how truncate one table so i can make a relationship with another

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how truncate one table so i can make a relationship with another

Postby QU5EWSBDQUxMQUdIQU4 » Mon, 16 Oct 2006 19:08:02 GMT

I have several tables that are linked with a common field, but one particular 
table needs formatting to make a relationship possible.eg

table order number shows as AD123.1 (table1)the other table AD1230000( table 
2).  I am looking for an expression to truncate both tables to have a field 
in each showing orders as AD123 to enable the linkage

thanks Andy  

Re: how truncate one table so i can make a relationship with another

Postby David F Cox » Mon, 16 Oct 2006 19:56:05 GMT

It looks like LEFT([yourkey],5) should do it.

You could create two queries to pre-select and massage the data with :
shortkey: LEFT([yourkey],5)

and use these as inputs to the queries that you wish to run.









Re: how truncate one table so i can make a relationship with another

Postby John Vinson » Tue, 17 Oct 2006 04:36:40 GMT

On Sun, 15 Oct 2006 03:08:02 -0700, ANDY CALLAGHAN




I'd VERY strongly suggest splitting this field into two in table
design view. Fields should be atomic; it appears that the Order number
consists of two parts, each with its own life - the AD123 and the rest
(1 or 0000 depending on the table).

Note that a Primary Key, and a table join, can consist of two (or ten
for that matter) fields, and that you can concatenate them for display
purposes.

                  John W. Vinson[MVP]    

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Hello all

i have 2 tables that are in a one to one relationship. the main table is the 
product table with a ProductID and a ProductTypeID. these 2 fields are the 
primary key on the tblProductList. i have another set of tables that stores 
the configuration of each type of product. the other table that i am trying 
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i hope all that makes sense.

when we add new products we use a form that allows us to do a lot of other 
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form is unbound and therefore it uses code to manage the additions and 
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this code was working fine. i have been working on it for over 3 hours 
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i keep getting an error message of duplicate key values being created. i 
checked out the line that the debugger points to and have played with it as 
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here is the relevant area of code:

        'gather variables and insert into the product table.
        If (error = False) Then
            If Me.cboProductType = "Compressor" Then
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SerialNumber, CustomerOrder, SiteID) VALUES ('" & Me.cboProductType & "', '" 
& Me.SerialNumber & "', '" & Me.CustomerOrder & "', " & site_id & ")"
                MsgBox sql
                DoCmd.RunSQL sql
            Else
                sql = "INSERT INTO tblProductList (ProductTypeID, 
SerialNumber, CustomerOrder, SiteID) VALUES ('" & Me.cboProductType & "', '" 
& Me.SerialNumber & "', '" & Me.CustomerOrder & "', " & site_id & ")"
                MsgBox sql
                DoCmd.RunSQL sql
            End If

            ' find the last productid that was created and store it into the 
variable product_id
            Set cn = CurrentProject.Connection
            Set rst_newproduct = cn.Execute("select MAX(ProductID) from 
tblProductList")
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an integer
            MsgBox "ProductID = " & product_id
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            Set rst_newproduct = Nothing
            cn.Close
            
            'if the user entered information into the CBA #, Electrical 
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information table
            newCompressorCheck = Me.CBANumber & Me.ElecPanelWO & Me.PLCPanelWO
            MsgBox newCompressorCheck, vbOKOnly, newCompressorCheck
            
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subdatatblCompressor just to know if it will be duplicated
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subdatatblCompressor")
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number into an integer
                MsgBox "ProductID = " & subdataproduct_id
                rst_newproduct.Close
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                cn.Close
                
                sql = "INSERT INTO subdatatblCompressor (ProductID, 
CBBAEngMaster, ElectricalPanelWO, SkidPanelWO) VALUES ('" & product_id & "', 
'" & Me.CBANumber & "', '" & Me.ElecPanelWO & "', '" & Me.PLCPanelWO & "')"
                MsgBox sql
                DoCmd.RunSQL sql
            End If

is there anything immeadiately obvious that is wrong with this?

i thought maybe the quotes around my SQL statements might be wrong, but 
after playing with them for a while i havent been able to make a change in 
the error i am getting.

if there is any other information i should post let me know. thanks in 
advance for any help with this.

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