ORA-12514: TNS: listener could not resolve SERVICE_NAME given in connect descrip
Cause See the Solution section of this document
Solution If you receive the message when testing database links: ORA-12514: TNS: listener could not resolve SERVICE_NAME given in connect descriptor either:
- the database is shut down or
- the tnsnames.ora file contains an incorrect SID or SERVICE_NAME.
Restart the database or correct the tnsnames.ora entries. Once you have resolved the problem, retest the link.
ORA-00942: table or view does not exist
Solution Verify that you are not connected as sysdba.
ORA-12560: TNS:protocol adapter error
You may be have two databases in the same comnputer. Define the Oracle SID before attempting to connect.
C:\>sqlplus / as sysdba SQL*Plus: Release 10.2.0.4.0 - Production on Fri Oct 31 15:03:30 2008 Copyright (c) 1982, 2007, Oracle. All Rights Reserved. ERROR: ORA-12560: TNS:protocol adapter error Enter user-name: C:\>set ORACLE_SID=ORCL C:\>sqlplus / as sysdba SQL*Plus: Release 10.2.0.4.0 - Production on Fri Oct 31 15:04:13 2008 Copyright (c) 1982, 2007, Oracle. All Rights Reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL>
ORA-30381: REWRITE_TABLE is not compatible with Oracle version
Cause: One or more column definitions in the REWRITE_TABLE is either missing or incompatible with the current Oracle version.
Action: Connect to the appropriate schema, DROP TABLE REWRITE_TABLE and recreate it by invoking the admin/utlxrw.sql script prior to invoking the DBMS_MVIEW.EXPLAIN_REWRITE() API.
SQL> DROP TABLE REWRITE_TABLE; Table dropped. Elapsed: 00:00:00.28 SQL> @C:\oracle\product\10.2.0\db_1\RDBMS\ADMIN\utlxrw.sql Table created. Elapsed: 00:00:00.03
ORA-30476: PLAN_TABLE does not exist in the user“s schema
Cause: Estimate_Summary_Size uses Oracle SQL “EXPLAIN PLAN” command to estimate cardinality of the specified select-clause. This requires a table called the PLAN_TABLE in the user”s schema. For more information refer to the SQL Reference Manual.
Action: Create the PLAN_TABLE as described for EXPLAIN PLAN. On most systems a script utlxplan.sql will create this table.
SQL> DROP TABLE PLAN_TABLE; Table dropped. Elapsed: 00:00:00.28 SQL> @C:\oracle\product\10.2.0\db_1\RDBMS\ADMIN\utlxplan.sql Table created. Elapsed: 00:00:00.03
ORA-30926: unable to get a stable set of rows in the source tables
Suppose you have a source and a destination table. You want to add the data to the value of any existing rows and insert any new rows.
MERGE INTO tdest d USING tsrc s ON (s.srckey = d.destkey) WHEN MATCHED THEN UPDATE SET d.destdata = d.destdata + s.srcdata WHEN NOT MATCHED THEN INSERT (destkey,destdata) VALUES (srckey,srcdata)
Multiple inserts into the destination of the same key value from the source table will be allowed. However, there is a restriction that multiple updates to the same row in the destination table is not allowed. The following error will be returned if this is attempted:
ORA-30926: unable to get a stable set of rows in the source tables Cause: A stable set of rows could not be got because of large dml activity or a non-deterministic where clause. Action: Remove any non-deterministic where clauses and reissue the dml.