Track of table changes in a database

how to keep track of table changes in a database.
Some records have been deleleted, is there away of seeing that change.

basically, if you havn't already set up a mechanism to track these sorts of changes, they are already lost.
there are a number of things you can do. one method that we use is a trigger on the table to insert a record into an audit table for every row that gets changed or deleted.
oracle has some other built in auditing tools that I'm not familiar with though.

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Tracking the table changes

Hi All,
We need to have a trace on the changes(direct/transactional) made to one particular field of a table (LFA1-ESRNR). We have already explored the following options:
--> Attempting the change log in the table is expected to have a huge hit on the system memory.
--> Another option of tracking this field is the data base level is ruled out because it's not recommended practice.
--> The option of logging the changes through vendor master changes is also ruled out because requirement is to track the changes done directly to the table.
Any pointers to this direction would be highly appreciated.
Thanks and Regards,
Ashish

Hi Ashish ..
The best way to do is using Change douments .. Since SAP provided the Change doc mainly for this..
Tables: CDHDR and CDPOS.
Tcode: SCDO. Vendor Master : KRED is the Change doc object.
For this the Corresponding data element of LFA1-ESRNR i.e ESRNR is already flagged with Change Document property.
What do u mean by directly updating table .. is it in SE11 or SM30 ..
Then In the Generated Table maintenance program incorporate the Change document logic also .
<b>reward if helpful</b>

How to identify or track the latest changes in database objects

Hi,
I am working in an application which has Oracle 10 g for backend.
the application in total has around 30 tables and around 25 packages. I want to track the latest changes made in database. The database is accessible to my team of 20 members and i want to keep track what all changes in database(tables ,packages) are being made by them.Which package or table is being affected?
Can yanyone please suggest how to track the same?

To track table changes see following discussion: Re: How to find Last modified/updated time of a particular table

Help with creating a sql file that will capture any database table changes.

We are in the process of creating DROP/Create tables, and using exp/imp data into the tables (the data is in flat files).
Our client is bit curious to work with. They do the alterations to their database (change the layout, change the datatype, drops tables) without our knowing. This has created a hell lot of issues with us.
Is there a way that we can create a sql script which can capture any table changes on the database, so that when the client trys to execute imp batch file, the sql file should first check to see if any changes are made. If made, then it should stop execution and give an error message.
Any help/suggestions would be highly appreciable.
Thanks,

Just to clarify...
1. DDL commands are like CREATE, DROP, ALTER. (These are different than DML commands - INSERT, UPDATE, DELETE).
2. The DDL trigger is created at the database level, not on each table. You only need one DDL trigger.
3. You can choose the DDL commands for which you want the trigger to fire (probably, you'll want CREATE, DROP, ALTER, at a minimum).
4. The DDL trigger only fires when one of these DDL commands is run.
Whether you have 50 tables or 50,000 tables is not significant to performance in this context.
What's signficant is how often you'll be executing the DDL commands on which the trigger is set to fire and whether the DDL commands execute in acceptable time with the trigger in place.

Noftification or warning after change of one database table field

HI
i want to send a warning or notification , when one field in a table changed with a database after update trigger and show the message to user in application layer
in more detaile
when user insert or update table1 then a trigger changes table2. and i want after this change,if the value of one attribute of table2 was equal to a query result then it send a message to user in application layer
what can i send this message
jdeveloper 11.1.2.2.0
database 11

HI
i want to send a warning or notification , when one field in a table changed with a database after update trigger and show the message to user in application layer
in more detaile
when user insert or update table1 then a trigger changes table2. and i want after this change,if the value of one attribute of table2 was equal to a query result then it send a message to user in application layer
what can i send this message
jdeveloper 11.1.2.2.0
database 11

Modification to track changes in a database

This ER diagram for a database. I need to make some modifications to the "WorkOrder" table so that I can track all the changes made to workorderID column. Also users want to be able to run some queries for example: To count the total number of
modified workorders. Please help me with the best solution. Thanks in advance.
I am thinking of a Type 2 dimension with a start date and Enddate and a flag. Please advise.
svk

Few solutions:
1. scripting your changes manually, then apply to all databases.
2. writing a DDL trigger to script your changes automatically and using it. ( adventure works database has its sample )
3. using SSDT (database project ) in visual studio, then using visual studio database compare tools.
more info: http://msdn.microsoft.com/en-us/data/tools.aspx
4. using third party database compare tools like Redgate etc.
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T-SQL blog

Change Tracking many tables

Hi,
I have a number of tables that are all related in some way or another. Lets say there are 20 tables in total here. I need to track changes as they all ultimately will need their changes sending to some other remote database.
Is it ok for me to use just a single change version, obtained at the beginning of my synchronisation code, within a SNAPSHOT transaction for every table I'm concerned about?
I would also need to validate the change version used before getting changes for each table using CHANGE_TRACKING_MIN_VALID_VERSION wouldn't I?
Once I have obtained all the changes for the 20 tables, then I would commit my transaction.
Regards

The thing is, there is a LOT of overhead to tracking many tables. It is a seductive idea, but you may not realize the full cost in complexity and overhead.
Have you looked at using replication instead? It's not that much cheaper, but it may at least be easier.
I think you are confusing Change Tracking with Change Data Capture. SDA is talking about the former.
I am not sure that I fully understand SDA's question, but, yes, a single snapshot transaction sounds right. (For Josh: Change Tracking is best used with snapshot isolation.) Particularly, if you want to retrieve changes that are consistent with each
other.
I am a little worrried abotu "single change version", since the version number for each table will be different. (Or at least they can be.)
Erland Sommarskog, SQL Server MVP, [email protected]

Table changes in database are not captured in ODI model level

Hi All,
Can any one help me how to fix the bug in ODI.
Table changes in database are not captured in ODI model level.
Thanks in advance

I created the interface which is running successfully.
Now i did some changes in target table(data base level).
I reversed the updated table in model section. Till here its ok
The table which is updated in the model section is not automatically updated in the interface.
I have to drop the existed datastore in the interface and and re do the entire process of bringing the updated datastore, mapping,etc..
Please tell the any alternate way.
Regards
suresh

How to send changes in the Database Table Periodically using Change Pointe

Hi,
How to send changes in the Database Table to the external system Periodically using Change Pointers.
Thanks & Regards,
Gopi.

That depends on what table you are referring to.

Will any change in tempdb database affect the user defined tables?

Will any change in tempdb database affect the user defined tables?
Suppose I have deleted a table from system database tempdb, will it effect the user defined tables?
Anujit Karmakar Sr. Software Engineer

The short answer is no; deleting a table from tempdb will not affect user databases.
Of course I could make up some connection between the two that you haven't described. For example, if a stored procedure created a temporary table, and was busy using it when you deleted it, the deletion could cause unexpected behavior in the user database,
which could affect some table data.
Also, some system actions in user databases can store data in tempdb temporarily. But you aren't likely to be talking about system usages of tempdb.
So, unless you describe some connection, the tables in tempdb are independent from the user database tables.
Rick Byham, Microsoft, SQL Server Books Online, Implies no warranty

Processing changes in Syabse database table

Can someone help me understand best way to process changes on a database table using XI?
I'm crrently doing this using webmethods where webmethods generates a xml document whenever a row is inserted in a database using adapter notification mechanism. Then I can process this document by calling webservice.

Thx Naveen,
e.g. I insert a customer record in Sybase system, I would like that XI interface would insert same customer in SAP or another Database system and this should happen as a result in insert in Sybase table.
Other way I can already achive this is by having XI look in a sybase table periodicaly and see if there are new rows of data added to the table since it last looked and then process those rows accordingly. I don't want to use this approach since it keeps looking at certain intervals and most of the time there won't be anything for it to process. Also when there is something to process, it will not be processed instanteneously but only when XI looks at the table next time around.
This is whole debate about pushing data v/s polling for changes. I would like to push the info at the time data is inserted in sybase table instead of having to poll for it.
appreciate your response.

Synchronize table changes from Database to ODI

HI all,
which is the best approach to synchronize database changes into ODI.
Is there any way of automate it?
FOr instance, if we have a datastore as target and some data types are changes in the database, re-reverse will not apply these changes ...
Thanks

Hi ,
Try this ...
http://oracledwbi.wordpress.com/2010/03/12/synchronising-odi-datastore-with-database-changes/
Regards,
Rathish

Data in the table changes when multiple users try to submit data

I have a dynamic table. The table is created in the wdDoModifyView. The user can load data into the table from an excel file. So I have a "Load" button that loads the data from the selected excel file to the table. I also have a "Submit" button. This "Submit" button converts the data to an xml file and make a call to an oracle stored procedure for validation check. If there's an error it will be returned and displayed to the user. If none, a summary of data for posting will be displayed to the user. If the data is correct and the user hit the ok button, the same data will be return to oracle sp for loading in the table.
The problem we encountered is when multiple users are loading and submitting at the same time, the data displayed in the dynamic tables changes after clicking the ok button. It is as if, the table displays the data being loaded by other user.
This is an error that is difficult to recreate. This doesn't happen all the time. I hope you somebody could enlighten me why this is happening. I'm not sure if it has something to do with multithreading or session.
Edited by: Marlyn Agco on Apr 14, 2009 3:57 PM

Hi Armin,
Did you mean storing view instances in static references and accessing them outside the wdDoModifyView is not a good idea? In wdDoInit the nodes are dynamically created according to the xml file being returned by the database. This node is stored in a static variable which is also used in wdDoModifyView to create the dynamic table.
What do you suggest? We're still encountering same issue when multiple users are uploading data.

Change of a database link in OWB

I have a good suggestion to change a a database link when a server is moved to another location (in that case the database link of the source module has to be changed)
In OWB 9.0.2 it's not impossible to delete a database link in OWB, so you have to do it manually
(in 9.0.4 it should be possible, but this version is also not easy to use).
- Start SQL Plus and log in as the schema on which the OWB repository is created (e.g. OWB).
- Drop the database link ('drop database link <dblink name>')
- Create a new database link in the same schema with the new parameters, e.g:
CREATE DATABASE LINK "<dblink name>"
CONNECT TO "<...>" IDENTIFIED BY "<...>"
USING '(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP) (Host = <hostname>) (PORT = 1521))) (CONNECT_DATA = (SID = <sid> )))'
Done!
No stupid errors in OWB when you create the database link in OWB itself.
Regards,
Maurice
;

SQL> create view test_view as select dummy from [email protected]
2 ;
View created.
SQL> select dummy from test_view;
D
X
Execution Plan
0 SELECT STATEMENT (REMOTE) Optimizer=CHOOSE
1 0 TABLE ACCESS (FULL) OF 'DUAL' FIRST9.XXXX.COM
Statistics
7 recursive calls
4 db block gets
2 consistent gets
0 physical reads
212 redo size
363 bytes sent via SQL*Net to client
425 bytes received via SQL*Net from client
2 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
1 rows processed
NOW WE PULL OUT THE NETWORK CABLE connecting the two servers.
SQL> select dummy from test_view;
select dummy from test_view
ERROR at line 1:
ORA-02068: following severe error from FIRST9.XXXX.COM
ORA-03113: end-of-file on communication channel
So all you have to do is to test for the communications error.

Creating new tables in Logical Standby database

Hi
I have a requirement to create new tables in logical standby database. These tables will not be present on primary database. Is it possible to do this ?
I have a new schema already created which has the privilege to CREATE new table.
I have stopped the logical standby apply.
When I am now trying to create a new table but it is failing with error : insufficient privileges.
When I am trying to run below statement on new schema it is also failing with error of insufficient privileges.
alter session disable dataguard;
Please help.

user8819121 wrote:
Thanks Mahir,
I was able to create the table after logging in as sysdba.
But I need my user on that table to execute DML statements. My user has privileges to insert,delete and update any table.
I tried the following statements to disable the guard but it is sill not working
ALTER DATABASE GUARD STANDBY.
Do I need to skip the tables created using dbms_logstdby package to not making it part of SQL Apply ? I guess not since the table is not in primary database.
Amit
You can skip only on primary, your created schema on Standby is not in primary.
Then you must change Status of data guard to NONE. NONE is means is not any security on your data.
In Guard status NONE can change all schema data.
Please check link: http://docs.oracle.com/cd/E11882_01/server.112/e10700/manage_ls.htm#CHDGFGHG
Following tests on user created before guard status is change from ALL to STANDBY.
C:\Users\Administrator>sqlplus / as sysdba
SQL> conn test/test
Connected.
SQL> select table_name from user_tables;
TABLE_NAME
T
SQL> insert into t values(22);
insert into t values(22)
ERROR at line 1:
ORA-16224: Database Guard is enabled
SQL> conn / as sysdba
Connected.
SQL> select guard_Status from v$database;
GUARD_S
ALL
SQL> alter database guard standby;
Database altered.
SQL> conn test/test
Connected.
SQL> insert into t values(1);
insert into t values(1)
ERROR at line 1:
ORA-16224: Database Guard is enabled
SQL> conn / as sysdba
Connected.
SQL> select guard_Status from v$database;
GUARD_S
STANDBY
SQL> alter database guard none;
Database altered.
SQL> select guard_Status from v$database;
GUARD_S
NONE
SQL> conn test/test
Connected.
SQL> insert into t values(1);
1 row created.
SQL> commit;
Commit complete.And Now I want share with you new tests :)
Now user creating when after guard status change
SQL> drop user test cascade;
User dropped.
SQL> select guard_status from v$database;
GUARD_S
STANDBY
SQL> create user test identified by test;
User created.
SQL> grant create session, resource, create table to test;
Grant succeeded.
SQL> conn test/test
Connected.
SQL> create table t (n number);
Table created.
SQL> insert into t values(1);
1 row created.
SQL> commit;
Commit complete.
SQL>It means when guard status is ALL then all of user created guarding.
When you changed status to STANDBY then Logical Standby guard only primary schema and created schema before change.
NONE is not guard any schema. it means you can delete standby schema data too.
Regards
Mahir M. Quluzade
Edited by: Mahir M. Quluzade on Apr 19, 2013 4:07 PM

Track of table changes in a database

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