SQL: Using NOT, OR & AND operators

SQL Boolean Operator Statement: Exercise-9 with Solution.

From the following table, write a SQL query to find all orders that meet the following conditions. Exclude combinations of order date equal to '2012-08-17' or customer ID greater than 3005 and purchase amount less than 1000.

Sample table : orders

Sample Solution :

SELECT * 
FROM  orders 
WHERE NOT((ord_date ='2012-08-17' 
OR customer_id>3005) 
AND purch_amt<1000);

Output of the Query:

ord_no	purch_amt	ord_date	customer_id	salesman_id
70009	270.65		2012-09-10	3001		5005
70002	65.26		2012-10-05	3002		5001
70005	2400.60		2012-07-27	3007		5001
70008	5760.00		2012-09-10	3002		5001
70010	1983.43		2012-10-10	3004		5006
70003	2480.40		2012-10-10	3009		5003
70013	3045.60		2012-04-25	3002		5001
70001	150.50		2012-10-05	3005		5002
70007	948.50		2012-09-10	3005		5002

Relational Algebra Expression:

Relational Algebra Tree:

Explanation :

Pictorial presentation :

Practice Online

Query Visualization:

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Previous: From the following table, write a SQL query to find details of all order where purchase amount less than 200 or excluding combination of order date greater than or equal to '2012-02-10' and customer ID less than 3009. Return ord_no, purch_amt, ord_date, customer_id and salesman_id.
Next: Write a SQL query to display order number, purchase amount, achived, the unachieved percentage for those order which exceeds the 50% of the target value of 6000.