how to compare cols in sql

Question

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SQL-Server-2008R2

Hi guys,

In Sql server 2008 r2.

I have two table with same no.of cols and cols name and its data type.

scenario

tableOne
------------------------------------
|col1  | col2       | date         |
|----------------------------------|
| A    | Apple      | 10/01/2014   |
|----------------------------------|
| B    | Ball       | 10/01/2014   |
------------------------------------

tableTwo
------------------------------------
|col1  | col2       | date         |
|----------------------------------|
| A    | Apple      | 10/02/2014   |
|----------------------------------|
| B    | Bat        | 10/02/2014   |
------------------------------------

I want to select those records which are not matching.

for eg: row 'A' of tableOne is matching with row 'A' of tableTwo,
but row 'B' of tableOne is not matching with row 'B' of tableTwo.

I want to select row 'B' from tableTwo because it is not matching.

The above tables are just given for scenario, in real time i have 1000's of records
in both the tables.

Can anyone please help me...

Thanks

Posted 19-Nov-14 7:41am

abdul subhan mohammed

Updated 19-Nov-14 20:40pm

v4

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Comments

Hasham Ahmad 19-Nov-14 13:48pm

can you also write down the result what you want to achieve?

DaveAuld 19-Nov-14 13:51pm

I would think the implementation is looking for 'B' on this definition because each day 'A' is 'Apple' but 'B' has changed. Could be wrong though!

abdul subhan mohammed 19-Nov-14 13:56pm

i want to select b which is not matching

Zoltán Zörgő 19-Nov-14 13:49pm

Quite unclear. Please try to give a much better example, and explain the logic better.

abdul subhan mohammed 19-Nov-14 13:55pm

i want to select b, which is not matching

Maciej Los 19-Nov-14 16:09pm

What you mean by saying "b is not matching"?

2 solutions

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Shweta N Mishra · Answer 1 · 2014-11-19T21:32:00

Solution 2

Try this

SQL

select * from tableTwo except select * from tableOne

Posted 19-Nov-14 21:32pm

Shweta N Mishra

v2

Tomas Takac · Answer 2 · 2014-11-19T10:13:00

Solution 1

Assuming you have the two dates in variables named @currDate and @prevDate. Further assuming there are no deleted or new records. Even further assuming that col2 is not null.

SQL

select curr.col1, curr.col2 as col2_curr, prev.col2 as col2_prev
from [table] curr
inner join [table] prev on prev.col1 = curr.col1
where curr.date = @currDate
and prev.date = @prevDate
and curr.col2 <> prev.col2

Posted 19-Nov-14 10:13am

Tomas Takac

Comments

Maciej Los 19-Nov-14 17:12pm

Tomas, sorry, but this is not generic issue. OP wants to "filter" thousands of records.

Tomas Takac 19-Nov-14 17:26pm

OK, I admit I don't understand what he means by that.