Daily Activity
- Oracle Database instance is running or not
- Database Listener is running or not.
- Check any session blocking the other session
- Check the alert log for an error
- Check is there any dbms jobs running & check the status of the same
- Check the Top session using more Physical I/O
- Check the number of log switch per hour
- How_much_redo_generated_per_hour.sql
- Run the statpack report
- Detect lock objects
- Check the SQL query consuming lot of resources.
- Check the usage of SGA
- Display database sessions using rollback segments
- State of all the DB Block Buffer
Weekly Activity
- Check the objects fragmented
- Check the Chaining & Migrated Rows
- Check the size of tables & check weather it need to partition or not
- Check for Block corruption
- Check the tables without PK
- Check the tables having no Indexes
- Check the tables having more Indexes
- Check the tables having FK but there is no Index
- Check the objects having the more extents
- Check the frequently pin objects & place them in separate tablespace & in cache
- Check the objects reload in memory many time
- Check the free space at O/s Level
- Check the CPU, Memory usage at O/s level define the threshold for the same.
- Check the used & free Block at object level as well as on tablespaces.
- Check the objects reaching to it’s Max extents
- Check free Space in the tablespace
- Check invalid objects of the database
- Check open cursor not reaching to the max limit
- Check locks not reaching to the max lock
- Check free quota limited available of each user
- Check I/O of each data file
Monthly Activity
- Check the database size & compare it previous size to find the exact growth of the database
- Find Tablespace Status, segment management, initial & Max Extents and Extent Management
- Check location of data file also check auto extendable or not
- Check default tablespace & temporary tablespace of each user
- Check the Indexes which is not used yet
- Check the Extents of each object and compare if any object extent are overridden which is define at tablespace level
- Tablespace need coalescing
- Check the overall database statistics
- Trend Analysis of objects with tablespace, last analyzed, no. of Rows, Growth in days & growth in KB
Nightly Activity
- Analyzed the objects routinely.
- Check the Index need to Rebuild
- Check the tablespace for respective Tables & Indexes
One Time Activity
- Database user creation with required privileges
- Make the portal of Oracle Predefined error with possible solution.
- Check database startup time(if not 24X7)
- Check location of control file
- Check location of log file
- Prepare the Backup strategy and test all the recovery scenario
If we together build a comprehensive list of Oracle DBA daily/weekly/monthly routine tasks, then many Oracle new DBAs like me will benefit from it.
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