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You cannot edit the data in the table.
Field names are marked as locked.
How do I solve this?
DB : ORACLE
try to refresh the database connection. It worked for me, I couldn't insert rows after creating the table.
Never used dbeaver myself... after a little googling found this forum
post: https://dbeaver.io/forum/viewtopic.php?f=2&t=621
Though, this is an old post it mentions that:
DBeaver can edit table only if it has at least one unique key or index
and also
regarding oracle pseudo columns like rowid
for now DBeaver doesn't support "hidden" pseudocolumn at all
So, could you check if you can edit tables with unique key?
Related
This question already has an answer here:
Use of FLASHBACK in Oracle
(1 answer)
Closed 6 years ago.
I am new to Oracle Advance concepts, In my application I have accidentally "truncate" the data. I am facing difficulty to
restore the truncated data. I googled about it alot, I found there is "FLASHBACK" command from oracle 10g. I tried it using timestamp approach in flashback
but I am getting the following error:
Error: The table definition has changed.
Could any body tell me how to get back my truncated table data?
Is it possible? If it is Please let me know the procedure to get back the data.
The error message is pretty clear. FLASHBACK is not available if you had DDL operations on the table (add or drop column, add or drop constraint, etc.) It's right there in the first paragraph in the documentation. http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9012.htm As Tim suggests - this is where backing up your data would have helped.
Edit: To be very precise, the wording in the Oracle documentation is (with my emphasis): Oracle Database cannot restore a table to an earlier state across any DDL operations that change the structure of the table. So adding or dropping a column will prevent the use of FLASHBACK since they change the structure of the table. TRUNCATE does not, so TRUNCATE by itself does not prevent FLASHBACK (although TRUNCATE is a DDL operation). I got carried away in the first paragraph with "add or drop constraint" - I actually don't know if that will prevent FLASHBACK; one can find out by experimenting.
We have a legacy app that I am rewriting in .net. All of our databases are oracle and make use of database links. Is there any way for Entity Framework 6 to generate models based on tables located on a different database?
Currently the legacy app gets data from table like this
SELECT * FROM emp#foo2;
where its db connection is to database foo that has a database link to the database foo2.
I would like to reproduce this using EF6. So far all I have found regarding this is this question.
You can do two things that EF 4 or higher will work with:
CREATE VIEW EMP as SELECT * FROM emp#foo2;
CREATE MATERIALIZED VIEW EMP as SELECT * FROM emp#foo2;
LOBS are not accessible across a database link without some contorted PL/SQL processing to read the LOB piece by piece.
I believe fast refresh does not work across database links so you must consider the size of the table on the linked database. If you are refreshing a million rows you may find the time to do this is an issue. Most large tables are full of tombstone data that never changes so a timestamp column with the last modified date could help you create a package that only picks out the changed data.
If you are doing complicated joins for either ensure that Oracle considers the column that would be the primary key as not null.
You can add a primary key on views and materialized view but it must be disabled. See here for details.
I am reverse-engineering an application which administers an Oracle database.
Everything is new to me (application + database)
There is a statement there somewhere, which is:
SELECT * FROM XXX#YYY (XXX is a word, YYY another word)
If I go into my database with TOAD I can't find an 'XXX#YYY' table nor view. If I copy paste the statement in TOAD's editor, I get results as if the table exists.
I know that the '#' symbol is allowed for naming an Oracle object. Is it possible that it means something else here though?
How can I find the table (or view)? Is it possible to get information through a statement such as which schema does 'XXX#YYY' belong to or weather it is a table or a view, so that I can track it?
The database consists of many schemas. There is a default one. Is it possible that XXX#YYY may belong to another schema, rather than the default?
Please help me find the table.
Identifier behind # is database link. It is a way to access objects on some remote Oracle server. more info on http://docs.oracle.com/cd/E11882_01/server.112/e26088/statements_5005.htm#SQLRF01205
In Toad/Oracle XXX#YYY means object#database_link.
Look for the schema in your DB, there you will find the table.
Btw: I think its better to use SCHEMA.TABLENAME
If you have problems finding the SCHEMA, go to View->Toad Options, select Treeview at Browser style and then it should display all schemas.
visual studion 2008
oracle db 11.1.0.7
oracle client for .NET
I have a relatively simple query, that selects the rows from across multiple tables (up to 4) using joins. OracleDataAdapter returns no rows for the only dataset's table, but if I copy and paste that query in SQLDeveloper then I get the desired results.
I can get the data from other tables using the adapter with no problem, but it seems like it struggles with the bit longer selection query (string length is ~ 300 (not that much at all))
Connection string for the connection is 100% correct.
Any ideas? thank you...
Check that you using same oracle user to connect to database. Maybe FGAC hides data.
Check that there is no temporary tables in you query.
Solution by OP.
The problem was, that after I imported the data in the SQLDeveloper in one of the involved tables, this change hasn't been committed automatically as I've falsely presumed... I've figured this out after I edited some data in the same table within the SQLDeveloper, and it has failed with the message that the edit operation on uncommitted action is now allowed. The headache I had was in SQLDeveloper, not the DataAdapter.
I have 62 columns in a table under SQL 2005 and LINQ to SQL doesn't handle the updates though the reading would work just fine, I tried re-adding the table to the model, created a new data model but nothing worked, I'm guessing I've hit the maximum number of columns limit on an object, can anyone explain that ?
I suspect there is some issue with an identity or timestamp column (something autogenerated on the SQL server). Make sure that any column that is autogenerated is marked that way in the model. You might also want to look at how it is handling concurrency. If you have triggers that update any values on the row after it is updated (changing values) and it is checking all columns on updates, this would cause the update to fail. Typically I create my tables with a timestamp column -- LINQ2SQL picks this up when I generate the model and uses it alone for concurrency.
Solved, either one of the following two
-I'm using a UniqueIdentifier column that was not set as Primary key
-Set Unique ID primary key, checked the properties of the same column in Server Explorer and it was still not showing as Primary key, refreshed the connection,dropped the same table on the model and voila.
So I assume I made a change to my model some time before, deleted the table from the model and added the same from the Server explorer without refreshing the connection and it never used to work.
Question is, does VS Server Explorer maintain it's own table schema and requires connection refresh everytime a change is made in the database ?
There is no limit to the number of columns LINQ to SQL will handle.
Have you got other tables updating successfully?
What else is different about how you are accessing the table content?