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Author UPDATE QUERY - HELP NEEDED PLEASE
joshnosh

2005-10-15, 6:56 pm

I have two tables tblLogin and tblTrades

I have 3 fields in each table, for thr purpose of this question

tblLogin Fields are
MemberNo
RegNo
Country

tblTrades fields are
MemberNo
RegNo
Country

There are other fields in both table but the fields shown are fields i
need to work on

the Tables look like this

tblLogin
----------------------------
MemberNo | RegNo | Country |
----------------------------
1 1 Wales
2 1 england
3 1 scotland
4 2 wales
5 2 england
6 2 scotland
7 3 Wales
8 3 england
9 3 scotland
10 4 wales
11 4 england
12 4 scotland

tblTrades
----------------------------
MemberNo | RegNo | Country |
----------------------------
0 1 Wales
0 1 england
0 1 scotland
0 2 wales
0 2 england
0 2 scotland
0 3 Wales
0 3 england
0 3 scotland
0 4 wales
0 4 england
0 4 scotland


I need the field MemberNo in tblTrades to match the MemberNo in
tblLogin
Any help appriciated as cant to get any SQL code i use to work,
because it must be wrong.
and its a lot of quesswork.
I am using phpMyAdmin on a MYSql database

ZeldorBlat

2005-10-16, 9:56 pm

update tblTrades
set MemberNo = l.MemberNo
from tblTrades t, tblLogin l
where t.RegNo = l.RegNo
and t.Country = l.Country

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