testcheckpoint.java

来自「非常棒的java数据库」· Java 代码 · 共 46 行

/*
 * Copyright 2004-2008 H2 Group. Licensed under the H2 License, Version 1.0
 * (license2)
 * Initial Developer: H2 Group
 */
package org.h2.test.db;

import java.sql.Connection;
import java.sql.Statement;

import org.h2.test.TestBase;

/**
 * Tests the CHECKPOINT SQL statement.
 */
public class TestCheckpoint extends TestBase {

    public void test() throws Exception {
        // TODO test checkpoint with rollback, not only just run the command
        deleteDb("checkpoint");
        Connection c0 = getConnection("checkpoint");
        Statement s0 = c0.createStatement();
        Connection c1 = getConnection("checkpoint");
        Statement s1 = c1.createStatement();
        s1.execute("CREATE TABLE TEST(ID INT PRIMARY KEY, NAME VARCHAR(255))");
        s1.execute("INSERT INTO TEST VALUES(1, 'Hello')");
        s0.execute("CHECKPOINT");

        s1.execute("INSERT INTO TEST VALUES(2, 'World')");
        c1.setAutoCommit(false);
        s1.execute("INSERT INTO TEST VALUES(3, 'Maybe')");
        s0.execute("CHECKPOINT");

        s1.execute("INSERT INTO TEST VALUES(4, 'Or not')");
        s0.execute("CHECKPOINT");

        s1.execute("INSERT INTO TEST VALUES(5, 'ok yes')");
        s1.execute("COMMIT");
        s0.execute("CHECKPOINT");

        c0.close();
        c1.close();
    }

}