SQL Exercises: Find out customers who made the order
SQL Query on Multiple Tables: Exercise-4 with Solution
From the following tables, write a SQL query to locate the orders made by customers. Return order number, customer name.
Sample table: orders
Sample table: customer
Sample Solution:
SELECT orders.ord_no, customer.cust_name
FROM orders, customer
WHERE orders.customer_id = customer.customer_id;
Output of the query:
ord_no cust_name 70009 Brad Guzan 70002 Nick Rimando 70004 Geoff Cameron 70005 Brad Davis 70008 Nick Rimando 70010 Fabian Johnson 70003 Geoff Cameron 70011 Jozy Altidor 70013 Nick Rimando 70001 Graham Zusi 70007 Graham Zusi 70012 Julian Green
Relational Algebra Expression:
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Explanation:
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Query Visualization:
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Previous: From the following tables, write a SQL query to find those salespeople who generated orders for their customers but not located in the same city. Return ord_no, cust_name, customer_id (orders table), salesman_id (orders table).
Next: From the following tables, write a SQL query to find those customers where each customer has a grade and served by at least a salesperson who belongs to a city. Return cust_name as "Customer", grade as "Grade".
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SQL: Tips of the Day
SQL Server SELECT into existing table.
INSERT INTO dbo.TABLETWO SELECT col1, col2 FROM dbo.TABLEONE WHERE col3 LIKE @search_key
This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:
INSERT INTO dbo.TABLETWO (col1, col2) SELECT col1, col2 FROM dbo.TABLEONE WHERE col3 LIKE @search_key
Database: SQL Server
Ref: https://bit.ly/3y6tpA3
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