TAILIEUCHUNG - Oracle Unleashed- P5

Oracle Unleashed- P5: When I first started using Oracle many years ago, it was possible to know the database and the tools available. With the rash of recent releases of different options for the database and the spate of new tools, only people who wear their underpants over their trousers will be able to know everything there is to know about the Oracle products. | CONNECT INTERNAL CONNECT SYSTEM MANAGER CONNECT SCOTT TIGER DISCONNECT Description You use the DISCONNECT command to disconnect from the current instance without exiting SQL DBA. It has no additional parameters. You can use this command in conjunction with SET INSTANCE to access multiple instances at your site without exiting and reentering SQL DBA. Command syntax DISCONNECT Example DISCONNECT EXECUTE Description You use EXECUTE to execute a one-line PL SQL statement. If you want to execute more than one line you must use the BEGIN . . . END format for PL SQL. You must also be connected to a database before executing. Command syntax EXECUTE PL SQL statement Example EXECUTE total_orders EXIT Description EXIT is the command you use to exit the SQL DBA session. It automatically disconnects you from the current database if a connection has been established. This command has no parameters or keywords. Command syntax EXIT Example EXIT HOST Description The HOST command executes an operating system command or program while you re still in SQL DBA. This command shells you out of SQL DBA for the duration of the command. If issued by itself it shells you to the Please purchase PDF Split-Merge on to remove this watermark. operating system until you type EXIT to return to SQL DBA. Command syntax HOST operating system command HOST Keywords operating system command A valid operating system command or program. Examples HOST who HOST dir HOST MONITOR Description The MONITOR command enables you to monitor various statistics and attributes of the database processes or users. This command is extremely helpful in analyzing and resolving database problems. You can specify any parameters that the menu requests in order on the command line. Command syntax MONITOR CIRCUIT DISPATCHER FILEIO LATCH LCACHE LOCK PROCESS QUEUE ROLLBACK SESSION SESSIONSTATISTIC SHARED SQLAREA Please purchase PDF Split-Merge on to remove this watermark. SYSTEMIO SYSTEMSTATISTIC .

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