How to Create Table in SQL
Create
a table employee put the attributes are employee_id, employee_name, department,
designation, salary where employee_id is primary key. Then insert these values.
Create table employe(emp_id int primary key, emp_name char(20), dept char(15), designation varchar(25), salary int)
How to Insert Values in Table
Insert into employe values(11, 'Ravi', 'Marketing', 'lecturer', 25000)
Insert into employe values(12, 'Raj', 'Finance', 'Teacher', 30000)
EMP_ID | EMP_NAME | DEPT | DESIGNATION | SALARY |
---|---|---|---|---|
11 | Ravi | Marketing | lecturer | 25000 |
12 | Raj | Finance | Teacher | 30000 |
How to View the Table
Select * from employe
1. Show the name of all employee where salary is more than 26000.
select emp_name
from employe
where salary>26000
EMP_NAME |
---|
Raj |
2. Show the employee_id of all employee who are working in
finance department.
select emp_id
from employe
where dept='Marketing'
EMP_ID |
---|
11 |
3. Change the department of employee_id 12 to marketing.
Update employe
Set dept='marketing'
Where emp_id=12
EMP_ID | EMP_NAME | DEPT | DESIGNATION | SALARY |
---|---|---|---|---|
11 | Ravi | Marketing | lecturer | 25000 |
12 | Raj | marketing | Teacher | 30000 |
Create table order112(order_id int primary key, customer_id char(15), bill_date date, bill_amount int)
Select * from order112
Insert into order112 values(13, 'B', '24-jan-14', 90000)
Insert into order112 values(14, 'A', '23-jan-14', 50000)
Insert into order112 values(15, 'C', '26-jan-14', 100000)
1.
Show order_id of all the order where bill amount is more than Rs.20000.
Select order_id
From order112
Where bill_amount>20000
2.
Display all order detail table after arranging them date wise.
Select * from order112
Order by bill_date
3.
Change the order_id of customer with customer_id 234.
Update order112
Set COLUMN NAME = VALUES
Where CONDITION
4. At
add new attribute customer _name in order detail table.
Alter table TABLE
NAME
Modify COLUMN NAME
DATA TYPE(SIZE)
OR,
Alter table TABLE
NAME
Add COLUMN NAME
DATA TYPE(SIZE)
Alter table order112
add customer_name char(25)
5. Display
customer_id of those customers who spent Rs.10000 to Rs.20000.
Select customer_id
From order112
Where bill_amount between 10000 and
20000
6. Delete
all the record of order_id is 13.
Delete from order112
Where order_id=13
7. Delete the table order detail.
Delete order112
Create table product12(product_id int primary key, product_name char(20), supplier_id int, unit int, price int)
select * from product12
insert into product12 values(1, 'Apple', 21, 10, 20000)
insert into product12 values(2, 'Orange', 22, 11, 600000)
1.
Show the largest value of price column from product table.
Select max(price)
From product12
2.
Find the average value of the price from product table.
Select avg(price)
From product12
3.
Display the product_name and price record that have an above average price.
Select product_name, price
From product12
Where price>(select avg(price) from product12)
4.
Find the total number of record in product table.
Select count(*)
From product12
5.
Display the number of distinct values of product_id.
Select count(distinct product_id)
From product12
6.
Find the sum of all price field price columns for the price product table.
Select sum(price)
From product12
7.
Display the smallest values of the unit column.
Select min(unit)
From product12
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