String chain and SQL

In a group of records I have two fields
"Productor" and "Field" defined as STRING
As the user enter it, data is as such

Productor    Lote
-------------------
PPK            5452
PPK            2012
PPK            8523

I need a group button in the form (data is displayed in continuous form) to change for each record :

PPK is deleted and the third digit of the Lote is put in Productor. The fourth and first digit are now first and second and the second digit is the third so data will become :

Productor      Lote
--------------------

5                  254
1                  220
2                  385

I will like it to be SQL statement, so I can put the boton on any form.

Thamk you                    



maguerezAsked:
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dannywarehamCommented:
What do you want it to update?
Do you want it to change the table value? Just show the value on the form?
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GRayLCommented:
Update table (Productor, Lote) select mid(Lote,3,1), Right(Lote,1) & Left(Lote,2) From table;
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maguerezAuthor Commented:
I want to change the data in the table
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dannywarehamCommented:
GRayL has teh answer for you then

An UPDATE query.   :-)
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maguerezAuthor Commented:
I have a syntax error :
DoCmd.RunSQL "UPDATE CCCit (Productor,NºLote) SELECT mid(NºLote,3,1), Right(NºLote,1) & Left(NºLote,2) From CCCit Where [nopartida]=[formularios].[Controlcalidadmaster].[nopartida]"

argghh !
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maguerezAuthor Commented:
Can anybody help on the syntax problem ?
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GRayLCommented:
DoCmd.RunSQL "UPDATE CCCit (Productor,NºLote) SELECT mid(NºLote,3,1), Right(NºLote,1) & Left(NºLote,2) From CCCit Where [nopartida]='" & [formularios].[Controlcalidadmaster].[nopartida] & "';"

If [nopartida] is a number remove the single quotes. This Query assumes [nopartida] is a string.
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maguerezAuthor Commented:
I  have still a syntax error "3144" in your expression and in the one I have slightly modified.



DoCmd.RunSQL "UPDATE CCCit (Productor,NºLote) SET [Productor]= mid([NºLote],3,1),[NºLote]= Right([NºLote],1) & Left([NºLote],2) From CCCit Where [nopartida]= '" & Me.nopartida & "'"
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GRayLCommented:

I'm not sure if quoting the fields is causing the error: Try:

DoCmd.RunSQL "UPDATE CCCit SET [Productor]= mid([NºLote],3,1),[NºLote]= Right([NºLote],1) & Left([NºLote],2) From CCCit Where [nopartida]= '" & Me.nopartida & "'"
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