Contents
How do I archive database data?
On the Content tab, provide the information for the source database table that you want to archive:
- From the Database list, select the SQL database that you want to archive.
- Click Add Target Table.
- From the Select Archiving Target Table section, select a schema and an archiving target table.
How do I archive old data in SQL Server?
Another way of doing this is by using the SWITCH command in the partition. To archive data using the SWITCH command, you need to create same table structure in same file group as the partition that you are about to archive as shown below. Next is to switch data to newly created table.
How do I archive an old data in PostgreSQL-codeproject?
1. Clone a new database (DB-2) from existing database (DB-1). 2. Delete an old data from DB-1, so it will have only the last 2 years records.In case If I need old data can connect DB-2. 3. Every month should move an old data from DB-1 to DB-2, and delete the moved records from DB-1.
Where is the write ahead log in PostgreSQL?
At all times, PostgreSQL maintains a write ahead log (WAL) in the pg_wal/ subdirectory of the cluster’s data directory. The log records every change made to the database’s data files.
What happens if PostgreSQL falls behind in archiving?
If archiving falls significantly behind, this will increase the amount of data that would be lost in the event of a disaster. It will also mean that the pg_xlog/ directory will contain large numbers of not-yet-archived segment files, which could eventually exceed available disk space.
How to back up databases with PostgreSQL log?
However, the existence of the log makes it possible to use a third strategy for backing up databases: we can combine a file-system-level backup with backup of the WAL files. If recovery is needed, we restore the file system backup and then replay from the backed-up WAL files to bring the system to a current state.