How to Join the two table

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How to Join the two table

ramanathan.raman88

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Points: 366
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February 2, 2013 at 2:45 am

#273759

Table 1
ABCDF
A1B1NULLNULLNULL
A2B2NULLNULLNULL
A3B3NULLNULLNULL
A4B4NULLNULLNULL
A5B5NULLNULLNULL
Table 2
LocName
A1White
A2Black
A3Red
A4Orange
A5Blue
B1Green
B2Yellow
B3Gold
B4Rose
B5Silver

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Sean Lange SSC Guru Points: 286590 More actions · Answer 1

Use an OR condition in your join statement?

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josh.granville SSC Journeyman Points: 80 More actions · Answer 2

ramanathan.raman88 (2/2/2013)
Table 1
ABCDF
A1B1NULLNULLNULL
A2B2NULLNULLNULL
A3B3NULLNULLNULL
A4B4NULLNULLNULL
A5B5NULLNULLNULL
Table 2
LocName
A1White
A2Black
A3Red
A4Orange
A5Blue
B1Green
B2Yellow
B3Gold
B4Rose
B5Silver

So your just asking how to join the two tables..?

Snigdha Vartak Default port Points: 1486 More actions · Answer 3

Hi,

What are trying to do? Use Left / Right / Inner joins as required.

SELECT A,B,C,D,E,F,Name FROM TABLE1 LEFT JOIN TABLE2 ON A=Loc

SELECT A,B,C,D,E,F,Name FROM TABLE1 RIGHT JOIN TABLE2 ON Loc=A

SELECT A,B,C,D,E,F,Name FROM TABLE1 INNER JOIN TABLE2 ON A=Loc

Refer: http://www.w3schools.com/sql/sql_join.asp

Jeff Moden SSC Guru Points: 1004405 More actions · Answer 4

ramanathan.raman88 (2/2/2013)
Table 1
ABCDF
A1B1NULLNULLNULL
A2B2NULLNULLNULL
A3B3NULLNULLNULL
A4B4NULLNULLNULL
A5B5NULLNULLNULL
Table 2
LocName
A1White
A2Black
A3Red
A4Orange
A5Blue
B1Green
B2Yellow
B3Gold
B4Rose
B5Silver

The absolute best way would be to normalize Table 1. 😉

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

ParulPrabu SSCrazy Points: 2271 More actions · Answer 5

ParulPrabu

SSCrazy

Points: 2271

October 8, 2013 at 1:20 am

#1656623

What are you expecting?

Dwain Camps SSC Guru Points: 86978 More actions · Answer 6

Looks like homework, but if what you're after is the Names associated with columns A and B, perhaps a correlated sub-query would be best:

CREATE TABLE #Table1

(A CHAR(2), B CHAR(2), C VARCHAR(20), D VARCHAR(20), F VARCHAR(20));

INSERT INTO #Table1

SELECT 'A1','B1',NULL, NULL, NULL

UNION ALL SELECT 'A2','B2',NULL, NULL, NULL

UNION ALL SELECT 'A3','B3',NULL, NULL, NULL

UNION ALL SELECT 'A4','B4',NULL, NULL, NULL

UNION ALL SELECT 'A5','B5',NULL, NULL, NULL;

CREATE TABLE #Table2

(Loc CHAR(2), Name VARCHAR(20));

INSERT INTO #Table2

SELECT 'A1','White'

UNION ALL SELECT 'A2','Black'

UNION ALL SELECT 'A3','Red'

UNION ALL SELECT 'A4','Orange'

UNION ALL SELECT 'A5','Blue'

UNION ALL SELECT 'B1','Green'

UNION ALL SELECT 'B2','Yellow'

UNION ALL SELECT 'B3','Gold'

UNION ALL SELECT 'B4','Rose'

UNION ALL SELECT 'B5','Silver';

SELECT A, B

,NameOfA=(SELECT Name FROM #Table2 b WHERE a.A = b.Loc)

,NameOfB=(SELECT Name FROM #Table2 b WHERE a.B = b.Loc)

FROM #Table1 a;

GO

DROP TABLE #Table1, #Table2;

My mantra: No loops! No CURSORs! No RBAR! Hoo-uh![/I]
My thought question: Have you ever been told that your query runs too fast?

My advice:
INDEXing a poor-performing query is like putting sugar on cat food. Yeah, it probably tastes better but are you sure you want to eat it?
The path of least resistance can be a slippery slope. Take care that fixing your fixes of fixes doesn't snowball and end up costing you more than fixing the root cause would have in the first place.

Need to UNPIVOT? Why not CROSS APPLY VALUES instead?[/url]
Since random numbers are too important to be left to chance, let's generate some![/url]
Learn to understand recursive CTEs by example.[/url]
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