PL/SQL 代码:
CREATE OR REPLACE PACKAGE "SCOTT"."PKG_TEST" AS
       TYPE myrcType IS REF CURSOR;
       FUNCTION get(strbarcode VARCHAR) RETURN myrcType;
END pkg_test;

CREATE OR REPLACE PACKAGE BODY "SCOTT"."PKG_TEST" AS
    FUNCTION get(strbarcode IN VARCHAR) RETURN myrcType IS
      rc myrcType;
    BEGIN
      OPEN rc FOR strbarcode;
      RETURN rc;
    END get;
END pkg_test;
--------------------------------------------------------------------------------------------------------
VB 代码:
Private Sub Command1_Click()
On Error GoTo cursorErr:
    Dim cnn As New ADODB.Connection
    Dim rst As New ADODB.Recordset
    Dim cmd As New ADODB.Command
   
    cnn.ConnectionString = "Provider=OraOLEDB.Oracle.1;Password=tiger;Persist Security Info=True;User ID=scott;Data Source=oraAny;Extended Properties=PLSQLRSet=1"
    cnn.Open
   
    With cmd
        .ActiveConnection = cnn
        .CommandType = adCmdText
        .CommandText = "{CALL scott.pkg_test.get(?)}"
        .Parameters.Append .CreateParameter("strBarCode", adVarChar, adParamInput, 100, "SELECT * FROM TAB")
    End With
   
    rst.CursorType = adOpenStatic
    rst.LockType = adLockReadOnly
    Set rst.Source = cmd
    rst.Open
   
    MsgBox rst.RecordCount

    Set rst = Nothing
    Set cmd = Nothing
    Exit Sub

cursorErr:
    Set cmd = Nothing
    Set rst1 = Nothing
    MsgBox Err.Description
End Sub
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