How exit for a script having set of pl/sql blocks and sql queries

Question

HI,
I have set of blocks and sql queries in a script.
In some cases I want to stop the excution of next statements and blocks.
As in pl/sql block We can use return , in case of loop we can use exit, so what is to be use in case if sql script which contain set of blocks and sql queries.
Thanks and Regards in Advance,

Answer 1

Hi,
how to exit from the script if confirm_to_continue is set to 'N'.
i.e in this case I want the preceding statements not to be excuted.
Please suggest.
script:
declare /*BLOCK NO1*/
begin
IF &&confirm_to_continue = 'N'
THEN
---exit from from whole script
RETURN; -- this will only exit from this block
END IF;
end;
host IF EXIST &file_name (del &file_name) ELSE (echo missing)
declare /*BLOCK NO 2*/
begin
end;
/