phoenix常用命令

1、登录命令

　　./sqlline.py localhost:2181:/hbase-unsecure

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  phoenix-sqlline 10.1.3.51:2181:/hbase-unsecure

2、退出

!quit

!exit

3、帮助

4、列出metadata信息

5、创建表

create table if not exists ljc.student(id integer primary key,name varchar(20));

6、查看当前库中存在的表

!tables

phoenix中的表信息都存在SYSTEM.CATALOG表中，也可以通过下面的sql语句查看系统的表信息

select * from SYSTEM.CATALOG;

注意：

1、如果不加双引号，会自动将小写转为大写

2、phoenix表名区分大小写

7、删除表

drop table ljc.student;

8、查看表结构

!describe "METRIC_AGGREGATE"

注意：

phoenix/hbase对表名、字段名都是大小写敏感，如果直接写小写字母，不加双引号，则默认会被转换成大写字母

9、插入、更新

Phoenix中不存在update的语法关键字，而是upsert ，功能上替代了Insert+update

  upsert into ljc.student(id,name) values(1,'zhangsan');

    upsert into ljc.student(id,name) values(2,'lisi');

    upsert into ljc.student(id,name) values(3,'wangwu');

    upsert into ljc.student(id,name) values(4,'liuping');

    upsert into ljc.student(id,name) values(5,'zhouhong');

10、示例SQL

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 create table if not exists ljc.student(id integer primary key,name varchar(20));

  upsert into ljc.student(id,name) values(1,'zhangsan');

  upsert into ljc.student(id,name) values(2,'lisi');

  upsert into ljc.student(id,name) values(3,'wangwu');

  upsert into ljc.student(id,name) values(4,'liuping');

  upsert into ljc.student(id,name) values(5,'zhouhong');

 

  create table if not exists ljc.score(id integer primary key,score integer);

  upsert into ljc.score(id,score) values(1,98);

  upsert into ljc.score(id,score) values(2,87);

  upsert into ljc.score(id,score) values(3,90);

  upsert into ljc.score(id,score) values(4,80);

  upsert into ljc.score(id,score) values(5,94);

 

  create table if not exists ljc.course(id integer primary key,course varchar(20));

  upsert into ljc.course(id,course) values(1,'yuwen');

  upsert into ljc.course(id,course) values(2,'shuxue');

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