- update A a set a.A2 = (select b.B2 from B b where b.B1=a.A1) where
- exists (select 1 from B where B.B1=a.A1)
-- Create/Recreate indexes
create index t_source_phase_01 on t_source_phase (lineid) tablespace COMMON_CABLE pctfree 10 initrans 2 maxtrans 255 storage ( initial 64K next 1M minextents 1 maxextents unlimited );