SQL Query from diffrent tables - How to


I have 3 databases like below;

MUSID : autoinc

TekID : autoinc
MUSID : number

DB3ID : autoinc
TekID: number
Money : currency
MoneyID : number

I want to select the sum of money grouping by moneyid and MUSID.
That is like
MUSID  MoneyID  Sum of Money
1              1                100
1              2                150
2              1                98

How can i do that with sql code ? I'm programming with delphi and none of the tables hav relationship between.


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select a.MusID, b.MoneyID, Sum(Money)
from db2 a join
db3 b
on a.tekid = b.tekid
Group by a.MusID, b.MoneyID

is the sql statement you are after if these are 3 tables which I am guessing is what you mean.

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meceAuthor Commented:
thanx for the way

it works with left join command
i learned it

oh right cool, happy to help.
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