Restarts a database that has been abnormally terminated and left in an inconsistent state. At the successful completion of RESTART DATABASE, the application remains connected to the database if the user has CONNECT privilege.
Scope
This command affects only the node on which it is executed.
Authorization
None
Required Connection
This command establishes a database connection.
Command Syntax
>>-RESTART----+-DATABASE-+--database-alias---------------------->
'-DB-------'
>-----+---------------------------------------+----------------><
'-USER--username--+------------------+--'
'-USING--password--'
|
Command Parameters
Usage Notes
Execute this command if an attempt to connect to a database returns an error message, indicating that the database must be restarted. This action occurs only if the previous session with this database terminated abnormally (due to power failure, for example).
At the completion of RESTART DATABASE, a shared connection to the database is maintained if the user has CONNECT privilege, and an SQL warning is issued if any indoubt transactions exist. In this case, the database is still usable, but if the indoubt transactions are not resolved before the last connection to the database is dropped, another RESTART DATABASE must be issued before the database can be used again. Use LIST INDOUBT TRANSACTIONS to generate a list of indoubt transactions. For more information about indoubt transactions, see the Administration Guide.
If the database is only restarted on a single node within an MPP system, a message may be returned on a subsequent database query indicating that the database needs to be restarted. This occurs because the database partition on a node on which the query depends must also be restarted. Restarting the database on all nodes solves the problem.
See Also
CONNECT TO statement in the SQL Reference.