Sql - select rows from table where column values matched as column name in another table

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SQL-Server-2016

I want to select rows from table-A where Category-column values matched as any one of the Column name in table-B

Table A	
	
UserName	Category
	
Raja	      ECE
Manoj	      CAT
Siva	      ENG
Kumar	      MAT
Viru	      WEB

Table B				
				
Name	ECE	MAT	ROB	ENG
				
Ching	10	0	7	9
Leeng	21	2	21	2

Need Output like :		
		
	UserName	Category
		
	Raja	       ECE
	Siva	       ENG
	Kumar	       MAT

What I have tried:

While searching SQL query from google, I cant get proper solution

Posted 17-Jul-17 16:28pm

SnvMohan

Updated 17-Jul-17 18:29pm

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Atlapure Ambrish 17-Jul-17 22:46pm

Can you try this? I have not verified it, but it seems this is similar to your problem statement. https://forums.asp.net/t/1605429.aspx?SQL+Join+Tables+on+Column+Name+and+Row+Field+Value

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Karthik_Mahalingam · Accepted Answer · 2017-07-17T18:29:00

Solution 1

select * from tablea where category in ( select COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = 'tableb')

Posted 17-Jul-17 18:29pm

Karthik_Mahalingam

Comments

SnvMohan 18-Jul-17 0:43am

Thank you so much, Its working