Oracle

Installation Guide on AIX for All Releases of Oracle Database

by Ed Chen
March 23, 2023February 16, 2023

In this post, we collect installation guides on AIX for all database releases. You may bookmark this page by pressing Ctrl + d to. There're… Read More »

Installation Guide on Solaris for All Releases of Oracle Database

by Ed Chen
March 22, 2023February 16, 2023

In this post, we collect installation guides on Solaris for all database releases. You may bookmark this page by pressing Ctrl + d to. There're… Read More »

Installation Guide on Windows for All Releases of Oracle Database

by Ed Chen
March 21, 2023February 15, 2023

In this post, we collect installation guides on Windows for all database releases. You may bookmark this page by pressing Ctrl + d to. There're… Read More »

Installation Guide on Linux for All Releases of Oracle Database

by Ed Chen
March 20, 2023February 15, 2023

In this post, we collect installation guides on Linux for all database releases. You may bookmark this page by pressing Ctrl + d to. There're… Read More »

How to Resolve ORA-08186: invalid timestamp specified

by Ed Chen
March 17, 2023March 21, 2023

ORA-08186 Tried to perform a flashback query, but it failed with ORA-08186. SQL> select count(*) cnt from t1 as of timestamp to_timestamp('3023-02-20 00:53:08', 'yyyy-mm-dd hh24:mi:ss');… Read More »

How to Resolve ORA-01466: unable to read data - table definition has changed

by Ed Chen
March 16, 2023March 21, 2023

ORA-01466 Tried to perform a flashback query, but it failed with ORA-01466. SQL> select count(*) cnt from t1 as of timestamp to_timestamp('2023-02-19 22:15:00', 'yyyy-mm-dd hh24:mi:ss');… Read More »

How to Resolve DBT-06006: Unable to create directory

by Ed Chen
March 15, 2023March 16, 2023

DBT-06006 Saw error DBT-06006 when we tried to create a database by Database Configuration Assistant (DBCA). [FATAL] [DBT-06006] Unable to create directory: (/oradata/ORCLCDB/). CAUSE:… Read More »

How to Resolve ORA-00030: User session ID does not exist.

by Ed Chen
March 14, 2023March 16, 2023

ORA-00030 Tried to kill a session, but it failed with ORA-00030. SQL> ALTER SYSTEM KILL SESSION '1821, 8545, @2'; ALTER SYSTEM KILL SESSION '1821, 8545,… Read More »

How to Resolve ORA-28009: connection as SYS should be as SYSDBA or SYSOPER

by Ed Chen
March 10, 2023February 15, 2023

ORA-28009 Tried to connect to a database, but it failed with ORA-28009. SQL> conn sys/password@orclpdb ERROR: ORA-28009: connection as SYS should be as SYSDBA or… Read More »

How to Check SCAN Host Name

by Ed Chen
March 9, 2023March 11, 2023

SCAN Hostname To know the hostname of a SCAN in the cluster, we have some ways to get it. nslookup Given a known SCAN IP,… Read More »