MINVALUE or NOMINVALUE Option

Use the MINVALUE option to specify a new lower limit of values in the sequence. The minimum value, or min, must be an integer the INT8 range that is less than sequence.CURRVAL and restart (or less than the origin in the original CREATE SEQUENCE statement, if restart is not specified).

Use the NOMINVALUE option to replace the current lower limit with a default of 1 for ascending sequences or -(2e64) for descending sequences.