Access query from VB.NET - To insert data though they are NULL -

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i need insert data db db. run query vb.net:

for example:

insert dbdestino.tabladest (campo1,campo2) select valor1,valor2  dborigen.tablaorigen

field "campo1" integer (in dbdestino)

but value "valor1" (in dborigen) null. if run previous query, returns error , not insert data.

how can insert data though "valor1" null?

i doubt problem due null values in valor1, unless campo1 field rejects nulls.

you need insert statement access' database engine accept. example, statement executed in access dbdestino.mdb open:

insert tabladest ( campo1, campo2 ) select valor1, valor2 tablaorigen in 'c:\access\dborigen.mdb';

i'm not proficient vb.net, think can open connection dbdestino.mdb, , execute same insert statement works in access.

imports system.data.oledb module module1     dim cn oledbconnection     dim cmd oledbcommand     dim icount integer     dim strinsert string     sub main()         cn = new oledbconnection("provider=microsoft.jet.oledb.4.0;" & _                                  "data source=c:\access\dbdestino.mdb;")         cn.open()         strinsert = "insert tabladest ( campo1, campo2 ) " & _             "select valor1, valor2 " & _             "from tablaorigen in 'c:\access\dborigen.mdb';"         cmd = new oledbcommand(strinsert, cn)         icount = cmd.executenonquery         debug.print(icount)         cn.close()     end sub end module

i tested on system, , values tablaorigen inserted tabladest, nulls included.


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