This file contains more detail than the Alert Log. Notice that I said files because the database contains one important Alert Log regardless of the size of the information it contains.

Therefore, the database administrator may delete the data that is not needed periodically, or they may delete the file and Oracle will recreate it from scratch.

However, the database may contain a number of Background Trace Files, allowing the database administrator to specify the size of the Trace File before creating a new Trace File.

This is to ensure that we do not exceed the size of the Trace File.

The Background Trace Files are located in the Background_dump_dest path, just like the Alert Log.

The database administrator can control the Trace File by specifying the storage location of the Trace Files through the variable Background_Dump_Dest.

As I mentioned, this variable does not require closing the database to reconfigure it.

Additionally, the database administrator can control the size of the Trace File through the variable MAX_DUMP_FILE_SIZE, which allows us to specify the maximum size for the Trace File.

This variable can hold a numeric or alphanumeric value, and the default value is Unlimited.

If the numeric value is used, Oracle will use the Operating System Block Size. However, if an alphanumeric value is used, it will specify the file size in kilobytes or megabytes.

ALTER SYSTEM SET MAX_DUMP_FILE_SIZE='10M'; 

or

ALTER SYSTEM SET MAX_DUMP_FILE_SIZE=10000;