 create table student_f6(Enrollment no int not null, name varchar(255) not null, gender char(2) not null, Topics varchar(255));
 insert into student_f6
 VALUES('Enrollment no','name','gender','topics');
insert into student_f6 VALUES('6315604918','Toyashi Kumari','f','solar cooker');
insert into student_f6 VALUES('6415604918','U Rajeev Menon','m',null);
insert into student_f6 VALUES('6515604918','Ujjwal Saraswat','m',null);
insert into  student_f6 VALUES('6615604918','Umar Faruque','m',null);
insert into student_f6 VALUES('6715604918','Utsav Kumar Jha','m','renewable energy');
insert into student_f6 VALUES('6815604918','Vaishali','f','Nuclear energy');
insert into student_f6 VALUES('6915604918','Yukta','f','Supercapacitor');
insert into student_f6 VALUES('20115604918','Avnaish kumar singh','m','Unmaned aie vehicle');
insert into student_f6 VALUES('20215604918','Ritik Kumar SINGH','m','Gesture control Vehicle');
insert into student_f6 VALUES('35115604918','Aakash Dagar','m',null);
insert into student_f6 VALUES('35215604918','Amritta kandar','f',null);
 insert into student_f6 VALUES('35315604918','Anirudh Tiwari','m',null);
insert into student_f6 VALUES('35415604918','Anmol Rohilla','m',null);
insert into student_f6 VALUES('35515604918','Chaitnaya Mamgain','m',null);
insert into student_f6 VALUES('35615604918','Mohit Aggarwal','m',null);
insert into student_f6 VALUES('35715604918','Nadeem Akhtar','m',null);
insert into student_f6 VALUES('35815604918','Namyta Bisht','f','Battery energy Storage system');
insert into student_f6 VALUES('35915604918','Sarthak Batra','m',null);
insert into student_f6 VALUES('36015604918','Shivang singh','m','Human Interface Devices');
 insert into student_f6 VALUES('36115604918','Shweta singh','f','Smart fabrics');
insert into student_f6 VALUES('36215604918','Sidhhant Ahuja','m','Solar Refrigerator');
insert into student_f6 VALUES('40115604918','Akash Panwar','m',null);
insert into student_f6 VALUES('40215604918','Sahil Ahmed Khan','m',null);
insert into student_f6 VALUES('40415604918','Vishal','m',null);
insert into student_f6 VALUES('40615604918','Nakshatra Popli','m',null);
insert into student_f6 VALUES('40715604918','Chirag Maheshwari','m',null);
insert into student_f6 VALUES('40915604918','Parnika jain','f',null);
insert into student_f6 VALUES('41015604918','Akash Rana','m',null);
insert into student_f6 VALUES('41115604918','Ritesh Kumar singh','m',null);
insert into student_f6 VALUES('41215604918','Juhi Tyagi','f',null);
insert into student_f6 VALUES('41315604918','Yash Sundryal','m',null);
insert into student_f6 VALUES('41415604918','Navya jain','f',null);
insert into student_f6 VALUES('41515604918','Uttkarsh Gupta','m',null);
insert into student_f6 VALUES('41615604918','Tanya Chauhan','f',null);
insert into student_f6 VALUES('41715604918','Lait vats','m',null);
insert into student_f6 VALUES('41815604918','Rishabh Chaudhary','m',null);
insert into student_f6 VALUES('42015604918','Kailash Masiwal','m',null);
insert into student_f6 VALUES('42115604918','Manindar Kumar jha','m','Home automation in India');
insert into student_f6 VALUES('42215604918',' Rohan dalal ','m',null);
insert into student_f6 VALUES('42315604918','Vishal Gupta','m',null);
insert into student_f6 VALUES('42515604918','Shubhi sharma','f','Superconductors');
insert into student_f6 VALUES('42615604918','Nikhil chandel','m',null);
insert into student_f6 VALUES('42715604918','Aditya Maheshwari','m','A ray of hope:Solar energy');
insert into student_f6 VALUES('42815604918','Akash Kumar','m',null);
insert into student_f6 VALUES('42915604918','Vivek kumar das','m',null);
insert into student_f6 VALUES('43015604918','Aryan Bakshi','m',null);
insert into student_f6 VALUES('43215604918','Jyoti','f','Smart Grid');
insert into student_f6 VALUES('43315604918',' Roushan','m',null);
insert into student_f6 VALUES('43415604918','Anmol Madan','m',null);
insert into student_f6 VALUES('43515604918','Shivendu Tyagi','m',null);
insert into student_f6 VALUES('43615604918','Nitik Goyal','m',null);
insert into student_f6 VALUES('43715604918','Shivam Kishore','m',null);
insert into student_f6 VALUES('43815604918','Kundan','m',null);
insert into student_f6 VALUES('44015604918','Ksihtij Sourav','m','Augmented Reality');
insert into student_f6  VALUES('50115604918','Chirag Chaudhary','m',null);



select * 
from student_f6 where gender = 'm';

created 3 years ago

MySQL online editor

Write, Run & Share MySQL queries online using OneCompiler's MySQL online editor and compiler for free. It's one of the robust, feature-rich online editor and compiler for MySQL. Getting started with the OneCompiler's MySQL editor is really simple and pretty fast. The editor shows sample boilerplate code when you choose language as 'MySQL' and start writing queries to learn and test online without worrying about tedious process of installation.

About MySQL

MySQL is a open-source, free and very popular relational database management system which is developed, distributed and supported by Oracle corporation.

Key Features:

Open-source relational database management systems.
Reliable, very fast and easy to use database server.
Works on client-server model.
Highly Secure and Scalable
High Performance
High productivity as it uses stored procedures, triggers, views to write a highly productive code.
Supports large databases efficiently.
Supports many operating systems like Linux*,CentOS*, Solaris*,Ubuntu*,Windows*, MacOS*,FreeBSD* and others.

Syntax help

Commands

1. CREATE

CREATE TABLE table_name (
                column1 datatype,
                column2 datatype,
                ....);

Example

CREATE TABLE EMPLOYEE (
  empId INTEGER PRIMARY KEY,
  name TEXT NOT NULL,
  dept TEXT NOT NULL
);

2. ALTER

ALTER TABLE Table_name ADD column_name datatype;

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Dave', 'Sales');

3. TRUNCATE

TRUNCATE table table_name;

4. DROP

DROP TABLE table_name;

5. RENAME

RENAME TABLE table_name1 to new_table_name1;

6. COMMENT

Single-Line Comments:

 --Line1;

Multi-Line comments:

   /* Line1,
   Line2 */

DML Commands

1. INSERT

INSERT INTO table_name (column1, column2, column3, ...) VALUES (value1, value2, value3, ...);

Note: Column names are optional.

Example

INSERT INTO EMPLOYEE VALUES (0001, 'Ava', 'Sales');

2. SELECT

SELECT column1, column2, ...
FROM table_name
[where condition];

Example

SELECT * FROM EMPLOYEE where dept ='sales';

3. UPDATE

UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;

Example

UPDATE EMPLOYEE SET dept = 'Sales' WHERE empId='0001';

4. DELETE

DELETE FROM table_name where condition;

Example

DELETE from EMPLOYEE where empId='0001';

Indexes

1. CREATE INDEX

  CREATE INDEX index_name on table_name(column_name);

To Create Unique index:

  CREATE UNIQUE INDEX index_name on table_name(column_name);

2. DROP INDEX

DROP INDEX index_name ON table_name;

Views

1. Create a View

Creating a View:
CREATE VIEW View_name AS 
Query;

2. How to call view

SELECT * FROM View_name;

3. Altering a View

ALTER View View_name AS 
Query;

4. Deleting a View

DROP VIEW View_name;

Triggers

1. Create a Trigger

CREATE TRIGGER trigger_name trigger_time trigger_event
    ON tbl_name FOR EACH ROW [trigger_order] trigger_body
/* where
trigger_time: { BEFORE | AFTER }
trigger_event: { INSERT | UPDATE | DELETE }
trigger_order: { FOLLOWS | PRECEDES } */

2. Drop a Trigger

DROP TRIGGER [IF EXISTS] trigger_name;

Stored Procedures

1. Create a Stored Procedure

CREATE PROCEDURE sp_name(p1 datatype)
BEGIN
/*Stored procedure code*/
END;

2. How to call Stored procedure

CALL sp_name;

3. How to delete stored procedure

DROP PROCEDURE sp_name;

Joins

1. INNER JOIN

SELECT * FROM TABLE1 INNER JOIN TABLE2 where condition;

2. LEFT JOIN

SELECT * FROM TABLE1 LEFT JOIN TABLE2 ON condition;

3. RIGHT JOIN

SELECT * FROM TABLE1 RIGHT JOIN TABLE2 ON condition;

4. CROSS JOIN

SELECT select_list from TABLE1 CROSS JOIN TABLE2;