Mongodb database index ddl
You can use below script to check how many existing indexes you have in your Mongo database for all collections. this is really helpful when you have one environment working… Read more »
Author Archives: Pankaj Yadav
How to check if tablespaces are autoextend
How to check if tablespaces datafiles are autoextend col FILE_NAME for a60 select TABLESPACE_NAME, FILE_NAME,AUTOEXTENSIBLE,MAXBYTES from dba_Data_files where TABLESPACE_NAME like ‘Tablespace_Name’; _________________________________________________________________________________________________________________________ col FILE_NAME for a60 select TABLESPACE_NAME, FILE_NAME,AUTOEXTENSIBLE,MAXBYTES from… Read more »
Database and server details report from OEM
Database and server details Report from OEM: Database version and Server Details 1- How do I get the number of databases for each category version? SELECT property_value, COUNT(*) FROM mgmt$target_properties… Read more »
Convert single Instance database to 2 Node RAC
Convert Single Instance database to 2 Node RAC Convert Single Instance Database to 2 Node RAC oracle 10g / 11g. Install Clusterware on the nodes on which you want to… Read more »
Oracle database management scripts
Oracle database management scripts- Check how large size of the database col “Database Size” format a20 col “Free space” format a20 col “Used space” format a20 select round(sum(used.bytes) / 1024… Read more »
RAC srvctl and crsctl useful commands
RAC SRVCTL and CRSCTL useful commands- Below are some of the commands which we have used regularly in our RAC system. There are many more RAC commands for 11gR2/12c Clusterware… Read more »
Convert physical standby database to snapshot standby database
Convert Physical Standby Database to Snapshot standby Database The difference between a read-only standby and a snapshot standby is that the snapshot standby is fully update-able. It was possible in… Read more »
Basic sql questions Answers
SQL Test Questions Answers Question No. 1 of 30 A SQL command that is used to reduce the access time is • MINIMIZE • REDUCETIME • INDEX • MINTIME Correct… Read more »
Oracle DBA RAC Interview Question Answers
Oracle DBA RAC Interview Question Answers What is RAC? What is the benefit of RAC over single instance database? In Real Application Clusters environments, all nodes concurrently execute transactions against… Read more »
What is datapump in oracle
What is datapump in oracle Data Pump: Data pump is a utility provided by Oracle to export data and/or structure from a database into a binary file called as dump… Read more »