Check if DBM files can be moved cross platform easily.
Add a DISTINCT keyword to SELECT
DELETE * FROM syntax
DROP Database syntax
Brackets around WHERE clause statements
Need to be fussy about is NULL rather than = NULL ?
Need to write an ORDER BY test
Need to write a WHERE test
Need to write an incorrect values test
Creating tables and then selecting * is producing them in the wrong order.
Support for BINARY and UNKNOWN fields.
Change UNIQUE and DEFAULT behaviour
Check the accepted ranges of Date, Datetime and Time fields