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1. Á¬½Ómysql:
mysqlbinmysql -hÖ÷»úµØÖ· -u Óû§Ãû £­p Óû§ÃÜÂë
2.Í˳ömysql:exit
3. ÐÞ¸ÄÃÜÂë:
mysqlbinmysqladmin -uroot -p(oldpassword) password newpassword
4.Ôö¼ÓÓû§£º
Ìí¼ÓÒ»¸öÓû§test1 ÃÜÂëΪABC£»ÈÃËû¿ÉÒÔÔÚÈκÎÖ÷»úÉϵǼ,²¢¶ÔËùÓÐÊý¾Ý¿âÓвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄȨÏÞ¡£Ê×ÏÈÓÃÒÔrootÓû§Á¬Èë
mysql,È»ºó¼üÈëÒÔÏÂÃüÁgrant select,insert,update,delete on *.* to test1@"%" Identified
by "abc";
Ôö¼ÓÒ»¸öÓû§test2ÃÜÂëΪabc,ÈÃÆäÖ»¿ÉÒÔÔÚlocalhostÉϵǼ,²¢¿ÉÒÔ¶ÔÊý¾Ý¿âmydb½øÐвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄ²Ù×÷£¨localhostÖ¸±¾µØ
Ö÷»ú,¼´mysqlÊý¾Ý¿âËùÔÚµÄÄÇ̨Ö÷»ú£©,ÕâÑùÓû§¼´Ê¹ÓÃÖªµÀtest2µÄÃÜÂ룬ҲÎÞ·¨´ÓinternetÉÏÖ±½Ó·ÃÎÊÊý¾Ý¿â,Ö»ÄÜͨ¹ýmysqlÖ÷»úÉϵÄwebÒ³
À´·ÃÎÊÁË¡£grant select,insert,update,delete on mydb.* to test2@localhost identified by "abc";
Ôö¼ÓÒ»¸ö¿ÉÒÔ´ÓÈκεط½Á¬½Ó·þÎñÆ÷µÄÒ»¸öÍêÈ«µÄ³¬¼¶Óû§
grant all privileges on *.* to test3@"%" identified by 'password' with grant option;
5.ɾ³ýÊÚȨ
revoke select,insert,update,delete om *.* from test2@localhost ;
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6.ÏÔʾÊý¾Ý¿â
show databases;
7.ÏÔʾÊý¾Ý¿âÖеıí
use dataname£»
show tables£»
8.ÏÔʾ±íµÄ½á¹¹
describe tablesname;
9.½¨¿â
create database ¿âÃû;
10.½¨±í
use dataname;
create table teacher //½¨Á¢±íTEACHER
(
id int(3) auto_increment not null primary key,
name char(10) not null,
address varchar(50) default 'ÉîÛÚ',
year date
); //½¨±í½áÊø
//ÒÔÏÂΪ²åÈë×Ö¶Î
insert into teacher values('','glchengang','ÉîÛÚÒ»ÖÐ','1976-10-10');
insert into teacher values('','jack','ÉîÛÚÒ»ÖÐ','1975-12-23');
×¢£ºÔÚ½¨±íÖÐ
(1) ½«IDÉèΪ³¤¶ÈΪ3µÄÊý×Ö×Ö¶Î:int(3)£¬²¢ÈÃËüÿ¸ö¼Ç¼×Ô¶¯¼ÓÒ»: auto_increment£¬
²¢²»ÄÜΪ¿Õ:not null£¬¶øÇÒÈÃËü³ÉΪÖ÷×Ö¶Îprimary key
(2) ½«NAMEÉèΪ³¤¶ÈΪ10µÄ×Ö·û×Ö¶Î
(3) ½«ADDRESSÉèΪ³¤¶È50µÄ×Ö·û×ֶΣ¬¶øÇÒȱʡֵΪÉîÛÚ¡£varcharºÍcharÓÐÊ²Ã´Çø±ð
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(4) ½«YEARÉèΪÈÕÆÚ×ֶΡ£
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package com.wxpn.tutorial.db;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;
import java.util.Date;
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¡¡¡¡SQL> select to_char(sysdate,'yyyy-mm-dd') from dual;
¡¡¡¡SQL> select to_char(sysdate,'hh24-mi-ss') from dual;
¡¡¡¡mysql> select date_format(now(),'%Y-%m-%d');
¡¡¡¡mysql> select time_format(now(),'%H-%i-%S');
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