此示例使用在 Oracle 中定义的表 Scott/Tiger 架构。 默认,Oracle Scott/Tiger 架构附带标准 Oracle 安装。
CREATE TABLE DEPT
(DEPTNO NUMBER(2,0) NOT NULL,
DNAME VARCHAR2(14) NULL,
LOC VARCHAR2(13) NULL,
PRIMARY KEY (DEPTNO)
);
INSERT INTO Dept VALUES(11,'Sales','Texas');
INSERT INTO Dept VALUES(22,'Accounting','Washington');
INSERT INTO Dept VALUES(33,'Finance','Maine');
CREATE TABLE EMP
(EMPNO NUMBER(4,0) NOT NULL,
ENAME VARCHAR2(10) NULL,
JOB VARCHAR2(9) NULL,
MGR NUMBER(4,0) NULL,
HIREDATE DATE NULL,
SAL NUMBER(7,2) NULL,
COMM NUMBER(7,2) NULL,
DEPTNO NUMBER(2,0) NULL,
FOREIGN KEY (DEPTNO) REFERENCES DEPT(DEPTNO),
PRIMARY KEY (EMPNO)
);
INSERT INTO Emp VALUES(123,'Bob','Sales',555,'28-JAN-79',35000,12,30);
INSERT INTO Emp VALUES(321,'Sue','Finance',555,'12-MAY-83',42000,12,10);
INSERT INTO Emp VALUES(234,'Mary','Account',555,'14-AUG-82',33000,12,20);
CREATE OR REPLACE PACKAGE curspkg_join AS
TYPE t_cursor IS REF CURSOR ;
Procedure open_join_cursor1 (n_EMPNO IN NUMBER, io_cursor IN OUT t_cursor);
END curspkg_join;
/
CREATE OR REPLACE PACKAGE BODY curspkg_join AS
Procedure open_join_cursor1 (n_EMPNO IN NUMBER, io_cursor IN OUT t_cursor)
IS
v_cursor t_cursor;
BEGIN
IF n_EMPNO <> 0
THEN
OPEN v_cursor FOR
SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME
FROM EMP, DEPT
WHERE EMP.DEPTNO = DEPT.DEPTNO
AND EMP.EMPNO = n_EMPNO;
ELSE
OPEN v_cursor FOR
SELECT EMP.EMPNO, EMP.ENAME, DEPT.DEPTNO, DEPT.DNAME
FROM EMP, DEPT
WHERE EMP.DEPTNO = DEPT.DEPTNO;
END IF;
io_cursor := v_cursor;
END open_join_cursor1;
END curspkg_join;
/
Imports System.Data.OracleClient
Dim x As Exception
Dim Ds As New DataSet()
Dim Oraclecon As New OracleConnection("Server=YourOracle;Uid=uid;Pwd=pwd")
Oraclecon.Open()
Dim myCMD As New OracleCommand()
myCMD.Connection = Oraclecon
myCMD.CommandText = "curspkg_join.open_join_cursor1"
myCMD.CommandType = CommandType.StoredProcedure
myCMD.Parameters.Add(New OracleParameter("n_empno", OracleType.Number)).Value = 123
myCMD.Parameters.Add(New OracleParameter("io_cursor", OracleType.Cursor)).Direction = ParameterDirection.Output
Dim MyDA As New OracleDataAdapter(myCMD)
Try
MyDA.Fill(Ds)
Catch x
MessageBox.Show(x.Message.ToString)
End Try
DataGrid1.DataSource = Ds.Tables(0)
Oraclecon.Close()