-- 建表
CREATE TABLE sale_report (
???? sale_date DATE NOT NULL ,
???? sale_item VARCHAR(2) NOT NULL ,
???? sale_money DECIMAL(10,2) NOT NULL,
???? PRIMARY KEY(sale_date, sale_item)
);

-- 測試數(shù)據(jù)
DECLARE
v_begin_day DATE;
v_end_day DATE;
BEGIN
v_begin_day := TO_DATE('2009-01-01', 'YYYY-MM-DD');
v_end_day?? := TO_DATE('2010-01-01', 'YYYY-MM-DD');

WHILE v_begin_day < v_end_day LOOP
??? INSERT INTO SALE_REPORT VALUES(v_begin_day, 'A',?? 1 );
??? INSERT INTO SALE_REPORT VALUES(v_begin_day, 'B',?? 2 );
??? INSERT INTO SALE_REPORT VALUES(v_begin_day, 'C',?? 3 );
??? v_begin_day := v_begin_day + 1;
END LOOP;
END;
/

-- 測試函數(shù)
CREATE OR REPLACE FUNCTION HelloWorldFunc
RETURN VARCHAR2
AS
BEGIN
RETURN 'Hello World!';
END;
/

-- 測試存儲過程
CREATE OR REPLACE PROCEDURE HelloWorld2 (
p_user_name IN???? VARCHAR2,
p_out_val?? OUT??? VARCHAR2,
p_inout_val IN OUT VARCHAR2
) AS
BEGIN
?? dbms_output.put_line('Hello ' || p_user_name || p_inout_val || '!');
?? p_out_val := 'A';
?? p_inout_val := 'B';
END HelloWorld2;
/

-- 測試返回結(jié)果集的函數(shù)
create or replace package pkg_HelloWorld as
-- 定義ref cursor類型
type myrctype is ref cursor;
--函數(shù)申明
function getHelloWorld return myrctype;
end pkg_HelloWorld;
/

CREATE OR REPLACE package body pkg_HelloWorld as
function getHelloWorld return myrctype
IS
??? return_cursor myrctype;
BEGIN
??? OPEN return_cursor FOR 'SELECT ''Hello'' AS a, ''World'' AS B FROM dual';
??? return return_cursor;
END getHelloWorld;
end pkg_HelloWorld;
/

以上為數(shù)據(jù)庫表、測試數(shù)據(jù)、存儲過程腳本

下面為 C#樣例代碼

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Data.OracleClient;

namespace A0170_Oracle.Sample
{

??? /// <summary>
??? /// 用于 訪問 Oracle 數(shù)據(jù)庫 存儲過程與函數(shù) 的樣例。
??? ///
??? /// 注意：這個樣例所使用的 表 和 數(shù)據(jù)， 請參考項(xiàng)目下的 Schema.sql 文件。
??? ///
??? /// </summary>
??? class CallOracleFuncProc
??? {
??????? /// <summary>
??????? /// Oracle 的數(shù)據(jù)庫連接字符串.
??????? /// </summary>
??????? private const String connString =
??????????? @"Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.210)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL)));User Id=TEST;Password=TEST123";

??????? public void TestCallFuncProc()
??????? {
??????????? // 建立數(shù)據(jù)庫連接.
??????????? OracleConnection conn = new OracleConnection(connString);

??????????? // 打開連接.
??????????? conn.Open();

??????????? // 調(diào)用 Oracle 函數(shù).
??????????? CallFunc(conn);

??????????? // 調(diào)用 Oracle 返回結(jié)果集的函數(shù)
??????????? CallFuncWithTable(conn);

??????????? // 調(diào)用存儲過程
??????????? CallProcedure(conn);

??????????? // 關(guān)閉數(shù)據(jù)庫連接.
??????????? conn.Close();
??????? }

??????? /// <summary>
??????? /// 測試 調(diào)用 Oracle 函數(shù).
??????? /// </summary>
??????? private void CallFunc(OracleConnection conn)
??????? {
??????????? // 創(chuàng)建一個 Command.
??????????? OracleCommand testCommand = conn.CreateCommand();

??????????? // 定義須要運(yùn)行的SQL語句.
??????????? testCommand.CommandText = "SELECT HelloWorldFunc() FROM dual";

??????????? // 運(yùn)行SQL命令，結(jié)果存儲到Reader中.
??????????? OracleDataReader testReader = testCommand.ExecuteReader();

??????????? // 處理檢索出來的每一條數(shù)據(jù).
??????????? while (testReader.Read())
??????????? {
??????????????? // 將檢索出來的數(shù)據(jù)，輸出到屏幕上.
??????????????? Console.WriteLine("調(diào)用函數(shù):{0}; 返回:{1}",
??????????????????? testCommand.CommandText, testReader[0]
??????????????????? );
??????????? }

??????????? // 關(guān)閉Reader.
??????????? testReader.Close();
??????? }

??????? /// <summary>
??????? /// 測試 調(diào)用 Oracle 返回結(jié)果集的函數(shù).
??????? /// </summary>
??????? private void CallFuncWithTable(OracleConnection conn)
??????? {
??????????? // 創(chuàng)建一個 Command.
??????????? OracleCommand testCommand = conn.CreateCommand();

??????????? // 定義須要運(yùn)行的SQL語句.
??????????? testCommand.CommandText = "pkg_HelloWorld.getHelloWorld";

??????????? // 定義好，本次運(yùn)行的類型，是存儲過程.
??????????? testCommand.CommandType = CommandType.StoredProcedure;

??????????? // 定義好，我這個參數(shù)，是 游標(biāo) + 返回值.
??????????? OracleParameter para = new OracleParameter("c", OracleType.Cursor);
??????????? para.Direction = ParameterDirection.ReturnValue;
??????????? testCommand.Parameters.Add(para);

??????????? // 運(yùn)行SQL命令，結(jié)果存儲到Reader中.
??????????? OracleDataReader testReader = testCommand.ExecuteReader();

??????????? // 處理檢索出來的每一條數(shù)據(jù).
??????????? while (testReader.Read())
??????????? {
??????????????? // 將檢索出來的數(shù)據(jù)，輸出到屏幕上.
??????????????? Console.WriteLine("調(diào)用函數(shù):{0}; 返回:{1} - {2}",
??????????????????? testCommand.CommandText, testReader[0], testReader[1]
??????????????????? );
??????????? }

??????????? // 關(guān)閉Reader.
??????????? testReader.Close();
??????? }

??????? /// <summary>
??????? /// 測試運(yùn)行存儲過程.
??????? /// </summary>
??????? /// <param name="conn"></param>
??????? private void CallProcedure(OracleConnection conn)
??????? {
??????????? // 創(chuàng)建一個 Command.
??????????? OracleCommand testCommand = conn.CreateCommand();

??????????? // 定義須要運(yùn)行的SQL語句.
??????????? testCommand.CommandText = "HelloWorld2";

??????????? // 定義好，本次運(yùn)行的類型，是存儲過程.
??????????? testCommand.CommandType = CommandType.StoredProcedure;

??????????? // 定義要查詢的參數(shù).
??????????? // 第一個參數(shù)，是輸入的.
??????????? testCommand.Parameters.Add(new OracleParameter("p_user_name", "HeiHei"));

??????????? // 第2個參數(shù)，是輸出的.
??????????? OracleParameter para2 = new OracleParameter("p_out_val", OracleType.VarChar, 10);
??????????? para2.Direction = ParameterDirection.Output;
??????????? testCommand.Parameters.Add(para2);

??????????? // 第3個參數(shù)，是既輸入又輸出的.
??????????? OracleParameter para3 = new OracleParameter("p_inout_val", OracleType.VarChar, 20);
??????????? para3.Direction = ParameterDirection.InputOutput;
??????????? para3.Value = "HAHA";
??????????? testCommand.Parameters.Add(para3);

??????????? // ExecuteNonQuery 方法，表明本次操作，不是一個查詢的操作。將沒有結(jié)果集合返回.
??????????? // 返回的數(shù)據(jù)，將是 被影響的記錄數(shù).
??????????? int insertRowCount = testCommand.ExecuteNonQuery();

??????????? // 存儲過程運(yùn)行完成后，取得 output 出來的數(shù)據(jù).
??????????? String pa2 = testCommand.Parameters["p_out_val"].Value.ToString();
??????????? String pa3 = testCommand.Parameters["p_inout_val"].Value.ToString();

??????????? Console.WriteLine("調(diào)用 {0} 存儲過程之后， p_out_val={1}; p_inout_val={2}", testCommand.CommandText, pa2, pa3);

??????? }

??? }
}