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Database ERRORS

ORA-03135: connection lost contact

The ORA-03135 error is common when 1) Server unexpectedly terminated or was forced to terminate. or 2) Server timed out the connection. Solution–: 1) Check if the server session was terminated. 2) Check if the timeout parameters are set properly Read more…

By Ahmad, 2 years2 years ago
Database ERRORS

ORA-02030: can only select from fixed tables/views

When we Grant the Select privilege on a V$ view we will get an ora-02030 error. As ORA-02030 says, that we can only select from fixed tables/views, which means V$INSTANCE is not a table or view. We know that actual view Read more…

By Ahmad, 2 years2 years ago
Database Performance Tuning

Active Session History (ASH)

The Oracle wait event model was originally introduced in Oracle7. Wait event information is gathered by the Oracle MMON background process, stored in intermediate x$ structures in a circular SGA buffer, and later transferred to Oracle10g dba_hist tables. Oracle 10g introduced the Active Read more…

By Ahmad, 2 years2 years ago
Database Oracle19c

New Features for Database in Oracle 19c !!

Oracle Database 19c, is the long term support release of the Oracle Database 12c family. It belongs to the family Oracle Database 12.2.0.X. 19c Long Term Release Premier Support (PS) ends April 30, 2024, Extended Support (ES) will be beginning May 01, Read more…

By Ahmad, 2 years ago

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Riaz Ahmad Ansari is an Oracle Consultant, Speaker, Blogger, YouTuber & Mentor.

He is famous for Ahmad’s nickname in the IT industry.

He has many years of experience as a production Oracle DBA managing all operating system based Oracle Databases.

He started working with Oracle Database starting from Oracle 9i to 10g/11g/12c18c/19c.

He has hands-on experience in real-world Production environments.

He is skilled with Oracle technologies such as Core DBA work, Data Guard, RMAN, Backup & Recovery, RAC, Cloud Control, and Performance Tuning.

  • Email
    ahmad@oracleride.com
  • Phone
    +91 9648108988
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