AdventureWorks Database: Repeat the 0 character four times before productnumber
184. From the following table write a query in SQL to repeat the 0 character four times before productnumber. Return name, productnumber and newly created productnumber.
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 columns 'Name' and 'productnumber' from the Product table
SELECT Name,
productnumber ,
-- Concatenating a string of four '0's with the productnumber and aliasing it as fullProductNumber
concat(REPEAT('0', 4) , productnumber) AS fullProductNumber
-- Ordering the results by the 'Name' column
FROM Production.Product
ORDER BY Name;
Explanation:
- This SQL query operates on the Production.Product table.
- Comments are added to explain each part of the query for better understanding and maintenance.
- Here's a breakdown of what the query does:
- It selects the 'Name' and 'productnumber' columns from the Product table.
- It uses the CONCAT function to concatenate a string of four '0's with the productnumber.
- The REPEAT function repeats the character '0' four times.
- The CONCAT function then combines the repeated '0's with the productnumber.
- The result is aliased as fullProductNumber.
- The results are ordered by the 'Name' column.
Sample Output:
name |productnumber|fullproductnumber| --------------------------------+-------------+-----------------+ Adjustable Race |AR-5381 |0000AR-5381 | All-Purpose Bike Stand |ST-1401 |0000ST-1401 | AWC Logo Cap |CA-1098 |0000CA-1098 | BB Ball Bearing |BE-2349 |0000BE-2349 | Bearing Ball |BA-8327 |0000BA-8327 | Bike Wash - Dissolver |CL-9009 |0000CL-9009 | Blade |BL-2036 |0000BL-2036 | Cable Lock |LO-C100 |0000LO-C100 | Chain |CH-0234 |0000CH-0234 | Chain Stays |CS-2812 |0000CS-2812 | Chainring |CR-7833 |0000CR-7833 | ...
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