Ways to validate T-SQL queries?

Question

I have access to an Access database and within that database are fields filled with TSQL queries. These queries are processed by T-SQL on a server. So when I write these SQL

Answer 1

Actually, a combination of MattMc3's answer and FremenFreedom's answer should work.

Download SQL Express.

Then, declare the following stored procedure:

create procedure IsValidSQL (@sql varchar(max)) as
begin
    begin try
        set @sql = 'set parseonly on;'+@sql;
        exec(@sql);
    end try
    begin catch
        return(1);
    end catch;
    return(0);
end; -- IsValidSQL

You can test it with:

declare @retval int;
exec @retval = IsValidSQL 'select iif(val, 0, 1) from t';
select @retval

or with:

declare @retval int;
exec @retval = IsValidSQL 'select val from t';
select @retval

Note: this will catch the IIF() issue. It will not catch anything related to the table structures or column structures. You would need the schema for that and a slightly different approach ("select top 0 * from () t") woudl do it.

You might be able to do something with SQL Fiddle online. However, I would suggest having a local copy of the database.