How to Add Services to PDB
By default, Container Database (CDB) provides only one service for every Pluggable Database (PDB) for connections, but we can create our own services for various… Read More »How to Add Services to PDB
sqlplus
How to Add Service to Database
There're two ways to add a service to a database (non-CDB): DBMS_SERVICE Create Service It's an administration package for managing services of a database. SRVCTL… Read More »How to Add Service to Database
Database States Differentiations in Oracle
We have already known that there're 4 states in life cycle of an instance. They are idle, nomount, mount and open. In this post, we… Read More »Database States Differentiations in Oracle
How to Find Oracle DBID
DBID Database Identifier (DBID) is a unique number that can be identified by RMAN so as to do backup and restore whenever needed. In some… Read More »How to Find Oracle DBID
How Oracle RAC VIP Failover to Another Node
Since 11g, we rely more and more on SCAN Virtual IP to load balance and failover connections among nodes of a cluster, so the original… Read More »How Oracle RAC VIP Failover to Another Node
Connect to PDB as SYSDBA by ORACLE_PDB_SID
Connect as SYSDBA We usually connect to the database by / as SYSDBA without providing any password for maintenance works, such as startup, shutdown and… Read More »Connect to PDB as SYSDBA by ORACLE_PDB_SID
How to Resolve ORA-28002: the password will expire within days
ORA-28002 ORA-28002 means that the password of the user will expire soon in X days, although the user is allowable to connect to the database.… Read More »How to Resolve ORA-28002: the password will expire within days
How to Resolve ORA-01017: invalid username/password; logon denied
ORA-01017 ORA-01017 means that you either provided an incorrect pair of username and password, or mismatched authentication protocol, so the database that you tried to… Read More »How to Resolve ORA-01017: invalid username/password; logon denied
How to Check Oracle Client Version 32-bit or 64-bit
32-bit or 64-bit In some situations, we need to know whether our Oracle client is 32-bit or 64-bit in order to use the right tool… Read More »How to Check Oracle Client Version 32-bit or 64-bit
How to Resolve "Connected to an idle instance"
Connected to an idle instance Actually, Connected to an idle instance is a message rather than an error, it indicates that the database you entered… Read More »How to Resolve "Connected to an idle instance"