 UPDATE

CREATE PROCEDURE dbo.cusp_TripSummaryUpdate
    (@TripDate as date,
    @TripHours as numeric(18,0))
AS
BEGIN
UPDATE dbo.TripSummary
SET Date = @TripDate,
    TripHours = @TripHours
WHERE Date = @TripDate
END;

D 代表 DELETE

CREATE PROCEDURE cusp_TripSummaryDelete
    (@TripDate as date, 
     @RowCountOut int OUTPUT)
AS
BEGIN
DELETE
FROM TripSummary
WHERE Date = @TripDate

SET @RowCountOut = @@ROWCOUNT
END;

轮到您做 CRUD！

SQL Server 中的函数与存储过程编写