Question

I need help on creating updating SQL script

TableA

colA    colB    colC    colD    colE
  a       b       x       g       z 
  b       c       d       g       h 
  c       d       f       g       v  
  v       f       f       g       f
  d       a       q       o       a

TableB

colA    colB    colC    colD    colE
  a       b       x       y       a 
  b       c       d       g       b 
  c       d       f       g       c  
  d       e       s       g       d
  v       f       f       g       e 

I need TableB.colE to update to TableA.colE where TableB.colD = TableA.colD
Result shall be

TableA

colA    colB    colC    colD    colE
  a       b       x       g       b 
  b       c       d       g       c 
  c       d       f       g       d  
  v       f       f       g       e
  d       a       q       o       a

I have tried using

UPDATE TABLEA SET(TABLEA.COLE=TABLEB.COLE) WHERE TABLEA.COLD =  TABLEB.COLD

it doesn’t work.

Answer 1

UPDATE TABLEA SET TABLEA.COLE=TABLEB.COLE from TABLEB WHERE TABLEA.COLD = TABLEB.COLD

You have missed to specify the second table name TABLEB in from clause. Try this.