ORACLE

If there is a difference with the db_name parameter when opening the Oracle database, you receive an error as follows. “ORA-00205: error in identifying control …

ORA_ROWSCN returns the SCN information for the last modified date of the row for each row in a table. You can use this pseudo-column to …

Static Data Dictionary Views These are new static data dictionary views which are introduce in Oracle Database Release 19c. ALL_TRIGGERS_AE DBA_TRIGGERS_AE USER_TRIGGERS_AE DBA_AUTO_INDEX_CONFIG DBA_AUTO_STAT_EXECUTIONS DBA_PDB_SNAPSHOTFILE …

It is possible to convert SCN (system change number) to date and date to SCN in Oracle databases. This allows us to find out when …

In Oracle databases, over time, indexes are fragmented and cause serious performance issues. We should check the indexes regularly and rebuild them if necessary. Determine …

If the password file format in the 12c databases is same with the format in the 11g databases, you receive the error “ORA-28017: The password …

You may see this error in the database alert log file during upgrade from 11.2 to 12.2. [crayon-67d61440b1e11672759106/] The reason for this error is that …

When running Database Configuration Assistant (dbca) on Exadata compute nodes, you will receive this error if all nodes cannot connect to each other without password …

Enable Unified Auditing Relink is required to enable the new audit mechanism announced with Oracle database 12c (12.1). You can do this as follows. First, …

Because the segment space management of the tablespace of the AUD$ and FGA_LOG$ tables is not automatic, a “gc buffer busy acquire” wait event can …