SQL: Select all columns that satisfy a specific condition
SQL Basic Select Statement: Exercise-10 with Solution.
From the following table, write a SQL query to find customers whose grade is 200. Return customer_id, cust_name, city, grade, salesman_id.
Sample table: customer
Sample Solution:
SELECT *FROM customer
WHERE grade=200;
Output of the Query:
customer_id cust_name city grade salesman_id 3007 Brad Davis New York 200 5001 3005 Graham Zusi California 200 5002 3003 Jozy Altidor Moscow 200 5007
Relational Algebra Expression:
Relational Algebra Tree:
Explanation :

Pictorial presentation :

Practice Online
Query Visualization:
Duration:

Rows:

Cost:

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Previous: From the following table, write a SQL query to find the salespeople who lives in the City of 'Paris'. Return salesperson's name, city..
Next: From the following table, write a SQL query to find the orders, which are delivered by a salesperson of ID. 5001. Return ord_no, ord_date, purch_amt.
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SQL: Tips of the Day
Nested select statement in SQL Server.
You need to alias the subquery.
SELECT name FROM (SELECT name FROM agentinformation) a
or to be more explicit
SELECT a.name FROM (SELECT name FROM agentinformation) a
Database: SQL Server
Ref: https://bit.ly/3Qruiu5
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