Release 10.1A: OpenEdge Data Management:
Database Administration

> ## PROLOG utility

> Truncates the log file.

> #### Syntax

> `prolog` `db-name` [`-online` ]

> #### Parameters

> ``db-name``

> Specifies the database log you want to truncate. Do not include the `.db` suffix.

> `-online`

> Specifies that the database whose log is being truncated is currently online.

> #### Notes

> - If you want to save the log file, use operating system utilities to back it up before using PROLOG.

> - See Chapter 16, "Logged Data," for more information about log files.

> - PROLOG supports the use of internationalization startup parameters such as `-cpinternal` `codepage``` and `-cpstream` `codepage`. See Chapter 18, "Database Startup Parameters," for a description of each database-related internationalization startup parameter.

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