Demos are being upgraded to reflect the new Container paradigm as well as EBR (Edition Based Redefinition) and may contain references to CDBs, PDBs, and other objects you may not be familiar with such as CDB_OBJECTS_AE: Welcome to 12c.
Have you viewed the Library's main Table of Contents? [The alternative to sequences used in other RDBMS products is autonumbering and keeping the current number in a table.
NEXTVAL FROM DUAL; By finding out the current value of the sequence and altering the increment by to be negative that number and selecting the sequence once -- the sequence can be reset to 0.
If any session attempts to use the sequence while this is happening an ORA-08004 error will be generated.
We can not delete the existing data, we need to add the batch id for each record.
example Sequence name : Report_Status_Batch_ID_SEQtable name Report_Status and column name Batch_ID Thanks for your time to help me out.
CREATE SEQUENCE gokhan.sample_seq START WITH 1000; SELECT last_number FROM user_sequences WHERE sequence_name = 'SAMPLE_SEQ'; LAST_NUMBER ----------- 1000 ALTER SEQUENCE gokhan.sample_seq INCREMENT BY -500; SELECT gokhan.sample_seq.
NEXTVAL FROM dual; ALTER SEQUENCE gokhan.sample_seq INCREMENT BY 1; SELECT last_number FROM user_sequences WHERE sequence_name = 'SAMPLE_SEQ'; LAST_NUMBER ----------- 500 CREATE OR REPLACE PROCEDURE SYS.
The issue came to light when investigating a report performance issue on an Oracle 184.108.40.206 non-RAC database.
Investigating the original report problem required an AWR analysis and a SQL trace (actually a 10046 level 12 trace – tracing the bind variables was of critical importance in troubleshooting the initial problem with the report).
Note that no current value will exist for the sequence unless the Oracle NEXTVAL function has been called at least once.