Database SQL standards
By thavaa on Apr 24, 2008
National Institute of Standards and Technology (NIST) used to develop SQL conformance tests. NIST stopped developing SQL conformance tests since 1996. You can download the conformance test for SQL-92 from their SQL Test Suite Download page
Currently there is no international body which has developed conformance test for the latest standards SQL:1999 and SQL:2003. Neverthless, it pays to understand the history and high level understanding of the spec, if you are in the business of developing database or writing non-trivial database applications.
Here is the latest SQL:2008 draft standard if you like to take a look.
Here are some more interesting links :