Equivalent of "exists"

Question

is there an equivalent of keyword "exists" in PL/SQL?
I am trying to use but it fails:
if exists(select TABLE_NAME from user_tables where TABLE_NAME = 'UNSUBS_RECORD';); then
Drop Table UNSUBS_RECORD;
Create Table UNSUBS_RECORD (IPKID number, dt_prod2staging date, vch2_execution_Source varchar2(255), dt_kana2onyx_transfer date);
end if;
and the returning error is:
unknown command beginning "if exists(..." - rest of line ignored.
I appreciate your assistant

Answer 1

Hi
I would do it like this
begin
-- see if the table exists
select TABLE_NAME
from user_tables
where TABLE_NAME = 'UNSUBS_RECORD';
-- table exists, drop it
Drop Table UNSUBS_RECORD;
-- create it
Create Table UNSUBS_RECORD
(IPKID number,
dt_prod2staging date,
vch2_execution_Source varchar2(255),
dt_kana2onyx_transfer date);
exception
when NO_DATA_FOUND
then null;
end;null