CREATE SEQUENCE ...https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/CREATE-SEQUENCE.html

KEEP

Specify KEEP if you want NEXTVAL to retain its original value during replay for Application Continuity.
This behavior will occur only if the user running the application is the owner of the schema containing the sequence.
This clause is useful for providing bind variable consistency at replay after recoverable errors.
Refer to Oracle Database Development Guide for more information on Application Continuity.

Во время воспроизведения (проигрывания снова) выполняемых действий для Application Continuity
может быть получено то же значение NEXTVAL, которое было получено ранее.