If you want to have an English Ubuntu UI, but still see dates, money amounts, paper formats, etc. in German...

When storing floating-point numbers such as prices or totals in an SQL database, always use a DECIMAL column. Never...

Note: For PostgreSQL you should use advisory locks. For MySQL we still recommend the solution in this card.

CONCAT('foo', 'bar', NULL) = NULL the NULL always wins in MySQL. If you would rather treat NULL as...