Data Definition Language

Using sqldeveloper

To create connection

• Create new connection (any name)• Username: sys• Password: oracle11• Tick on Save password• Connection type: Basic; Role: SysDBA • Hostname: localhost • Port:1521 • SID: xe • Click on Test button • When status is successful; click on connect button

Create user

1. Look for Other user in your connection2. Right click on other user3. Click create user

1. User name: yourname (do not put any space)2. Password: (anything)3. New password:

4. Click on Roles tab – grant all, admin all, default all5. Click on system privileges – grant all, admin all6. Click on Apply button7. Click on Close button

Create table

create table yourname.dept(ID number(7),Dname varchar2(25));

** check table yourname.dept created ****

To confirm the table exists

DESCRIBE yourname.dept

Populate the table

• insert into yourname.deptvalues (101, 'Info Sys');

• insert into yourname.deptvalues (102, 'Marketing');

• insert into yourname.deptvalues (103, ‘Finance');

Create another table

create table yourname.department(deptID number(7),Deptname varchar2(25));

** check table yourname.department created *

Insert the following record in Department table

deptID Deptname

100 Human Resource

120 Network

130 Retail

Copy data from Department into Dept

insert into yourname.deptselect deptID, deptname from yourname.department;

Create new table (copydept) and populate using data from dept table

create table yourname.copydeptas select id, dname from yourname.dept;

Do exercise 1 from metalab