> Sequences, if I got that right, need the new value to be stored
> immediately, i.e. outside of an active transaction. This requires a
> second connection to the database which probably causes more
> implementation work for my web application.
You mean real sequences? As with Oracle? Then no, you can use
the values to whatever purpose you like.
An Oracle/InterBase/Firebird/DB2/any decent DBMS Sequence
is a separate metadata object with the only purpose to generate
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> I don't need LOCK TABLES anymore now. And at last, I can say that this
> is indeed not a simple topic as I've thought and maybe I've read most of
> the related documentation now anyway...