This document provides information on database design and SQL commands. It suggests designing a database for a travel agency with two tables - one to store customer details including a primary key customer ID, and another to store booking details with a foreign key linking it to the customer ID. It then demonstrates how to create tables, insert data, use the SELECT command to view data, and declare primary and foreign keys.

2. Disclaimer: This presentation is prepared by trainees of
baabtra as a part of mentoring program. This is not official
document of baabtra –Mentoring Partner
Baabtra-Mentoring Partner is the mentoring division of baabte System Technologies Pvt .
Ltd

3. DATABASE DESIGNING
Reshmi
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4. DATABASE
• A Database is a Structured collection of data.
• It acts as a container for related tables.
For eg. It could hold all your customer and order
information.
• To create database
Eg: Createdb Mydb;

5. PROBLEM STATEMENT
• Design a database for a travelling agency to
track its customers and their booking. It can
have maximum two tables.

6. 1.Tbl_customer
Fields Datatype
Vchr_Customer_name varchar(20)
pk_bint_Client_id Big int
vchr_email_id Varchar(20)
bln_gender Boolean
bint_cust_phone Bigint

7. 2.Tbl_booking
Fields Datatype
pk_ticket_no integer
vchr_Source varchar(20)
vchr_Destination varchar(20)
dat_Date_of_jrny date
dat_Date_of_Bookg date
fk_bint_Client_id bigint

8. CREATE TABLE
• To create a new table:
• CREATE TABLE table_name
(
column_name1 data_type,
column_name2 data_type,
…
);
 Create table tbl_Client_details(pk_bint_Client_id bigint PRIMARY
KEY,vchr_Client_name varchar(50),vchr_email_id
varchar(50),bln_gender boolean,bint_phone_num bigint);

9. INSERTING IN TABLE
• To insert values into a table:
• INSERT INTO table_name
VALUES(value1 , value2 , value3 , …);
 INSERT INTO tbl_Client_details
VALUES(2,'B','b@gmail.com',55,'0',977788822);

10. SELECT COMMAND
• To view contents of a table:
• SELECT * FROM table_name;
 Select * from tbl_Client_details.
Displays all the contents in the table tbl_Client_details.

11. DECLARING PRIMARY & FOREIGN
KEYS
• To declare primary key:
 Create Table table_1
( primary int PRIMARY KEY,
column2 data_type,….
);
• To declare foreign key:
 Create Table table_2
( foreign int REFERENCES table_1(primary)
column2 data_type,….
);

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