sql query for retrieving matched and unmatched records from two tables.

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Hi,
sql query for retrieving matched and unmatched records from two tables.

table1
Id Name Address Date Month Year
1 sony Hyd 10 06 2013
2 jhon Blr 5 06 2013
3 Ravi Hyd 6 06 2013

table2
id sal
2 10,000
3 20,000

O/P:
id Status Catagory Name Address Sal
1 Un_matched 0-5 sony Hyd 0
2 matched 5-10 jhon Blr 10,000
3 matched 5-10 Ravi Hyd 20,000

Posted 11-Jun-13 21:48pm

jhon123 2

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gvprabu · Answer 1 · 2013-06-11T22:49:00

Solution 1

Hi,

Check t he following script...

SQL

SELECT T1.ID,
	CASE WHEN T2.ID IS NULL THEN 'Un_matched'
        ELSE 'matched' END 'Status',
	CASE WHEN DATEDIFF(Day,CAST(T1.Year as VARCHAR(4))+ '-' + CAST(T1.Month As VARCHAR(2))+ '-' + CAST(T1.Day As VARCHAR(2)),GETDATE())>=-5 THEN '0-5'
	     WHEN DATEDIFF(Day,CAST(T1.Year as VARCHAR(4))+ '-' + CAST(T1.Month As VARCHAR(2))+ '-' + CAST(T1.Day As VARCHAR(2)),GETDATE())<-5 THEN '5-10'
	ELSE '-' END 'Category',
        T1.Name,
        T1.Address,
        ISNULL(T2.Sal,0) 'Sal'
FROM tabl1 T1
LEFT OUTER JOIN table2 T2 On T2.id=T1.id

Regards,
GVPrabu

Posted 11-Jun-13 22:49pm

gvprabu

Updated 12-Jun-13 1:00am

v6

Comments

jhon123 2 12-Jun-13 6:32am

Hi,
It will shows one error message.i,e

Incorrect syntax near 'B'.Expecting Select,or '('.

gvprabu 12-Jun-13 6:37am

Send your full error message

jhon123 2 12-Jun-13 6:39am

error is
Incorrect syntax near 'B'.

jhon123 2 12-Jun-13 6:40am

Msg 102, Level 15, State 1, Line 9
Incorrect syntax near 'B'.

gvprabu 12-Jun-13 6:41am

ok, Comment the "Category" and check. Because there is NO 'B' in this Query :-)

gvprabu 12-Jun-13 6:43am

I updated, Check now. One ',' missed near by Address

jhon123 2 12-Jun-13 6:44am

i am replacing table name T1 as B

gvprabu 12-Jun-13 6:46am

See T1 is alias so U have to change all places Properly

jhon123 2 12-Jun-13 6:53am

thanks it is working. i have small doubt.

1st record is ok. but 2nd and 3rd records comes under the 5-10. but it will display 0-5

gvprabu 12-Jun-13 6:57am

oh ic, Then that condition is wrong in case Statement

gvprabu 12-Jun-13 6:59am

I updated, Check now. No SQL server in my office machine. So I can't able to check any Query :-(

gvprabu 12-Jun-13 7:01am

Check now...

jhon123 2 12-Jun-13 7:10am

updated query also shows same thing.

gvprabu 12-Jun-13 8:10am

Hi Check,
SELECT DATEDIFF(Day,CAST(T1.Year as VARCHAR(4))+ '-' + CAST(T1.Month As VARCHAR(2))+ '-' + CAST(T1.Day As VARCHAR(2)),GETDATE())
FROM your_table
and send the result for 2,3 rd rows

damodara naidu betha · Answer 2 · 2013-06-12T04:44:00

Hi John,

I have created tables as you mentioned in your question and added the data using following code block.

SQL

INSERT INTO Table_1 VALUES 
(1,'sony', 'Hyd','10','06','2013'), 
(2,'jhon','Blr','05','06','2013'), 
(3,'Ravi','Hyd','06','06','2013')


INSERT INTO Table_2 Values
(2,10000),
(3,20000)

Here is my query to get desired result set.

SQL

SELECT Table_1.Id,Table_1.Name, (CASE WHEN Table_2.Id IS NULL THEN 'Not Matched' ELSE 'Matched' END) As Status, 
CAST(DATEDIFF(D,(Table_1.Year+Table_1.Month+Table_1.Date) ,CONVERT(VARCHAR,GETDATE(),112)) 
- (DATEDIFF(D,(Table_1.Year+Table_1.Month+Table_1.Date) ,CONVERT(VARCHAR,GETDATE(),112)) % 5) AS VARCHAR)+'-'+
CAST(DATEDIFF(D,(Table_1.Year+Table_1.Month+Table_1.Date) ,CONVERT(VARCHAR,GETDATE(),112))
 - (DATEDIFF(D,(Table_1.Year+Table_1.Month+Table_1.Date) ,CONVERT(VARCHAR,GETDATE(),112)) % 5)+ 5 AS VARCHAR) As Category,
(CASE WHEN Table_2.Id IS NULL THEN 0 ELSE Table_2.Sal END) As Salary
FROM Table_1 LEFT JOIN Table_2 
ON Table_1.Id = Table_2.Id

I hope this helps you.

Happy coding.