If you omit schema, then Oracle Database creates the sequence in your own schema.. sequence. SELECT LAST_NUMBER FROM ALL_SEQUENCES WHERE SEQUENCE_NAME = 'seq_name'; ALTER SEQUENCE seq_name INCREMENT BY 100; -- Value to reach desired value - 1 SELECT seq_name.nextval FROM dual; -- Reinitialize value to desired ALTER SEQUENCE seq_name INCREMENT BY 1; -- Back to init step 1. oracle create sequence if not exists. 序列常常用来作为主键中增长列，序列中的可以升序生成，也可以降序生成。. In 12.2 the create sequence statement fails if PARTITION/NOPARTITION clause is included. Table 7-11 shows the EXISTS condition. Sequence number variable in exists query — oracle-tech SEQUENCE Oracle does not provide IF EXISTS clause in the DROP TABLE statement, but you can use a PL/SQL block to implement this functionality and prevent from errors then the table does not exist. 2. Oracle Use the CREATE SEQUENCE statement to create a sequence, which is a database object from which multiple users may generate unique integers. This involves creating and initialising a new single-row table with the name seqname. Previous … Third, use the OR REPLACE option if you want to re-create the synonym if it already exists. EXISTS Condition - Oracle Create a table MONITOR_PERSONS in your SOMERSET schema and create a public synonym for that. IF NOT EXISTS and CREATE SCHEMA MSDN Microsoft. ORA-02289: sequence does not exist — oracle-tech