MySQL: determine which database is selected?

Question

After calling mysql_select_db to grab a database, is there any way to later output the name of the database that is currently selected? This seems very basic bu

Answer 1

You can always use STATUS command to get to know Current database & Current User

Answer 2

SELECT DATABASE();

p.s. I didn't want to take the liberty of modifying @cwallenpoole's answer to reflect the fact that this is a MySQL question and not an Oracle question and doesn't need DUAL.

Answer 3

SELECT DATABASE() worked in PHPMyAdmin.

Answer 4

Another way for filtering the database with specific word.

SHOW DATABASES WHERE `Database` LIKE '<yourDatabasePrefixHere>%'
or
SHOW DATABASES LIKE '<yourDatabasePrefixHere>%';

Example:

SHOW DATABASES WHERE `Database` LIKE 'foobar%'
foobar_animal
foobar_humans_gender
foobar_objects

Answer 5

In the comments of http://www.php.net/manual/de/function.mysql-db-name.php I found this one from ericpp % bigfoot.com:

If you just need the current database name, you can use MySQL's SELECT DATABASE() command:

<?php
function mysql_current_db() {
    $r = mysql_query("SELECT DATABASE()") or die(mysql_error());
    return mysql_result($r,0);
}
?>

Answer 6

@mysql_result(mysql_query("SELECT DATABASE();"),0)

If no database selected, or there is no connection it returns NULL otherwise the name of the selected database.