AdventureWorks Database: Retrieve products that first two digits of listprice 33

SQL Query - AdventureWorks: Exercise-80 with Solution

80. From the following table write a query in SQL to retrieve the name of the products. Product, that have 33 as the first two digits of listprice.

productid|name                            |productnumber|makeflag|finishedgoodsflag|color       |safetystocklevel|reorderpoint|standardcost|listprice|size|sizeunitmeasurecode|weightunitmeasurecode|weight |daystomanufacture|productline|class|style|productsubcategoryid|productmodelid|sellstartdate          |sellenddate            |discontinueddate|rowguid                             |modifieddate           |
---------+--------------------------------+-------------+--------+-----------------+------------+----------------+------------+------------+---------+----+-------------------+---------------------+-------+-----------------+-----------+-----+-----+--------------------+--------------+-----------------------+-----------------------+----------------+------------------------------------+-----------------------+
        1|Adjustable Race                 |AR-5381      |false   |false            |            |            1000|         750|           0|        0|    |                   |                     |       |                0|           |     |     |                    |              |2008-04-30 00:00:00.000|                       |                |694215b7-08f7-4c0d-acb1-d734ba44c0c8|2014-02-08 10:01:36.827|
        2|Bearing Ball                    |BA-8327      |false   |false            |            |            1000|         750|           0|        0|    |                   |                     |       |                0|           |     |     |                    |              |2008-04-30 00:00:00.000|                       |                |58ae3c20-4f3a-4749-a7d4-d568806cc537|2014-02-08 10:01:36.827|
        3|BB Ball Bearing                 |BE-2349      |true    |false            |            |             800|         600|           0|        0|    |                   |                     |       |                1|           |     |     |                    |              |2008-04-30 00:00:00.000|                       |                |9c21aed2-5bfa-4f18-bcb8-f11638dc2e4e|2014-02-08 10:01:36.827|
        4|Headset Ball Bearings           |BE-2908      |false   |false            |            |             800|         600|           0|        0|    |                   |                     |       |                0|           |     |     |                    |              |2008-04-30 00:00:00.000|                       |                |ecfed6cb-51ff-49b5-b06c-7d8ac834db8b|2014-02-08 10:01:36.827|
      316|Blade                           |BL-2036      |true    |false            |            |             800|         600|           0|        0|    |                   |                     |       |                1|           |     |     |                    |              |2008-04-30 00:00:00.000|                       |                |e73e9750-603b-4131-89f5-3dd15ed5ff80|2014-02-08 10:01:36.827|
      317|LL Crankarm                     |CA-5965      |false   |false            |Black       |             500|         375|           0|        0|    |                   |                     |       |                0|           |L    |     |                    |              |2008-04-30 00:00:00.000|                       |                |3c9d10b7-a6b2-4774-9963-c19dcee72fea|2014-02-08 10:01:36.827|
      318|ML Crankarm                     |CA-6738      |false   |false            |Black       |             500|         375|           0|        0|    |                   |                     |       |                0|           |M    |     |                    |              |2008-04-30 00:00:00.000|                       |                |eabb9a92-fa07-4eab-8955-f0517b4a4ca7|2014-02-08 10:01:36.827|
	  -- more --

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Sample Solution:

-- Selecting the substring of product names up to 30 characters and the list price
SELECT SUBSTRING(Name, 1, 30) AS ProductName, ListPrice  

-- From the Production schema's Product table
FROM Production.Product  

-- Filtering the results to include only rows where the list price starts with '33'
WHERE CAST(ListPrice AS char(2)) LIKE '33%';

Explanation:

• The SQL query retrieves data from the Product table within the Production schema.
• It selects the substring of product names up to the first 30 characters and the list price.
• The SUBSTRING() function is used to extract the first 30 characters of the product name to ensure it doesn't exceed the specified length.
• The LIKE operator is used in combination with the CAST() function to filter the results based on the list price.
• The CAST() function converts the 'ListPrice' column to a character data type (specifically, to the first 2 characters) for pattern matching.
• The WHERE clause filters the rows to include only those where the list price starts with '33'.

Sample Output:

productname                  |listprice|
-----------------------------+---------+
LL Road Frame - Black, 58    |   337.22|
LL Road Frame - Black, 60    |   337.22|
LL Road Frame - Black, 62    |   337.22|
LL Road Frame - Red, 44      |   337.22|
LL Road Frame - Red, 48      |   337.22|
LL Road Frame - Red, 52      |   337.22|
LL Road Frame - Red, 58      |   337.22|
LL Road Frame - Red, 60      |   337.22|
LL Road Frame - Red, 62      |   337.22|
LL Road Frame - Black, 44    |   337.22|
LL Road Frame - Black, 48    |   337.22|
LL Road Frame - Black, 52    |   337.22|
Mountain-100 Silver, 38      |  3399.99|
Mountain-100 Silver, 42      |  3399.99|
...

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