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如何创建存储过程以根据 Id 和 Name 参数更新 Std_Course 的列,或者如果 Id 和 Name 不存在则插入新行

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尝试这样的事情:

CREATE PROCEDURE dbo.proc_InsertOrUpdate
    @ID INT, @Name VARCHAR(50), @StdCourse INT
AS 

    IF EXISTS (SELECT * FROM dbo.YourTable WHERE ID = @ID AND Name = @Name)

        UPDATE dbo.YourTable
        SET Std_course = @StdCourse
        WHERE ID = @ID AND Name = @Name

    ELSE    

        INSERT INTO dbo.YourTable(ID, Name, Std_Course)
        VALUES(@ID, @Name, @StdCourse

更新:由于您使用的是 SQL Server 2008,因此您还可以使用简单的MERGE语句 - 直接“内联”或在存储过程中。它看起来像这样:

CREATE PROCEDURE dbo.proc_InsertOrUpdate
    @ID INT, @Name VARCHAR(50), @StdCourse INT
AS 
    MERGE dbo.YourTable AS t
    USING (SELECT @ID, @Name, @StdCourse) AS Source(ID, NAME, Std_Course) 
    ON source.ID = t.ID AND source.Name = t.Name

    WHEN MATCHED THEN
        UPDATE SET Std_Course = @StdCourse

    WHEN NOT MATCHED THEN
        INSERT(ID, Name, Std_Course)
        VALUES(source.ID, source.Name, source.Std_Course);
于 2012-06-18T07:24:30.057 回答