一、需求

傳入一個參數，返回多條記錄（列表）。

二、實現步驟

　　1. 編寫Oracle存儲過程。

-- 聲明包和包體的語句應該分兩次執行，即使聲明在前定義在後，如果一起執行依然會編譯出錯
-- 調用能夠返回多條記錄的存儲過程需要定義在包內



--聲明包及包內的遊標、存儲過程
CREATE OR REPLACE PACKAGE pack_myPackage IS
    TYPE myCursor IS REF CURSOR;
    PROCEDURE proc_querySomeInfo(pNo IN VARCHAR2, myCursor OUT myCursor);
 
END myPackage;



--定義包體
CREATE OR REPLACE PACKAGE BODY pack_myPackage IS

PROCEDURE proc_querySomeInfo(pNo IN VARCHAR2, outcursor OUT myCursor) IS
BEGIN
    OPEN outcursor FOR
        SELECT * FROM tableA WHERE P_NO = pNo;
END proc_querySomeInfo;

END pack_myPackage;

　　2. 編寫Java代碼

package vip.yaocn.test;
 
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;/**
 * 存儲過程測試
 *
 * @author yacon
 */
public class ProcedureTest {
    public static void main(String[] args) throws Exception {
        String url = "jdbc:oracle:thin:@127.0.0.1:1521:orcl";
        String driverName 
 
= "oracle.jdbc.driver.OracleDriver";
        String username = "scott";
        String password = "tiger";
        Connection conn = null;
        CallableStatement cstmt = null;
        ResultSet rs = null;
        try {
            Class.forName(driverName);
            conn = DriverManager.getConnection(url, username, password);
            String callSql = "{call pack_myPackage.proc_getSomeInfo(?, ?) }";
            cstmt = conn.prepareCall(callSql);
            cstmt.setString(1, "1001");
            cstmt.registerOutParameter(2, oracle.jdbc.OracleTypes.CURSOR);
            cstmt.execute();
            rs = (ResultSet) cstmt.getObject(2);
            if (rs != null) {
                while (rs.next()) {
                    System.out.println(rs.getString(1));
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (rs != null) {
                    rs.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if (cstmt != null) {
                    cstmt.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if (conn != null) {
                    conn.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}

　　3. 拓展知識

　　（1）

做一個，記一篇 — Java調用Oracle存儲過程