1. Association of Computing Activities Computer Science and Engineering Indian Institute of Technology Kanpur

2. Outline of Lecture Introduction Creating Connecting Insertion Updating Deletion Querying

3. Introduction Database is a organized collection of data(in tables) RDBMS – relationship among the data in table MY structured query language RDBMS providing multi user access to db’s Popular because of scalability, flexibility, high availability, robust transactional support, protection, app development, low cost Facebook, Google, adobe and a lot more

4. Creation using xampp Go to databases Collation as UTF-8 Click on the database and create tables with columns required Enter the name, type, length Collation, attributes, null Index, auto increment Storage engine, collation

5. Creating using sql Create database name; Create table name_of_table{ column1 data_type1; }

6. Connecting to db Written in php script(server should be running) mysql_connect(server,username,password) (=$con) mysql_select_db(name,connection)

7. syntax for sql $query = “my query goes here”; $result = mysql_query($query,$con);

8. Insertion INSERT into name_of_table VALUES (value_for_column1,value_for_column2,……..) INSERT into name_of_table (column1,column4,column7) VALUES (value_for_column1,value_for_column4,value_for_col umn7)

9. Updation Update, set, where UPDATE name_of_table set column1=“some” where coulmnk = “this” UPDATE name_of_table set column1=“some”,column2=“some1” where coulmnk = “this” AND columnp=“here”;

10. Deletion Delete,from,WHERE DELETE FROM name_of_table where name_of_column=“value”; Delete a particular row To delete all rows use(make table empty) DELETE from table_name or DELETE * from table_name

11. Querying SELECT, FROM, WHERE SELECT name_of_column from name_of_table WHERE name_of_other_column operator value * instead of name_of_column SELECT colum1,column2,…………. From table_name WHERE name op v1 AND/OR name2 op2 v2

12. Built In functions SELECT function FROM table_name; AVG() MAX() MIN() SUM() COUNT() DISTINct