AdventureWorks Database: Concatenate the columns separated by a unique character
61. Write a SQL query that concatenate the columns name, productnumber, colour, and a new line character from the following table, each separated by a specified character.
Sample table: production.product
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 --
Sample Solution:
-- Selecting a concatenated string containing product details separated by commas, with a line break character at the end
SELECT CONCAT_WS( ',', name, productnumber, color,chr(10)) AS DatabaseInfo
-- From the Production schema's Product table
FROM production.product;
Explanation:
- The SQL query retrieves data from the Product table within the Production schema.
- It constructs a concatenated string using the CONCAT_WS() function to combine various elements such as name, product number, and color, separated by commas.
- The CONCAT_WS() function concatenates multiple strings together with a specified separator.
- In the concatenated string:
- name represents the product name.
- productnumber represents the product number.
- color represents the color of the product.
- chr(10) represents a line break character, ensuring that each concatenated string ends with a line break.
- The concatenated string is aliased as 'DatabaseInfo'.
Sample Output:
databaseinfo | -----------------------------------------+ Adjustable Race,AR-5381,¶ | Bearing Ball,BA-8327,¶ | BB Ball Bearing,BE-2349,¶ | Headset Ball Bearings,BE-2908,¶ | Blade,BL-2036,¶ | LL Crankarm,CA-5965,Black,¶ | ML Crankarm,CA-6738,Black,¶ | HL Crankarm,CA-7457,Black,¶ | Chainring Bolts,CB-2903,Silver,¶ | Chainring Nut,CN-6137,Silver,¶ | Chainring,CR-7833,Black,¶ | ...
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