SQL - compare 2 tables, if email in tbl1 exist in tbl2 then don't show, move next

try to check out the link might help... regarding about join...

http://www.experts-exchange.com/Databases/MS_Access/Q_20950529.html

tippingpoint,

assuming that your connection is oConn... I think this logic will help if outer join is not applicable...  You can try it in your exisiting db just change the connection as well as the recordset object that you are currently using...


set rs1 = Server.CreateObject("ADODB.Recordset")
sql1 = "Select distinct email from TBL1 order by email"
rs1.Open sql1 , oConn, 1, 3

strcompare = ""
Do while not(rs1.eof )
strcompare = strcompare & "," & rs("email")
rs1.movenext
loop

arraystrcompare = split(strcompare,",")

set rs2 = Server.CreateObject("ADODB.Recordset")
sql2 = "SELECT distinct email FROM TBL2 order by email"
rs2.Open sql2 , oConn, 1, 3

do while not(rs2.eof)
countersame = 0
For x=LBound(arraystrcompare) to LBound(arraystrcompare)
if arraystrcompare(x) = rs2("email") then
countersame = countersame + 1
exit for
end if
next

if countersame = 0 then
response.write rs2("email") & "<br>"
end if

rs2.movenext
loop


Hope this help...

HAppy programming....

ooops some typo

change this line

For x=LBound(arraystrcompare) to LBound(arraystrcompare)

with this

For x=LBound(arraystrcompare) to UBound(arraystrcompare)

If that worked, then we could just use the SELECT INTO clause to get what we need:

http://www.w3schools.com/sql/sql_select_into.asp



SELECT email INTO TBL3 FROM TBL1 WHERE email NOT IN (SELECT email FROM TBL2)


FtB