SQL Exercise: Information using AND operator with given conditions
SQL Boolean Operator Statement: Exercise-2 with Solution.
From the following table, write a SQL query to find all the customers in ‘New York’ city who have a grade value above 100. Return customer_id, cust_name, city, grade, and salesman_id.
Sample table: customer
customer_id | cust_name | city | grade | salesman_id -------------+----------------+------------+-------+------------- 3002 | Nick Rimando | New York | 100 | 5001 3007 | Brad Davis | New York | 200 | 5001 3005 | Graham Zusi | California | 200 | 5002 3008 | Julian Green | London | 300 | 5002 3004 | Fabian Johnson | Paris | 300 | 5006 3009 | Geoff Cameron | Berlin | 100 | 5003 3003 | Jozy Altidor | Moscow | 200 | 5007 3001 | Brad Guzan | London | | 5005
Sample Solution:
-- This query selects all columns from the 'customer' table.
SELECT *
-- Specifies the table from which to retrieve the data (in this case, 'customer').
FROM customer
-- Filters the rows to only include those where the 'city' column has the value 'New York'
-- and the 'grade' column has a value greater than 100.
WHERE city = 'New York' AND grade > 100;
Output of the Query:
customer_id cust_name city grade salesman_id 3007 Brad Davis New York 200 5001
Code Explanation:
The said SQL query that is selecting all columns (*) from the 'customer' table where the value of the "city" column is 'New York' and the value of the "grade" column is greater than 100. The query will return all rows from the "customer" table where the value in the "city" column is 'New York' and the value in the "grade" column is greater than 100.
Relational Algebra Expression:
Relational Algebra Tree:
Explanation:
Visual presentation :
Practice Online
Query Visualization:
Duration:
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Cost:
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Previous SQL Exercise: Display all information with specified conditions.
Next SQL Exercise: Information using OR operator with given conditions.
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