1、登录mysql数据库，在test数据库中新建一个shoufei表:：id、时间、项目、价坼黉赞楞格、数量、金额。 Create Table CREATETABLE`shouf髫潋啜缅ei`(`id`int(11)NOTNULLAUTO_INCREMENT,`shijian`timestampNOTNULLDEFAULTCURRENT_TIMESTAMP,`xiangmu`varchar(20)NOTNULL,`jiage`floatNOTNULL,`shuliang`int(11)NOTNULL,`jine`floatDEFAULTNULL,PRIMARYKEY(`id`))ENGINE=InnoDBDEFAULTCHARSET=utf8
2、在shoufei表中增加5条数据：INSERT INTO shoufei(xiangmu,jiage,shuli锾攒揉敫ang) VALUES('感冒药',10,10);INSERT INTO shoufei(xiangmu,jiage,shuliang) VALUES('甘草片',15,2);INSERT INTO shoufei(xiangmu,jiage,shuliang) VALUES('阿莫西林',20,2);INSERT INTO shoufei(xiangmu,jiage,shuliang) VALUES('午时茶',8,1);INSERT INTO shoufei(xiangmu,jiage,shuliang) VALUES('银翘解毒丸',2,10);
3、把shoufei表的金额修改一下：UPDATE shoufei SET jine=jiage*shuliang;
4、查看shoufei表的数据：SELECT * FROM shoufei;
5、把shoufei表的数据存储到c:\shoufei.txt文件中：SELECT * INTO OUTFILE 'c:\shoufei.txt' FROM shoufei;
6、查看c:\shoufei.txt这个文件的数据。
7、把c:\shoufei.txt中的数据恢复到数据库shoufei表中，替换数据，当表的数据和备份的数据一样的话，替换数据，当前没有的数据增加到表中。LOAD DATA INFILE 'c:\shoufei.txt' REPLACE INTO TABLE shoufei查看表的数据：select * from shoufei;
