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SQL Puzzle | 2 Digit Puzzle
Here you need to write a query to get distinct digits from the table. Now here half data has been reversely inserted. e.g. For 21 we have inserted 12. So out of 12 and 21 we need 21 as a single row.
For details please check out the sample input and the expected output below.
- The challenge is to do it with T-SQL statements only.
- Reverse function is not allowed.
- Add your solution(s) in the comments section or send you solution(s) to email@example.com
Script | use below script to create table and insert some sample data
-- CREATE TABLE [2Digits] ( Id INT ) GO INSERT INTO [2Digits] VALUES (21), (12), (34), (43), (29), (92) --
SOLUTION – 1
-- SELECT DISTINCT CASE WHEN Id % 10 < (id / 10) THEN (id / 10)*10 + (Id % 10) ELSE (Id % 10 )*10+(id / 10) END Id FROM [2Digits] --
Add a comment if you have a solution in mind. I would love to learn it. We all need to learn.
Enjoy !!! Keep Learning