Thread View: cn.bbs.comp.lang.visual-basic
1 messages
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Started by panfock
Thu, 12 Apr 2007 03:18
Re: ��̹���VB�ж�ȡ��ݿ���ݵ�����
Author: panfock
Date: Thu, 12 Apr 2007 03:18
Date: Thu, 12 Apr 2007 03:18
38 lines
2538 bytes
2538 bytes
�� �� dqkit �Ĵ������ᵽ: ��
: ��λ��������֪����VB��ΰ���ݿ�����һ���������ijһ�е����ͳ�Ƴ���������Select count(*)=num from....��ȡ����ֻ����DataGrid��ʾ��������֪����ΰ�num��ֵ�ŵ�һ��textBox�����أ�лл��
: ������datagridʱ��Դ�룺
: Private Sub Command1_Click()
: Data1.RecordSource = "SELECT count(*),sum(*) FROM answered WHERE
: person=" & "'" & Text1.Text & "'"
: Data1.Refresh
: End Sub
: ��������һ���ı���������Ҫ�������ġ�
re:��֪������ı��������⣬�����ҵ�������������⣬���Ǻ���������˼��
���Dz�������
Private Sub Command1_Click()
Dim strsql As String
Dim con As New ADODB.Connection '������ݿ���
Dim rs As ADODB.Recordset '������ݼ�
'������ݿ�,���������ݿ��ļ����ļ����ֱ��������ȻҪд����ַ�
'������Ϊ�˷�������ODBC DSN���Դ
con.Open "DNS=mydatabase"
strsql = "select count(userid),sum(mark) from answered where person='" & Trim(text1.Text) & "'"
Set rs = con.Execute(strsql) 'ִ��SQL��������ݼ�
If Not rs.EOF Then
txtCount.Text = rs(0) '�ѷ���ֵ��ʾ��TEXTBOX��
txtSum.Text = rs(1)
End If
rs.Close
conn.Close
End Sub
--
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