select records from 3 tables without repeat

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i have these tables:
table1: id,name,item_id
item: id,name
itembarcode: id,item_id,barcode

in itembarcode table every item_id has many barcode

i make the following sql:

select a.*, b.name as itemname,c.barcode from table1 a,item b,itembarcode c where a.id<>0 and b.id=a.item_id and c.item_id=a.item_id

in this statement i get every record in table1 but repeated for every barcode in itembarcode for every item
i want to select in only one of barcodes for every item (any barcode of it) "no repeat"

what can i do in this statement?

Posted 22-Jul-14 11:29am

M. Daban

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Peter Leow · Accepted Answer · 2014-07-22T14:55:00

Solution 1

Try this:

SQL

select distinct a.*, b.name as itemname,
(select top 1 c1.barcode from itembarcode c1 where c1.item_id=c.item_id)
from
table1 a,item b,itembarcode c where
b.id=a.item_id and c.item_id=a.item_id

Suggest you learn to use JOIN [^] in future.

Posted 22-Jul-14 14:55pm

Peter Leow

Updated 22-Jul-14 15:03pm

v2

Comments

M. Daban 23-Jul-14 4:38am

Yes, its work thankyou

Peter Leow 23-Jul-14 6:20am

You are welcome.