INTERVIEW QUESTIONS DATABASE DBA DETAILS

Question: How can we specify the Archived log file name format and destination?

Answer: By setting the following values in init.ora file. LOG_ARCHIVE_FORMAT = arch %S/s/T/tarc (%S - Log sequence number and is zero left padded, %s - Log sequence number not padded. %T - Thread number left-zero- padded and %t - Thread number not padded). The file name created is arch 0001 are if %S is used. LOG_ARCHIVE_DEST = path.

By setting the following values in init.ora file. LOG_ARCHIVE_FORMAT = arch %S/s/T/tarc (%S - Log sequence number and is zero left padded, %s - Log sequence number not padded. %T - Thread number left-zero- padded and %t - Thread number not padded). The file name created is arch 0001 are if %S is used. LOG_ARCHIVE_DEST = path. Source: CoolInterview.com

IF OUR DATABASE IS RUNNING WITH SPFILE,WE CAN ALTER THE ARCHIVE DESTINATION OF THE DATABASE DYNAMICALLY.
SQL> alter system set log_archive_dest_1='location=/home/arch';
System altered.
SQL> archive loglist
here we will see the new archive destination. Source: CoolInterview.com

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