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I am trying to use Dennis’ solution here as an implementation of auto_increment in Oracle database. Say I create one sequence as follows:
CREATE SEQUENCE auto_increment
START WITH 1
INCREMENT BY 1;
If I want auto_increment behavior in multiple tables, can I just use this sequence for all tables? Or do I need a separate sequence per table? That is, will the sequence increment for one table be affected by another table using the sequence?
Yes, the sequence accesses will be affecting each other if you use the same sequence. However the tone of your question makes me think that you expect the sequence to be continuous.
Don’t be fooled, sequences are NOT sequential. The only thing that you can be garanteed is that the numbers retrieved are unique, and in an ascending order (in your case)