sqlite_commands

creating a table
CREATE TABLE database_name.table_name(
   column1 datatype PRIMARY KEY(one or more columns),
   column2 datatype,
   column3 datatype,
   .....
   columnN datatype
);

example :  CREATE TABLE COMPANY(
   ID INT PRIMARY KEY     NOT NULL,
   NAME           TEXT    NOT NULL,
   AGE            INT     NOT NULL,
   ADDRESS        CHAR(50),
   SALARY         REAL
);
---------------------------------------------------------------
DROP TABLE database_name.table_name;

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alter table ->supports renaming table name and adding extra column

ALTER TABLE database_name.table_name RENAME TO new_table_name;
ALTER TABLE database_name.table_name ADD COLUMN column_def...;
----------------------------------------------------------------
update table

UPDATE Customers
SET ContactName = 'Alfred Schmidt', City= 'Frankfurt'
WHERE CustomerID = 1;

-----------------------------------------------------------
delete command

DELETE FROM Students WHERE StudentId = 11 OR StudentId = 12;


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foreign key
CREATE TABLE Orders (
    OrderID int NOT NULL,
    OrderNumber int NOT NULL,
    PersonID int,
    PRIMARY KEY (OrderID),
    FOREIGN KEY (PersonID) REFERENCES Persons(PersonID) / FOREIGN KEY (PersonID) REFERENCES Persons (PersonID) ON DELETE CASCADE

); 


create table employee(id int primary key,emp_name text,age int,dep_id int foriegn key references deaprtment(id));

make sure PRAGMA foreign_keys = ON;
---------------------------------------------------------------

INSERT INTO TABLE_NAME VALUES (value1,value2,value3,...valueN);

example : INSERT INTO COMPANY (ID,NAME,AGE,ADDRESS,SALARY)
VALUES (1, 'Paul', 32, 'California', 20000.00 );

INSERT INTO COMPANY VALUES (7, 'James', 24, 'Houston', 10000.00 );

--------------------------------------------------------------


SELECT column1, column2, columnN FROM table_name;
SELECT * FROM table_name;

sqlite>.header on
sqlite>.mode column
sqlite> SELECT * FROM COMPANY;

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importing csv file
sqlite> .mode csv
sqlite> .import /home/divakar/Desktop/city.csv citytable
sqlite> .schema citytable
sqlite> select * FROM citytable;


---------------------------------------------------------------------

update command

UPDATE table_name
SET column_name = 3 
WHERE rowno = 6;


delete command

DELETE FROM table_name WHERE column_name = val1 OR column_name = val2;


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mydb
CREATE TABLE test11 (qno INT PRIMARY KEY NOT NULL UNIQUE,question text,description text,imagepath text,option1 text,option2 text,option3 text,option4 text,option5 text)

Limit and offset command 
SELECT
 trackId,
 name
FROM
 tracks
LIMIT 10 OFFSET 10;