Phoenix command line connection, common basic operations of adding, deleting, modifying and checking

command line connection

./sqlline.py localhost:2181

 

create schema

create schema IF NOT EXISTS "test";

The following error may be reported for the first creation, and the configuration file needs to be modified

Error: ERROR 725 (43M08): Cannot create schema because config phoenix.schema.isNamespaceMappingEnabled for enabling name space mapping isn't enabled. schemaName="test" (state=43M08,code=725)

java.sql.SQLException: ERROR 725 (43M08): Cannot create schema because config phoenix.schema.isNamespaceMappingEnabled for enabling name space mapping isn't enabled. schemaName="test"

Modify the $HASE_HOME/conf/hbase-site.xml file and the $PHOENIX_HOME/bin/hbase-site.xml file, and restart the Hbase service after the modification

<property>

  <name>phoenix.schema.isNamespaceMappingEnabled</name>

  <value>true</value>

</property>

<property>

  <name>phoenix.schema.mapSystemTablesToNamespace</name>

  <value>true</value>

</property>

switch schema

use "test";

create table

CREATE TABLE IF NOT EXISTS user(id VARCHAR NOT NULL primary key, name VARCHAR,age VARCHAR,date Date);

View table structure

!tables

!desc user;

Add and modify

upsert into USER (id,name,age,date) values('1','zhangsan','18','2023-7-18');

view data

delete data

delete from USER where id = '1';

delete all

delete from USER;

upsert into USER (id,name,age,date) values('1','zhangsan','18','2023-7-18');

upsert into USER (id,name,age,date) values('2','lisi','20','2023-7-18');

select * from USER;

upsert into USER (id,name,age,date) values('2','lisi2','20','2023-7-18');

select * from USER;

Commonly used field types for table creation

create table test01 (
col1 integer not null primary key,
col2 varchar(2),
col3 varchar(5),
col4 decimal(4,2),
col5 decimal(6,3)
);