How to check whether a table exists in database

test9997 is table already made in database with 3 columns :1st-varchar,2nd-number,3rd-number
declare
var1 varchar2(20);
var2 number(20);
var3 number(20);
begin
plvar1 :='this is again pl/sql';
plvar2 := 12;
plvar3 := 13;
IF (???? condition for existence of table say test1111??????) then
create table test1111(
var1 varchar2(20);
var2 number(20);
var3 number(20);
insert into test1111(plvar1,plvar2,plvar3);
else
insert into test1111(plvar1,plvar2,plvar3);;
end if;
end;
in the above code i want to check existence of a table and insertion or updation will be based on it after creation if it doesnt exist.
how to do it
please help asap

You're in the wrong forum (this one is for issues with the SQL Developer tool). You'll get more answers in the SQL And PL/SQL forum.
Have fun,
K.

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