(1)登錄:
mysql -h 主機名 -u 用戶名 -p 密碼
(2)顯示所有資料庫:
show databases;
(3)進入指定資料庫:
use 庫名; 例如:use mysql;
(4)查看庫中所有表:
show tables from 庫名; 例如:show tables; show tables from mysql;
(5)查看當前庫:
select database();
(6)查看版本:
進入mysql客戶端之前:mysql -version 或 mysql -V
進入mysql客戶端之后:select version();
(7)新建一個資料庫:
create database spark(庫名);
(8)建表:
create table customer(id varchar(30),age int,name varchar(30),birthday date);
(9)查看表結構:
desc customer;
(10)查看表:
select * from customer;
(11)查詢特定列:
select id ,name,sex from student;
(12)查詢資料并進行過濾:
select id ,name,sex from student where id =>1003;
(13)運算子查詢:
select id,name,sex from student where age >=18 and age <=35;
select id,name,sex from student where age between 18 and 35;
(14)查詢變種:
mysql > select * from student where age =18 or age =35 or age =23
mysql > select * from student where age in (18,23,35);
mysql > select * from student where name like '%小%';
mysql > select * from student where name like '_明%';
mysql > select * from student where email is null;
mysql > select * from student where email is not null;
mysql > select * from student order by age ; //升序
mysql > select * from student order by age desc ; //降序
提示:%匹配任意多個字符,_只匹配一個字符
(15)插入資料:
insert into student(id,name)values(1001,'小明');
(16)修改表:
update student set name='小紅' where id = 1001;
(17)洗掉表記錄:
delete from student where id = 1001;
(18)洗掉表:
drop table customer;
(19)退出:
一共三種方式:
mysql > exit;
mysql > quit;
ctrl+C
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