Sunday, 30 September 2012

Simple SQL scripts for beginners that allows to manage database easily

SQL i.e. Structured Query language is used to access the database. It is also used to build various websites. There are various commands used in sql are: Create, Insert, Delete, Update, Select, Join, Distinct, etc.  
SQL scripts/codes for:
  1. Creating table in SQL.
  2. Inserting data into table.
  3. Selecting data from table.
  4. Updating data into table.
  5. Deleting table.

1. Code for creating a table in SQL:


/*   Table Name: T_Person   */

CREATE TABLE T_Person
(
P_ID int,
LastName  varchar(50),
FirstName  varchar(50),
Address  varchar(50),
City  varchar(50)
)

P_ID        LastName        FirstName        Address        City         

2. Code for inserting data into table:


/*   Table Name: T_Person   */

INSERT INTO T_Person
VALUES(1, 'utreja', 'jeenu', 'Anand Nagar', 'Rajpura')

P_ID        LastName        FirstName        Address                City
1               utreja                jeenu                 Anand Nagar        Rajpura

3. Code for selecting data from table:


/*   Table Name: T_Person   */

SELECT * FROM T_Person

P_ID        LastName        FirstName        Address                 City
1               utreja                jeenu                 Anand Nagar         Rajpura
2               kapoor             pihu                   Bakken 22             Stavanger
3               sharma            pooja                 Storgt 20                Sandnes

4. Code for updating data into table:


/*   Table Name: T_Person   */

UPDATE T_Person
SET Address='Timoteivn 10', City='Sandnes'
WHERE LastName='gupta' AND FirstName='khushi'


P_ID        LastName        FirstName        Address                 City
1               utreja                jeenu                 Anand Nagar         Rajpura
2               kapoor             pihu                   Bakken 22             Stavanger
3               sharma            pooja                 Storgt 20                Sandnes
4               gupta               khushi                Timoteivn 10          Sandnes

5. Code for deleting data from table:


/*   Table Name: T_Person   */

DELETE * FROM T_Person




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