如何将word文档转换为perl中的pdf文件？(How to convert word document to pdf file in perl? [closed])

 我认为以下功能可以更好地满足要求 
 
CREATE FUNCTION fn_CompareDate(@ID VARCHAR(10))
RETURNS DATETIME
AS 
BEGIN   
    DECLARE @maxDate DATETIME;
    SELECT @maxDate =
    (SELECT Max(v) 
    FROM (VALUES (COLUMN1), (COLUMN2), (COLUMN3)) AS value(v)) 
    FROM table 
    WHERE ID = @ID

    RETURN @maxDate;
END;
 
 现在运行以下查询 
 
select dbo.fn_CompareDate(ID) from table where ID = 1
 
 希望你明白了。 

I think the below Function serves requirment better
 
CREATE FUNCTION fn_CompareDate(@ID VARCHAR(10))
RETURNS DATETIME
AS 
BEGIN   
    DECLARE @maxDate DATETIME;
    SELECT @maxDate =
    (SELECT Max(v) 
    FROM (VALUES (COLUMN1), (COLUMN2), (COLUMN3)) AS value(v)) 
    FROM table 
    WHERE ID = @ID

    RETURN @maxDate;
END;
 
Now run the below query
 
select dbo.fn_CompareDate(ID) from table where ID = 1
 
Hope you got it.