How to judge whether an SQL statement is a query or execution

xiao zhongshuai 176 Reputation points

How to judge whether an SQL statement is SELECT or UPDATE/DELETE/...?

How to develop a tool similar to SSMS?

A Microsoft extension to the ANSI SQL language that includes procedural programming, local variables, and various support functions.
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  1. Viorel 114K Reputation points

    For an example of SSMS alternative, see

    In order to determine if a script return data like a SELECT query, I think that you can try something like this:

    declare @text as nvarchar(max) = 'declare @x int = 123; select @x'
    select * from sys.dm_exec_describe_first_result_set( @text, null, 0)

    If this special function returns rows, then the checked script returns data.

    In case of DELETE, for example, nothing is returned:

    set @text = 'delete from Users'
    select * from sys.dm_exec_describe_first_result_set( @text, null, 0)

    However, an SQL script could include several kinds of statements, calls of stored procedures, etc.

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  1. EchoLiu-MSFT 14,576 Reputation points

    Hi @xiao zhongshuai ,

    Simply put, SELECT/UPDATE/DELETE statements start with SELECT/UPDATE/DELETE respectively. You can intuitively determine whether a piece of code is a SELECT, UPDATE, or DELETE statement.
    For example, the following code is a SELECT statement:

        SELECT FirstName, LastName, StartDate AS FirstDay    
        FROM DimEmployee     
        WHERE EndDate IS NOT NULL     
        AND MaritalStatus = 'M'    
        ORDER BY LastName;  

    UPDATE statement:

    UPDATE dbo.Table1     
        SET c2 = c2 + d2     
        FROM dbo.Table2     
        WHERE CURRENT OF abc;    
        SELECT c1, c2 FROM dbo.Table1;    

    DELETE statement:

        DELETE Production.ProductCostHistory    
        WHERE StandardCost BETWEEN 12.00 AND 14.00    
              AND EndDate IS NULL;    
        PRINT 'Number of rows deleted is ' + CAST(@@ROWCOUNT as char(3));  

    Sorry,I don’t know much about development tools. You can find professional forums for help.

    If you have any question, please feel free to let me know.


    If the answer is helpful, please click "Accept Answer" and upvote it.

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