AdventureWorks Database: Searches for the word red in the name column

Last update on December 20 2024 11:57:46 (UTC/GMT +8 hours)

52. From the following table write a query in SQL that searches for the word 'red' in the name column. Return name, and color columns from the table.

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 --

Click to view Full table

Sample Solution:

-- Selecting specific columns 'Name' and 'Color' from the Product table
SELECT Name, Color   

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

-- Filtering the results to include only rows where the text search vector of the 'Name' column matches the text search query 'red'
-- The to_tsvector() function converts the 'Name' column to a text search vector
-- The @@ operator checks if the text search vector matches the text search query
-- The to_tsquery() function creates a text search query from the string 'red'
-- This query searches for products whose names contain the word 'red'
WHERE to_tsvector(name) @@ to_tsquery('red');

Explanation:

• The SQL query retrieves data from the Product table within the Production schema.
• It selects two columns: Name and Color.
• The WHERE clause filters the results to include only rows where:
• The text search vector of the Name column matches the text search query 'red'.
• The to_tsvector() function converts the Name column to a text search vector, which is a preprocessed representation of the text that is optimized for searching.
• The @@ operator checks if the text search vector matches the text search query.
• The to_tsquery() function creates a text search query from the string 'red'.
• This query searches for products whose names contain the word 'red'.

Sample Output:

name                   |color|
-----------------------+-----+
Paint - Red            |     |
HL Road Frame - Red, 58|Red  |
Sport-100 Helmet, Red  |Red  |
HL Road Frame - Red, 62|Red  |
HL Road Frame - Red, 44|Red  |
HL Road Frame - Red, 48|Red  |
HL Road Frame - Red, 52|Red  |
HL Road Frame - Red, 56|Red  |
LL Road Frame - Red, 44|Red  |
LL Road Frame - Red, 48|Red  |
LL Road Frame - Red, 52|Red  |
LL Road Frame - Red, 58|Red  |
LL Road Frame - Red, 60|Red  |
...

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