select average data from database group by index and show it into datagridview
1
I have datatable with 4 columns (Nama, CoIndex, RowIndex and Nilai).
I want to select the average data (Nilai) from database group by same CoIndex, RowIndex and show it into DataGridView
I'm not really sure how to do or approach this. Any help is greatly appreciated.
Dim cmd As MySqlCommand
Dim rs As MySqlDataReader
cmd = New MySqlCommand("select from `tb_kuisioner` ", Connector)
rs = cmd.ExecuteReader
If rs.HasRows Then
While rs.Read
If Val(rs("rowIndex")) > Val(rs("colIndex")) Then
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(Format(rs("nilai"), "0.000"))
Else
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(rs("nilai"))
End If
End While
rs.Close()
vb.net
edited Nov 26 '18 at 10:30
Happypig375
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
add a comment |
1
I have datatable with 4 columns (Nama, CoIndex, RowIndex and Nilai).
I want to select the average data (Nilai) from database group by same CoIndex, RowIndex and show it into DataGridView
I'm not really sure how to do or approach this. Any help is greatly appreciated.
Dim cmd As MySqlCommand
Dim rs As MySqlDataReader
cmd = New MySqlCommand("select from `tb_kuisioner` ", Connector)
rs = cmd.ExecuteReader
If rs.HasRows Then
While rs.Read
If Val(rs("rowIndex")) > Val(rs("colIndex")) Then
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(Format(rs("nilai"), "0.000"))
Else
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(rs("nilai"))
End If
End While
rs.Close()
vb.net
edited Nov 26 '18 at 10:30
Happypig375
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
1
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
it works.... thank you
– Student
Nov 27 '18 at 5:36
add a comment |
1
1
1
I have datatable with 4 columns (Nama, CoIndex, RowIndex and Nilai).
I want to select the average data (Nilai) from database group by same CoIndex, RowIndex and show it into DataGridView
I'm not really sure how to do or approach this. Any help is greatly appreciated.
Dim cmd As MySqlCommand
Dim rs As MySqlDataReader
cmd = New MySqlCommand("select from `tb_kuisioner` ", Connector)
rs = cmd.ExecuteReader
If rs.HasRows Then
While rs.Read
If Val(rs("rowIndex")) > Val(rs("colIndex")) Then
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(Format(rs("nilai"), "0.000"))
Else
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(rs("nilai"))
End If
End While
rs.Close()
vb.net
edited Nov 26 '18 at 10:30
Happypig375
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
I have datatable with 4 columns (Nama, CoIndex, RowIndex and Nilai).
I want to select the average data (Nilai) from database group by same CoIndex, RowIndex and show it into DataGridView
I'm not really sure how to do or approach this. Any help is greatly appreciated.
Dim cmd As MySqlCommand
Dim rs As MySqlDataReader
cmd = New MySqlCommand("select from `tb_kuisioner` ", Connector)
rs = cmd.ExecuteReader
If rs.HasRows Then
While rs.Read
If Val(rs("rowIndex")) > Val(rs("colIndex")) Then
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(Format(rs("nilai"), "0.000"))
Else
dg1.Item(rs("colIndex"), rs("rowIndex")).Value = Val(rs("nilai"))
End If
End While
rs.Close()
vb.net
vb.net
edited Nov 26 '18 at 10:30
Happypig375
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
edited Nov 26 '18 at 10:30
Happypig375
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
edited Nov 26 '18 at 10:30
Happypig375
646726
edited Nov 26 '18 at 10:30
Happypig375
646726
edited Nov 26 '18 at 10:30
Happypig375
646726
646726
asked Nov 26 '18 at 10:21
StudentStudent
92
asked Nov 26 '18 at 10:21
StudentStudent
92
asked Nov 26 '18 at 10:21
StudentStudent
92
92
What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
1
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
it works.... thank you
– Student
Nov 27 '18 at 5:36
add a comment |
What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
1
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
it works.... thank you
– Student
Nov 27 '18 at 5:36
What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
1
1
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
it works.... thank you
– Student
Nov 27 '18 at 5:36
it works.... thank you
– Student
Nov 27 '18 at 5:36
add a comment |
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What errors do you get when you run your code?
– preciousbetine
Nov 26 '18 at 12:37
Are you trying to group in the SQL query?
– Nathan Champion
Nov 26 '18 at 15:44
1
You should first build a query that returns what you need. Then put the data in the database. Some thing like: select CoIndex, RowIndex, avg(Nilai) from tb_kuisioner group by ColIndex, RowIndex
– the_lotus
Nov 26 '18 at 15:55
it works.... thank you
– Student
Nov 27 '18 at 5:36