MYSQL教程
CREATE DATABASE test; // 創(chuàng)建一個名為test的數(shù)據(jù)庫

MYSQL教程
ALTER TABLE test ADD birthday date; // 修改test表,新增date類型的birthday列

MYSQL教程
DROP DATABASE test;// 刪除test數(shù)據(jù)庫

MYSQL教程
SET NAMES utf8;
SET FOREIGN_KEY_CHECKS = 0;
 
-- ----------------------------
-- Table structure for `city`
-- ----------------------------
DROP TABLE IF EXISTS `city`;
CREATE TABLE `city` (
 `id` int(11) NOT NULL DEFAULT '0' COMMENT '城市ID',
 `name` varchar(20) DEFAULT NULL COMMENT '名稱',
 `state` varchar(20) DEFAULT NULL COMMENT '狀態(tài)',
 `country` varchar(20) DEFAULT NULL,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
 
SET FOREIGN_KEY_CHECKS = 1;

MYSQL教程
/**
 * 描述:JDBC數(shù)據(jù)庫事務(wù)回滾
 *
 * Created by bysocket on 16/6/6.
 */
public class TransactionRollBack extends BaseJDBC {
 
  public static void main(String[] args) throws SQLException {
    Connection conn = null;
    try {
      // 加載數(shù)據(jù)庫驅(qū)動
      Class.forName(DRIVER);
      // 數(shù)據(jù)庫連接
      conn = DriverManager.getConnection(URL,USER,PWD);
 
      // 關(guān)閉自動提交的事務(wù)機制
      conn.setAutoCommit(false);
      // 設(shè)置事務(wù)隔離級別 SERIALIZABLE
      conn.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
 
      Statement stmt = conn.createStatement();
      int rows = stmt.executeUpdate("INSERT INTO city VALUES (3,'china',1,'cc')");
      rows = stmt.executeUpdate("UPDATE city set country = 'TAIWAN' WHERE id = 4");
 
      // 提交事務(wù)
      conn.commit();
    } catch (Exception e) {
      e.printStackTrace();
      // 回滾事務(wù)
      if (conn != null) {
        conn.rollback();
      }
    } finally {
      /** 關(guān)閉數(shù)據(jù)庫連接 */
      if (conn != null) {
        try {
          conn.close();
        } catch (SQLException e) {
          e.printStackTrace();
        }
      }
    }
  }
}

MYSQL教程
/**
 * 描述:JDBC數(shù)據(jù)庫事務(wù)回滾,回滾到特定的保存點
 *
 * Created by bysocket on 16/6/6.
 */
public class TransactionRollBack2 extends BaseJDBC {
  public static void main(String[] args) throws SQLException {
    Connection conn = null;
    Savepoint svpt = null;
    try {
      // 加載數(shù)據(jù)庫驅(qū)動
      Class.forName(DRIVER);
      // 數(shù)據(jù)庫連接
      conn = DriverManager.getConnection(URL,USER,PWD);
 
      // 關(guān)閉自動提交的事務(wù)機制
      conn.setAutoCommit(false);
      // 設(shè)置事務(wù)隔離級別 SERIALIZABLE
      conn.setTransactionIsolation(Connection.TRANSACTION_SERIALIZABLE);
 
      Statement stmt = conn.createStatement();
      int rows = stmt.executeUpdate("INSERT INTO city VALUES (3,'china',1,'cc')");
      // 設(shè)置事務(wù)保存點
      svpt = conn.setSavepoint();
      rows = stmt.executeUpdate("UPDATE city set country = 'TAIWAN' WHERE id = 4");
 
      // 提交事務(wù)
      conn.commit();
    } catch (Exception e) {
      e.printStackTrace();
      // 回滾事務(wù)
      if (conn != null) {
        conn.rollback(svpt);
      }
    } finally {
      /** 關(guān)閉數(shù)據(jù)庫連接 */
      if (conn != null) {
        try {
          conn.close();
        } catch (SQLException e) {
          e.printStackTrace();
        }
      }
    }
  }
}