Bancos de dadosPlanet PostgreSQL
Bancos de dados
Recently, a new type of question has entered the database arena: what did this data look like last Tuesday? Maybe it's the price of a product before the holiday sale kicked in, or which department an employee belonged to before that reorg…
A NOT IN query can return the wrong answer without telling you. It is valid SQL, it runs without an error, and it hands back a perfectly well-formed result set that happens to be empty when it should not be. No warning, no hint, nothing in…
Force the use of the partition key and protect your PostgreSQL server from full partition scans
PostgreSQL's table access method interface lets you plug in alternative storage engines.