chx0501的专栏

数据库，jdbc验证--mysql 需要哦导入驱动jar包import java.sql.*;public class Mysql {//public static final String DBDRIVER = "org.gjt.mm.mysql.Driver";public static final String DBDRIVER = "com.mysql.jdbc

加入相应的数据库驱动包 验证代码如下：package com.study.jdbc;import java.sql.*;public class Mysql { //public static final String DBDRIVER ="oracle.jdbc.OracleDriver";//oracle //public static final String DBDRIVE

http://blog.chinaunix.net/uid-21162795-id-3436162.html 今天 select * from 表名 where to_days(时间字段名) = to_days(now()); 昨天 SELECT * FROM 表名 WHERE TO_DAYS( NOW( ) ) - TO_DAYS( 时间字段名) <= 1 7天 SELECT *