The SCM0 background process in Oracle RAC (Real Application Clusters) is a component of the Oracle Clusterware and is responsible for managing the shared resources…
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SQL Profile and SQL Baseline are both used to optimize the performance of SQL statements in Oracle databases. However, they work in slightly different ways:…
Leave a CommentPL/SQL lock timer wait event in Oracle occurs when a session is waiting for a lock held by another session to be released. This can…
Leave a CommentA Program Global Area (PGA) is a memory region that contains data and control information for a server process. It is non-shared memory created by…
Leave a CommentOracle 19c databases support several different types of indexes, each with its own specific use cases and characteristics. An index in an Oracle database is…
Leave a CommentThe Result Cache is a feature in Oracle 11g and later versions that allow the database to store the results of frequently executed queries in…
Leave a CommentWe have seen “enq: UL – contention” wait event a couple of times in our Oracle Database. It occurs when there is contention for an…
Leave a CommentHigh I/O (Input/Output) activity in an Oracle Database can indicate that the system is under heavy load and this may lead to performance issues. High…
Leave a CommentThe ORA-30036 error is a common issue that can occur in an Oracle Database when the system is unable to extend a segment by a…
Leave a CommentOracle Exadata is a high-performance database machine that combines the power of Oracle Database software with the speed and scalability of industry-standard x86 servers, InfiniBand…
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