Like other conventional RDBMS, you need to create a table first and enter the data using INSERT INTO statement. Machbase provides 'machsql' as an interactive tool.
Create table
Syntax:
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
column3 datatype,
....
);
Example:
CREATE TABLE sensor_data ( id VARCHAR(32), val DOUBLE );
Insert data
Syntax:
INSERT INTO table_name VALUES (value1, value2, value3, ...);
Example:
INSERT INTO sensor_data VALUES('sensor1', 10.1);
INSERT INTO sensor_data VALUES('sensor2', 20.2);
INSERT INTO sensor_data VALUES('sensor3', 30.3);
Check inserted data
Syntax:
SELECT column1, column2, ... FROM table_name;
Example:
SELECT * FROM sensor_data;
'machsql' is run as follows.
[mach@localhost ~]$ machsql
=================================================================
Machbase Client Query Utility
Release Version 3.5.0.826b8f2.official
Copyright 2014, Machbase Inc. or its subsidiaries.
All Rights Reserved.
=================================================================
Machbase server address (Default:127.0.0.1) :
Machbase user ID (Default:SYS)
Machbase User Password :
MACH_CONNECT_MODE=INET, PORT=5656
mach> CREATE TABLE sensor_data
(
id VARCHAR(32),
val DOUBLE
);
Created successfully.
Elapsed time: 0.162
mach> INSERT INTO sensor_data VALUES('sensor1', 10.1);
1 row(s) inserted.
Elapsed time: 0.000
mach> INSERT INTO sensor_data VALUES('sensor2', 20.2);
1 row(s) inserted.
Elapsed time: 0.000
mach> INSERT INTO sensor_data VALUES('sensor3', 30.3);
1 row(s) inserted.
Elapsed time: 0.000
mach> SELECT * FROM sensor_data;
ID VAL
-----------------------------------------------------------------
sensor3 30.3
sensor2 20.2
sensor1 10.1
[3] row(s) selected.
Elapsed time: 0.000