Oracle

I will explain Tnsnames.ora file in Oracle | tnsnames.ora sample in this post.

I will explain TNS_ADMIN Environment Variable in Oracle in this post.

I will explain Oracle Password Expiration in this post. Sometimes you can get ” ORA-28002 The Password Will Expire in 7 Days Errors ” error when you log in database …

I will share Find Oracle blocking sessions and Kill Locked Session Scripts & Locked Objects scripts and other Oracle DBA Scripts ( Oracle RAC, Dataguard, Performance Tuning, Monitoring and etc.. ) …

I will explain Oracle Alter Table Add Column in this post.

I will explain V$SQL and GV$SQL Views in Oracle in this post.

I will explain Oracle Spool to File in SQLPlus in this post.

I will explain RMAN CrossCheck in Oracle in this post.

I will explain Grant Resource Role in Oracle in this post.

I will explain Alter system switch logfile in Oracle in this post.