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7.3

Selecting 1 row(rand) and updating it (Firebird+Delphi)

Asked by MerlaP83 in Interbase / Firebird Database, Delphi Database, MySQL Server

Hello,

I have a query that picks out 1 random result from a table based on different factors; however, after that result is picked the field "Klubbint" needs to be updated to intklubb.caption.

How to achieve this?

Tried some different methods, but failed to succeed and often got the msg "cannot update a complex query with more then one table." Any ideas(using Firebird)?

View the Solution FREE for 30 Days

         
             spelare.sql.Clear;
Spelare.sql.add('select First 1 S.*, L.* from Lag L join Spelare S on L.Klubb = S.Klubb');
Spelare.Sql.add('where S.Off > 14 and S.Personlighet < 5 and L.Ekonomi > S.Varde+300');
spelare.sql.add('and NOT S.klubb = '''+intklubb.caption+'''  ORDER BY IIF(S.Nation = '''+intland.caption+''', .2, .8) * RAND();');
Spelare.Open;
Spelare.First;

20091021-EE-VQP-81 - Hierarchy / EE_QW_3_20080625

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Selecting 1 row(rand) and updating it (Firebird+Delphi)

Asked by MerlaP83 in Interbase / Firebird Database, Delphi Database, MySQL Server

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