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LinkBack | Outils de la discussion |
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#1 |
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Messages: n/a
Hébergeur: |
Hi,
my query is: SELECT a.symbol_art,b.node_key FROM artykuly a, art_podz b WHERE a.symbol_art=b.symbol_art ------------- ------------------- table: artykuly table art_pod a.symbol_art b.symbol_art AA-0001 AA-0001 = record ok AA-0002 NULL = >>>>>>>>> I want to view diference records symbol_art in two tables How select all a.symbol_art where in table art_podz b.symbol_art is no exists? tnx. Tom |
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#2 |
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Messages: n/a
Hébergeur: |
info (informatyk@fitness[CUT]authority.pl) writes:
> my query is: > > SELECT a.symbol_art,b.node_key > > FROM artykuly a, art_podz b > > WHERE a.symbol_art=b.symbol_art > > ------------- ------------------- > > table: artykuly table art_pod > > a.symbol_art b.symbol_art > > AA-0001 AA-0001 = record ok > > AA-0002 NULL = >>>>>>>>> I want to view diference > records symbol_art in two tables > > How select all a.symbol_art where in table art_podz b.symbol_art is no > exists? You need to use an outer join: SELECT a.symbol_art,b.node_key FROM artykuly a LEFT JOIN art_podz b ON a.symbol_art=b.symbol_art With an outer join all rows in the table on the outer side, left here, are maintained in the result set. -- Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se Books Online for SQL Server 2005 at http://www.microsoft.com/technet/pro...ads/books.mspx Books Online for SQL Server 2000 at http://www.microsoft.com/sql/prodinf...ons/books.mspx |
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#3 |
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Messages: n/a
Hébergeur: |
Research information on joins. This includes inner joins, left outer join,
right outer join, full outer join and cross joins -- Sincerely, John K Knowledgy Consulting, LLC knowledgy.org Atlanta's Business Intelligence and Data Warehouse Experts "info" <informatyk@fitness[CUT]authority.pl> wrote in message news:fl2785$f5k$1@news2.task.gda.pl... > Hi, > > my query is: > > SELECT a.symbol_art,b.node_key > > FROM artykuly a, art_podz b > > WHERE a.symbol_art=b.symbol_art > > ------------- ------------------- > > table: artykuly table art_pod > > a.symbol_art b.symbol_art > > AA-0001 AA-0001 = record ok > > AA-0002 NULL = >>>>>>>>> I want to view > diference records symbol_art in two tables > > How select all a.symbol_art where in table art_podz b.symbol_art is no > exists? > > tnx. > > Tom > > > > > > > > |
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