Dear Experts.

Where can I get Standard SQL language that applies on all the DBMS.
I have problem when I write SQL for MS SQL Server when I doesn't run in MySQL. Like when I run " where first_name + last_name = cVariable" it works on MS SQL Server but doesn't work on MySQL. MySQL accepts " where first_name = cVariable1 AND last_name = cVariable2"

Any suggestions?

Thank in advance.