Instrucciones para crear un usuario en oracle

DROP USER Est01 CASCADE;

CREATE USER Est01 IDENTIFIED BY est01
       DEFAULT TABLESPACE centroinca
       TEMPORARY TABLESPACE temporal
       QUOTA UNLIMITED ON data;

CREATE ROLE estudiantes;

GRANT CREATE session, CREATE table, CREATE view,
      CREATE procedure,CREATE synonym,

      ALTER table, ALTER view, ALTER procedure,ALTER synonym,
      DROP table, DROP view, DROP procedure,DROP synonym,
      TO conn;

GRANT estudiante TO Est01;