how to insert data from one table to the other by column for the same item

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I have table A and B
A.
HoleNo - Depth_From - Depth_to
A1 - 12 - 14
A1 - 2 - 6
A1 3 - 5
A1 - 4 - 6

B.
HoleNo - Depth_From - Depth_to

Now I want to insert data from table A by column thus I want to insert data from table A by inserting all hole numbers then followed by depth_from then depth_to without making any changes to the order.
The most difficult aspect for me is that no changes must be made to table A.
I have tried to insert and update but cant get any key to use.

I would like to achieve this using DATA TABLE

Posted 27-Feb-13 4:04am

wizy@2020

Updated 27-Feb-13 4:08am

v2

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[no name] 27-Feb-13 10:09am

Your question does not make any sense. What does the order in the database have to with anything? A simple INSERT statement is all you should need.

wizy@2020 28-Feb-13 2:57am

this is what I actually want to achieve.
I have two tables as I have already shown.
Table A
HoleNo Depth_from Depth_to
A1 1 2
A1 3 4
A1 5 6

Table B
HoleNo Depth_from Depth_to
A1
A1
A1

Now How do I update table B so that it looks like table A
Note that no changes must be made to table A.

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TnTinMn · Answer 1 · 2013-02-27T04:54:00

Solution 1

I suspect that what you want is to get a sorted view of the data and you believe that you need to make a new table to achieve it.

Dim dt As New DataTable
Dim r As DataRow
With dt
   .Columns.Add("HoleNo", GetType(String))
   .Columns.Add("Depth_From", GetType(Double))
   .Columns.Add("Depth_To", GetType(Double))
   r = .NewRow : r(0) = "A1" : r(1) = 12 : r(2) = 14 : .Rows.Add(r)
   r = .NewRow : r(0) = "A1" : r(1) = 2 : r(2) = 6 : .Rows.Add(r)
   r = .NewRow : r(0) = "A1" : r(1) = 3 : r(2) = 5 : .Rows.Add(r)
   r = .NewRow : r(0) = "A1" : r(1) = 4 : r(2) = 6 : .Rows.Add(r)
   .DefaultView.Sort = "[HoleNo] ASC, [Depth_From] ASC, [Depth_To] ASC"
End With
dgv1.DataSource = dt.DefaultView

Posted 27-Feb-13 4:54am

TnTinMn

Comments

wizy@2020 27-Feb-13 11:28am

I understand your solution very well.
But I have to save all HoleNo in table B from Table A first and go back to Table A,pick values under Depth_from and come to update Table B in that order.

TnTinMn 27-Feb-13 12:22pm

Not sure if I understand you correctly, but you can make an ordered copy based on my previous example with this.

Dim dt2 As DataTable = dt.Clone()
For Each dvr As DataRowView In dt.DefaultView
dt2.ImportRow(dvr.Row)
Next

wizy@2020 28-Feb-13 2:59am

this is what I actually want to achieve.
I have two tables as I have already shown.
Table A
HoleNo Depth_from Depth_to
A1 1 2
A1 3 4
A1 5 6

Table B
HoleNo Depth_from Depth_to
A1
A1
A1

Now How do I update table B so that it looks like table A
Note that no changes must be made to table A.