Finding difference of two databases

Hi
I have a webapplication connected to SQL Server 2012 Web Edition.
As soon as the webserver is down I start a second webserver, which needs to have the same content, also on SQL DB level.
That’s why I take a backup of the SQL Server on the first server recovering it to the second server. This works fine.
The database name as well as the database user name are the same on both SQL servers. This database user has owner rights on database level. The configuration does not change, during recovery process on the target server, which overwrites
the earlier content state of the db.
For any reason the webapplication cannot connect to the database afterwards. Of course the contents of the html files in the IIS webfolders are identical on both servers.
The application connects via IP address 127.0.0.1 (not server name), database name, database user and password, all these parts have also been initially set on both servers in the same way.
It seems, that the two databases still have a slight difference.
Your input is welcome.
Patrick

The application connects via IP address 127.0.0.1 (not server name), database name, database user and password, all these parts have also been initially set on both servers in the same way.
It seems, that the two databases still have a slight difference.
When you restore a database to a different instance, there may be a SID mismatch between the login in the master database and the user in the user database. This can be corrected with ALTER USER for a normal user:
USE MyDatabase;
ALTER USER YourDatabseUserName
WITH LOGIN = YourLoginName;
You mentioned database owner permissions (a questionable practice from application code). If the problem login is the database owner, you can change the database owner (mapped to dbo user) with ALTER AUTHORIZATION:
ALTER AUTHORIZATION ON DATABASE::MyDatabase TO YourLoginName;
If this doesn't resolve the issue, please post the error message.
Dan Guzman, SQL Server MVP, http://www.dbdelta.com

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Finding difference between 2 databases

Hi Folks,
I have the following problem:
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I have explained my manager that this is not very easy to implement. Even finding difference between 2 DB is not trivial. Do you guys have any suggestion for me? whether in terms of implementing it or even convincing my boss is fine :)
Are there any open source tools to do this? I am in big trouble now :(
Thanks,

Unless there is some other goal that you have not mentioned this is fairly easy.
Just delete all the tables from the old database using SQL delete tables and then create new tables and populate them with data from the new database.
Your SQL is basically just a serialization of the data in your new database.
Anything else that you could do, such as calculating the differences from the one database to the other, and then creating a minimal edit list that will make the least possible number of changes must be weighed against the time it will take to write the code to compute the differences, the time it will take to debug the code and convince yourself that it is doing the right thing, and the time it will take to actually run.

Get Differences between two databases

Hello there,
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best regards,
Jörn

Hi there,
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=To_Char (object name, required format)
Find the below link for more info.
http://scn.sap.com/community/semantic-layer/blog/2014/04/18/bi41-business-layer-enhancements--create-display-format
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Find Differences between two tables at column level

Hi,
I have 2 tables one live table and the other History table..
If i have to find differences between live table and the latest version in the History table and also find which column got chaanged
How would i do that for a table which has many columns and i need each column for which the value has changed for a id
for ex:
Table 1 (LIve) Table 2 (History)
ID col1 col2 Version ID col1 col2 Version
1 ABC 123 V1 1 ABCD 123 v2
2 NBS 1234 V1 2 NBS 123 V2
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1 col1
2 col2
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The dynamic version using schema views... :D
--Build a coulple OF testing tables to play with
CREATE TABLE dbo.Table1 (
ID INT IDENTITY(1,1) PRIMARY KEY,
Col1 INT,
Col2 INT,
Col3 INT
CREATE TABLE dbo.Table2 (
ID INT IDENTITY(1,1) PRIMARY KEY,
Col1 INT,
Col2 INT,
Col3 INT
INSERT dbo.Table1 (Col1,Col2,Col3) VALUES
(123,456,789),
(111,222,333),
(444,555,666),
(777,888,999),
(321,345,769),
(179,753,758),
(362,362,236),
(856,874,896),
(821,729,324)
INSERT dbo.Table2 (Col1,Col2,Col3) VALUES
(123,456,789),
(111,999,333), --col2 diff
(444,555,666),
(777,888,999),
(321,345,123), --col3 diff
(179,753,758),
(362,362,236),
(234,874,896), --col1 diff
(821,729,324)
And then the actual solution...
DECLARE
@t1 VARCHAR(10) = 'Table1',
@t2 VARCHAR(10) = 'Table2'
IF OBJECT_ID('tempdb..#temp') IS NOT NULL DROP TABLE #temp
SELECT
c.TABLE_SCHEMA,
c.TABLE_NAME,
c.COLUMN_NAME,
c.ORDINAL_POSITION,
CASE WHEN u.COLUMN_NAME IS NOT NULL THEN 1 ELSE 0 END AS PK
INTO #temp
FROM
INFORMATION_SCHEMA.COLUMNS c
JOIN INFORMATION_SCHEMA.TABLES t
ON c.TABLE_NAME = t.TABLE_NAME
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
LEFT JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE u
ON c.COLUMN_NAME = u.COLUMN_NAME
AND c.TABLE_NAME = u.TABLE_NAME
AND c.TABLE_SCHEMA = u.TABLE_SCHEMA
AND OBJECTPROPERTY(OBJECT_ID(constraint_name), 'IsPrimaryKey') = 1
WHERE 1 = 1
AND t.TABLE_TYPE = 'BASE TABLE'
AND c.TABLE_NAME IN (@t1,@t2)
ORDER BY
c.TABLE_SCHEMA, c.TABLE_NAME, c.ORDINAL_POSITION
DECLARE @select VARCHAR(MAX)
SELECT @select = COALESCE(@select + ', ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
ORDER BY t.TABLE_NAME, t.ORDINAL_POSITION
DECLARE @from VARCHAR(MAX)
SELECT @from = COALESCE(@from + ' FULL JOIN ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME
FROM #temp AS t
WHERE t.PK = 1
ORDER BY t.TABLE_NAME
DECLARE @on VARCHAR(MAX)
SELECT @on = COALESCE(@on + ' = ', '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
WHERE t.PK = 1
ORDER BY t.TABLE_NAME, t.ORDINAL_POSITION
DECLARE @where VARCHAR(MAX)
SELECT @where = COALESCE(@where + CASE WHEN t.TABLE_NAME = @t1 THEN ' OR ' ELSE ' <> ' END, '') + t.TABLE_SCHEMA + '.' + t.TABLE_NAME + '.' + t.COLUMN_NAME
FROM #temp AS t
WHERE t.PK = 0
ORDER BY t.ORDINAL_POSITION, t.TABLE_NAME
DECLARE @sql VARCHAR(MAX) = '
SELECT ' + @select + '
FROM ' + @from + '
ON ' + @on + '
WHERE ' + @where
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HTH,
Jason

To find difference between two dates

Hi all,
I am new to this forum and oracle.
I want to get the difference between two dates. My query is as below...
sqlserver_utilities.datediff('YY', startdate,enddate)
I want the difference in year.
Please help me. It's really urgent.
Thanks in advance.
Regards,
Inam

Select to_char(enddate,'YY') - to_char(startdate,'YY') fromPLEASE don't do that. There are so many things wrong with it...
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2). What if the start date is 1999 and the end date is 2000? Do you expect to get a difference of -1?
3). What if the start date is 1 Jan 2000 and the end date is 31 Dec 2000? Do you expect to get 0 instead of 1 or .997?
4). Why would you convert dates to something else when they are inherently subtractable.
5). There are obvious points in the OP's "specification" that are vague - the best thing (after telling them to search, of course since this has been answered a million times already) would be to try to clarify the spec.
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How to find differences between two columns

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Find difference between two numbers (DBL)

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Solved!
Go to Solution.

I think if he wanted to find absolute value he would have mentioned it.
And not asked about other function for taking difference.
Do you want to fight over this? When it is mentioned "DIFFERENCE" and not "ABSOLUTE" value.
Anyways..Will fight tomorrow. I am going home.
Best of luck
Gaurav k
CLD Certified !!!!!
Do not forget to Mark solution and to give Kudo if problem is solved.

Detecting differences between two databases

We've two big databases (20 Gb) on essbase 6.5 and System 9. We need to know if there are any differences between them. Is there a way to do that different from querying both databases with a lot of reports and comparing them?
Any suggestion will be helpful.
Thanks and regards,
Joaquin Castellano

You can compare two dbs with something I call a difference cube. For example, lets say you have two 5 dimensional databases that are very similar. Perhaps you made some changes in calcs and want to see the impact. Call the cubes Before and After . You could make a third copy and add a dimension. The members of the 6th dimension would be Before, After and Difference. Put a calc on Difference = After-Before. You can load the 5 dims worth of data from before to the before member and the same thing with after. You need to either use a rule with a header or you can use @XREF or partitioning. You can actually zoom and pivot through the resulting cube to identify differences.
There are some tricks to getting it right.
The first is to load the 5D data to the 6D cube. That's really not hard if you know how to use @XREF or parititioning or headers in a rule. I can explain this in detail or if you like I'll show you via a webex support session.
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Here is a link to a pdf that helps explain the process.
http://www.mtgny.com/Difference%20Cubes.pdf
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[email protected]

Find difference between two vectors ?

Hi,
I have two vectors, the first contains:
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Does anybody have en idea ?
Regards
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Oracle 11g sql to find difference from two table data

I have two tables ACTUAL AND ESTIMATE having unique column(sal_id, gal_id) and amount, tax, date columns.
ACTUAL table
actual_id, sal_id, gal_id, process_flag, amount, tax date
A1 101 201 Y 10 1 27-Aug-12
A2 102 202 Y 20 2 27-Aug-12
A3 102 202 N 30 3 29-Aug-12
A4 302 402 N 40 3 30-Aug-12
ESTIMATE table
estimate_id, sal_id, gal_id, process_flag, amount, tax date
E1 301 401 Y 5 1 19-Aug-12
E2 302 402 Y 45 4 20-Aug-12
E3 302 402 Y 50 5 25-Aug-12
E4 301 403 Y 10 2 27-Aug-12
E5 301 403 N 15 3 28-Aug-12
E6 101 201 Y 12 3 29-Aug-12
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FINAL table
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null E5 301 403 5 1 (E5-E4 estimate-estimate)
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Edited by: Suresh on Aug 31, 2012 7:38 PM
Edited by: Suresh on Aug 31, 2012 7:38 PM
Edited by: Suresh on Aug 31, 2012 10:53 PM

You need to provide better explanation here.A-A is always null.
You might be looking for something like this..
Untested version and also i cannot read your mind
select actual_id, sal_id, gal_id, process_flag,ld_amount,ld_tax,e_date
from(
select actual_id, sal_id, gal_id, process_flag,e_date, amount-lead(amount) over(partition by sal_id, gal_id order by e_date desc) ld_amount,
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rank() over(partition by sal_id, gal_id order by e_date desc)rnk
from
(select * from actual a union
select * from estmt e)
) where rnk=1

How to find difference in two tables

Hi all,
I am having 2 tables (Table1 and Table2 ) same structure.
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Thanks for your solution. It is working, but my problem is
Table1
COL1     COL2     COL3     COL4
1     col2     col3     col4
2     col2     col3     col4
3     col2     col3     col4
4     col2     col3     col4
Table2
COL1     COL2     COL3     COL4
5     col2     col3     col4 -- New row
6     col2     col3     col4 -- New row
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2     col2     col3     col4
3     col2     col33     col4 -- Different column value
4     col2     col3     col4
select * from test2
minus
select * from test1
COL1     COL2     COL3     COL4
1     col2     col3     col44 --- needs to be update
3     col2     col33     col4 --- needs to be update
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I need some help with
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newfile.txt:
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I need help with this task please!.
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Suppose you have two arrays filled with integers.
What you want to do is map the integers from one
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In your example, your arrays would look like:
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Finding difference of two databases

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