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    Dim cn As ADODB.Connection
    Dim rs     As ADODB.Recordset
    Set cn = New ADODB.Connection
    cn.Open "Provider=OraOLEDB.Oracle.1;Persist Security Info=True;User Id=system;Password=bupt8971;Data Source=TEST;"
   
    strQuery = "select   *   from   Patrol"
    Set rs = New ADODB.Recordset
    rs.Open strQuery, cn, adOpenStatic, adLockOptimistic
    cmbID.Text = ""
    cmbName.Text = ""
    If rs.EOF Then
    Else
    While Not rs.EOF
        cmbID.AddItem rs(0)
        cmbName.AddItem rs(1)
        rs.MoveNext
    Wend
    End If
         cn.Close


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CREATE TABLE student (
    xh number primary key,   
    Name varchar2(10) not null);
   
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CREATE SEQUENCE student_seq   
START WITH 1   
INCREMENT BY 1
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CREATE [OR REPLACE] DIRECTORY directory AS 'pathname';
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create or replace directory exp_dir as '/tmp';
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