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Updating one table with another

Updating one table with another

Updating one table with another

I need to update the column reg_user.fld01  with the value of reg.yearofgrad
for the correct studentid:

  - update  reg_user
  -     set reg_user.fld03      = reg.yearofgrad
  -  where  reg_user.screen_num = 11

Table reg
Column name          Type                                    Nulls

studentid            integer                                 no
fname                char(20)                                no
mname                char(15)                                yes
lname                char(25)                                no
status               char(1)                                 no
yearofgrad           char(4)                                 no

Table reg_user
Column name          Type                                    Nulls

studentid            integer                                 no
screen_num           smallint                                no
fld01                char(15)                                yes
fld03                char(15)                                yes
fld04                char(15)                                yes

update reg_user set
        fld04 = '1',
        fld03 = '1',
        fld01 = (select yearofgrad from reg
                  where status = 'A'
                  and ...
 where reg_user.screen_num = 11  
   and ...           

RE: Updating one table with another

Something like this ?


UPDATE reg_user
   SET fld04='1'
      ,fld01=(SELECT yearofgrad FROM reg
               WHERE status='A'
                 AND studentid=reg_user.studentid
 WHERE screen_num=11
   AND studentid IN(SELECT studentid FROM reg WHERE status='A')

Hope This Helps, PH.
FAQ219-2884: How Do I Get Great Answers To my Tek-Tips Questions?
FAQ181-2886: How can I maximize my chances of getting an answer?

RE: Updating one table with another

Work like a dream......Thanks

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