Persistent database connection

[nancyphilips]

Can one use persistent database connection under all circumstances? I want to know the disadvantages associated with the persistent database connection

[fred]

No persistent database connection make the connection to remain on always without disconnecting and so is recommended only in case of its need namely when there are many users or programmers using the application and so on

[bmasurekar]

Persistent database connection to which database 'n for which application? Disadvantages may be :
Some system resources remain permantly blocked to maintain the connection.

In some cases the persistent connection may be used by some unwanted mallicious programs which is highly undesirable.

[nancyphilips]

Persistent database connection for PHP application using mysql database. I could understand the basic concept of Persistent database connection from the discussion given. Any more inputs on this are welcomed.