ORACLE

Gaps occur in the blocks due to deletion operations in the tables. These spaces remain as wasted space. These spaces should be determined and shrink …

Oracle attempts  to put a lock on the table with the foreign key if a change is made to the main table with the primary …

Enqueues are shared memory structures that serialize access to database resources.(locks) They can be associated with a session or transaction. HW (high water mark) is …

An active request represents a client- or application-centric view of I / O requests processed by the cell node. You can view active requests on …

If you attempt to rebuild an entire index while rebuilding a partitioned index, you may receive an ORA-14086 error. [crayon-68559cac9c61f187622871/] To solve the problem, rebuild …

If there is a session that uses the temp tablespace you are trying to drop, the drop operation starts waiting. The drop operation is completed …

“enq: SS – contention” wait event may occur in problems with temp tablespace usage in Oracle RAC databases. At the same time, SMON may be …

We can connect to database servers in Oracle Cloud environment or other linux servers using ssh private key. After creating a server or database deployment, …

We connect to all servers that we create in Oracle Cloud environment with ssh public and private key. When creating our database server or normal …

Creating a new instance using Oracle Database Cloud Service on Oracle Cloud is called database deployment. It is possible to simply create a database and …