public int update() {
session.getUser().checkAdmin();
session.commit(true);
Database db = session.getDatabase();
Sequence sequence = getSchema().findSequence(sequenceName);
if (sequence == null) {
if (!ifExists) {
throw DbException.get(ErrorCode.SEQUENCE_NOT_FOUND_1, sequenceName);
}
} else {
if (sequence.getBelongsToTable()) {
throw DbException.get(ErrorCode.SEQUENCE_BELONGS_TO_A_TABLE_1, sequenceName);
}
db.removeSchemaObject(session, sequence);
}
return 0;
}
private void removeSequence(Sequence sequence) {
if (sequence != null) {
table.removeSequence(sequence);
sequence.setBelongsToTable(false);
Database db = session.getDatabase();
db.removeSchemaObject(session, sequence);
}
}