Check table exist or not before create it in Oracle

Question

Trying to check is table exist before create in Oracle. Search for most of the post from Stackoverflow and others too. Find some query but it didn\'t work for me.

Answer 1

-- checks for table in specfic schema:

declare n number(10);

begin
    Select count(*) into n  from SYS.All_All_Tables where owner = 'MYSCHEMA' and TABLE_NAME =  'EMPLOYEE';

   if (n = 0) then 
     execute immediate 
     'create table MYSCHEMA.EMPLOYEE ( ID NUMBER(3), NAME VARCHAR2(30) NOT NULL)';      
   end if;
end;