Answers for "yyy"

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yyy

create database <data base name of your choice>

create user "<username>" with password '<password>'

To see the all databases:  SHOW DATABASES

Enter the Database: use <database name>

To see all tables inside the database: SHOW MEASUREMENTS

grant all on <data base name> to <username>

insert data (Here Motionsense is a Measurement which is similar to the table 
name of SQL): INSERT MotionSense,SensorType=Gyro roll=1.2,yaw=5,pitch=3

See the data of the Measurements: SELECT * FROM "MotionSense"