Question

我编写了这个检查某些条件的过程，然后根据数据运行INSERT或UPDATE。但是，由于某种原因，INSERT不会执行。

IF @sid = ''
    BEGIN
        INSERT INTO Book_Art (Sub_ID, Art_IDs, P_ID) VALUES (@Sub_ID,@art_id,@P_ID)
    END
ELSE IF @aids = ''
    BEGIN
        SET @comma = ''
        UPDATE Book_Art SET Art_IDs = + @aids + @comma + @art_id WHERE Sub_ID =  @Sub_ID AND P_ID = @P_ID
    END
ELSE
    BEGIN
        SET @comma = ','
        UPDATE Book_Art SET Art_IDs = + @aids + @comma + @art_id WHERE Sub_ID =  @Sub_ID AND P_ID = @P_ID
    END
END

Answer 1

取代以下内容：

IF @sid = ''

使用：

IF @sid is null

INSERT INTO在存储过程中不起作用

1 个答案: