ORA-ERRORS

I got ” ORA-01406: fetched column value was truncated ” error in Oracle.

I got “ORA-02396: Exceeded Maximum Idle Time, Please Connect Again ” error in Oracle.

I got ” ORA-01400: cannot insert NULL into ” error in Oracle.

I got ” ORA-29024: Certificate validation failure ” error in Oracle.

I got ” ORA-00903: invalid table name ” error in Oracle.

I got ” ORA-02063: preceding line from from dblink ” error in Oracle.

I got ” ORA-06502: PL/SQL: numeric or value error ” error in Oracle.

I got ” ORA-01013: user requested cancel of current operation ” error in Oracle sqlplus.

Sometimes You can get “ORA-12154: TNS:could not resolve the connect identifier specified ” error.

I got “ORA-07445: Exception Encountered: Core Dump ” error in Oracle database.