Question

I have one database which contains two tables:

–October2012_ID which contains two columns:

a) OldId
b) NewId

–BNP which contains two columns also:

a)BankId
b)OrbId

I need to update the BNP table by replacing values contained into the two columns IF these values are available in the column OldId located into the table October2012_ID. And if this is the case, I need to update the columns in BNP by the value of NewId.

So:

Update BNP
SET BNP.**BankId**=October2012_Id.NewId
where BNP.**BankId**=October2012_Id.OldId and October2012_Id.**BankId** is not null

And also:

Update BNP
SET BNP.**OrbId**=October2012_Id.NewId
where BNP.**OrbId**=October2012_Id.OldId and October2012_Id.**OrbId** is not null

I’m a noob in SQL, so could you help me please ?

Answer 1

You can try to add or between your conditions:

Update BNP
SET BNP.BankId=October2012_Id.NewId
from October2012_Id
where 
  (BNP.BankId=October2012_Id.OldId and October2012_Id.BankId is not null)
  or
  (BNP.OrbId=October2012_Id.OldId and October2012_Id.OrbId is not null)