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14.6. Commonly Seen DB2 Executables
When you are running DB2, you will also see some additional executables on your server. Table 14.5 lists these.
| Process Name | Description | Applicability |
|---|---|---|
| db2 | The DB2 Command Line Processor (CLP) foreground process. It is the interactive component of the DB2 CLP and parses DB2 commands and SQL statements.This front-end/back-end configuration does have some advantages for command line performance: The front-end handles the connection to the user, and the back-end interfaces with the database.You can use CTRL+C/CTRL+Break to stop processing (i.e., when too many records are returned) without killing the connection to the database. | All |
| db2bp | The persistent background process for the DB2 CLP; it is the process that actually connects to the database.Since the DB2 CLP allows OS as well as DB2 commands/statements, this background process is required. | All |
| db2cmd | Similar to the db2 executable, but for Windows. Invokes a Windows command window. On Windows, parent threads cannot terminate their child processes when they are terminated. The DB2 CLP has a front-end and back-end process/thread; a cookie (launched from DB2CMD.EXE) ties these threads together on Windows so that the back-end process is terminated if the user exits or kills the front-end process. | Windows only |
| db2start | User command to start up the DB2 engine. | All |
| db2star2 | The real db2start program. | All |
| db2stop | User command to stop the DB2 engine. | All |
| db2stop2 | The real db2stop program. | All |
