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07-Dec-2016 13:59' increment by 1 minvalue 0'; end; / drop and recreate the sequence, but the disadvantage is this would invalidate all dependent objects (triggers/stored procedures etc.). Reset your sequence when others are not using it simultaneously, else they (or you) may get this error: ORA-08004: sequence SEQ.In Oracle it is possible to alter an existing Oracle sequence.To accomplish this you can use the Oracle ALTER SEQUENCE command.To retrieve the next value in the sequence order, you need to use option specifies how many sequence values will be stored in memory for faster access.The downside of creating a sequence with a cache is that if a system failure occurs, all cached sequence values that have not be used, will be "lost". ‘_PK_SEQ1’; IF p_new Ugh – looks like all my double hyphen comment indicators got converted to em-dashes upon posting. —- Author: Ben Martinka 8/9/13 CREATE or REPLACE PROCEDURE reset_seq( —- p_nxt out number, p_tbl in varchar2, p_new in number DEFAULT -1, p_min in number DEFAULT 0 ) IS l_new number; l_nxt number; l_cnt number; l_inc number; l_min number; l_key varchar2(256); l_seq varchar2(256); BEGIN —- Derive primary key & sequence names from table name —- according to database design standards.A sequence is an object in Oracle that is used to generate a number sequence.This can be useful when you need to create a unique number to act as a primary key. The first sequence number that it would use is 1 and each subsequent number would increment by 1 (ie: 2,3,4,...}. If you omit the MAXVALUE option, your sequence will automatically default to: Now that you've created a sequence object to simulate an autonumber field, we'll cover how to retrieve a value from this sequence object.To fix this problem you can try to find where your sequences are used and get the MAX(value) to find the next value.
Alternatively you can just add a large random number, say 1,000,000, to all your sequences.NEXTVAL goes below MINVALUE and cannot be instantiated Very helpful.