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A core SQL statement, SELECT retrieves data from one or more tables or other sources of row set data such as views or table-valued functions.
3
votes
It's possible for a SELECT statement to modify the database, for example:
select mysequence.nextval increments a sequence
select myfunction executes a PL/SQL function which could have any sort of … created.
SQL> commit;
Commit complete.
SQL> select * from t1;
X
----------
42
SQL> create or replace function f1 return varchar2 is
pragma autonomous_transaction;
begin
execute …
answered Apr 12 '15 by Marco Baldelli
