Oracle Grant All Permission to User

BEGIN
    FOR t IN (select * from dba_tables where owner!='GGSTEST'
            AND owner not like '%SYS%'
            AND owner not like '%ORDDATA%'
            AND owner not like '%ADMIN%'
            AND owner not like '%APEX%'
            AND owner not like '%XDB%'
            AND owner not like '%FLOW_FILES%'
            AND owner not like '%OE%' AND iot_type IS NULL)
    LOOP
    EXECUTE IMMEDIATE 'GRANT ALL PRIVILEGES ON '|| t.owner ||'.' || t.table_name ||' TO TIPTOPGP';
    END LOOP;
    END;