Whenever I try to apply filter to an attribute, which has ValueSelection= Dropdown, the dropdown is not populated and error message "The requested list could not be retrieved because the query is not valid or a connection could not be made to the data source" is shown instead.
If I set up ValueSelection=List I am getting a different error message:
An attempt has been made to use a semantic query extension associated with the data extension 'SQL' that is not registered for this report server.
(Microsoft.ReportingServices.SemanticQueryEngine)
This happens within BIDS environment and was observed both in SQL 2005 and SQL 2008.
I've already studied articles, which discussed the similiar problem, but neither of them applied to my case. The user account in data source has all necessary rights, data could be retrieved without any problem (for example if i try "Explore data" in data source view). The SQL profiler shows that no query is being sent to SQL Server when there is an attempt to populate dropdown. So nothing is wrong with the query, it is simply never executed.
Your connection is not working. Try to test you connection by trying a simple table and query output.
This will enable you to test the connection before trying anything advanced.
Got this problem and in my case it was caused by wrong connection string in Data Source - instead of just having a SQL Server name like "SOMESQLSERVER_MACHINE" I had for some reason "SOMESQLSERVER_MACHINE.our.corp.domain". It had to be the same, but then I realized that the domain is wrong, after removing it all works like a charm again. That said: it's always good idea to start with detailed checks on your basic settings.
Otherwise this could be a problem with permissions to the folders on Report Manager.
Related
I'm experiencing a very weird issue with "data has been changed" errors.
I use ms access as a frontend and postgresql as backend. The backend used to be in ms access and there were no issues, then it was moved to sql server and there were no issues there either. The problem started when I moved to postgresql.
I have a table called Orders and a table called Job. Each order has multiple jobs, I have 2 forms, one parent form for the Order and one Subform for the Jobs (continuous form). I put the subform in a separate tab, first tab contains general order information and the second tab has the Job information. Job is connected Orders using a foreign key called OrderID, Id of Orders is equal to OrderID in Job.
Here is my problem:
I enter some information in the first tab, customer name, dates etc, then move to the second tab, do nothing in the second tab, go back to the first one and change a date. I get "The data has been changed" error
I'm confused as to why this is happening. Now why I call this weird?
First, if I put the subform on the first tab, I can change all fields of Orders just fine. IT's only if I put it on the second tab and, add some info, change tab, then go back and change an already existing value that I get the error
Second, if I make the subform on the second tab Unbound (so no ID - OrderID) connection, I get the SAME error
Third, the "usual" id for "The data has been changed" error is Runtime Error 440. But what I get is Runtime Error: "-2147352567 (80020009)". Searching online for this error didn't help because it can mean a lot of different things, including "The value you entered isn't valid for this field" like here:
Access Run time error - '-2147352567 (80020009)': subform
or many different results for code 80020009 but none for "the data has been changed"
MS access 2016, postgresql 12.4.1
I'm guessing you are using ODBC to connect Access to Postgresql. If so do you have timestamp fields in the data you working with? I have seen the above as the Postgres timestamp can have a higher precision then Access. This means when you go to UPDATE Access uses a truncated version of the timestamp and can't find the record and you get the error. For this and other possible causes see:
https://odbc.postgresql.org/faq.html#6.4
Microsoft Applications
I'm facing this annoying problem in Jasper. I have created a report based on a PostgreSQL function. When I watch the preview, I do not have any problem with the results. However, when I publish the report and try to execute it, I get this error:
org.postgresql.util.PSQLException: ERROR: cannot execute CREATE TABLE in a read-only transaction
I've checked on the internet for a possible solution, so far this is the only thing that I have found with a similar problem:
https://community.jaspersoft.com/questions/814793/report-execution-fails-due-read-only-transaction-mode
However, adding the property to the URL does not work, or I'm not so sure if I have to write it in this way:
jdbc:postgresql://server:5432/data_base?defaultReadOnly="false"
In Jasper, what else can I do? I only can query the function, and requiring any change in it is an HUGE bureaucratic issue.
Jasper Studio 6.3.0
According to the documentation the JDBC connection parameter would be readOnly=false.
Have you verified that you are not connecting to a streaming replication standby server?
Orientdb throws on each live query subscripion using binary protocoll following Nullpointer exception:
Error executing live query subscriber. java.lang.NullPointerException at com.orientechnologies.orient.server.network.protocol.binary.OLiveCommandResultListener.onLiveResult(OLiveCommandResultListener.java:113)
at com.orientechnologies.orient.core.sql.OCommandExecutorSQLLiveSelect$2.call(OCommandExecutorSQLLiveSelect.java:134)
at com.orientechnologies.orient.core.sql.OCommandExecutorSQLLiveSelect.execInSeparateDatabase(OCommandExecutorSQLLiveSelect.java:144)
at com.orientechnologies.orient.core.sql.OCommandExecutorSQLLiveSelect.onLiveResult(OCommandExecutorSQLLiveSelect.java:131)
at com.orientechnologies.orient.core.query.live.OLiveQueryQueueThread.run(OLiveQueryQueueThread.java:69)
The Live Query is subscribed by one client: "live select from Account where CheckInDateTime like "2018-02-25%"", Orientdb returns also the live request token ID gracefully. But when another client updates Account with "update Account set CheckInDateTime = "2018-02-25 13:00:00"" the mentioned NullPointerexception is thrown. I've tried to use versions 2.2.30 and 2.2.32 Comunity, DB Administrator and Server Administrator accounts. Also loading of plugins seems not to work (even the used version is 2.2.30 and 2.2.32 where Live Query should be enabled at server by default). Nothing seems to help to get that work, also queries like "live select from account" (without where ...).
Any further ideas? Thx.
Currently live queries do not support the WHERE clause you included in the query.
You can only select entire collections or V and E (which is what I use to get all updates)
If you would like to filter using that where, you will have to write it yourself in code.
Thx for answering mitchken! Fortunately, I found the mistake. The TCP connection from client to DB was in wrong state (must be all the time in waitforreadyread).
I am practicing for Security Testing. I came across DVWA and I started practicing for Sql Injection. I was doing fine till I started with SQL Injection (blind). No matter which query I try I am not getting the desired result.
For eg :
1' and 1=0 union select null,table_name from information_schema.tables#
simply returns User ID exists in the database.
I have set the DVWA Security to Low. Also made sure there are no errors on setup page of the application under Setup Check section.
Following are environment details:
Operating system: Windows
Backend database: MySQL
PHP version: 5.6.16
I think the answer is here and the behavior is expected
https://github.com/ethicalhack3r/DVWA/issues/12
Someone complained of the opposite behavior and the developer agreed, and a contributor named g0tm1lk fixed it. He made the exercise really "blind" and we have to use blind injection methods to test the vulnerability.
Showing the SQL error messages to the user is just: a SQL injection vuln + a misconfiguration issue.
A blind SQL injection might occur when the columns of the results returned by a query are not shown to the user. However, the user can tell somehow if the query returned any records or none.
E.g.: Suppose the url "http://www.example.com/user?id=USER_ID" returns:
200 if USER_ID exists
404 if USER_ID not exists
But it won't show any information from the query results (e.g. username, address, phone, etc)
If the page is vulnerable to SQLi [blind], an attacker won't be able get info from the DB printed in the result page, but he might be able to infer it by asking yes/no questions.
I am using Spagobi version 3.6.0, Jaybird-2.2.2JDK_1.7 and Firebird 2.5 (x64). I set up a datasource and the testing is OK.
I set up a dataset and the preview shows the correct list of colunms, only there is no data. Access via some other SQL viewer shows the data.
The error message in the Catalina log is:
org.firebirdsql.jdbc.FBSQLException: The result set is closed
Does anybody have an idea what I did wrong?
After some testing the solution to your problem is to specify the connection property defaultHoldable=true in the connection URL of the datasource, so for example:
jdbc:firebirdsql://localhost/database?defaultHoldable=true
As commented earlier you also need to upgrade to Jaybird 2.2.7, otherwise you will be confronted with bugs JDBC-304 and/or JDBC-305.
I haven't checked the code of SpagoBI, but it looks like SpagoBI assumes that result sets are always holdable over commit and executes its queries using auto commit. It should either not use auto commit, or check the DatabaseMetaData.getResultSetHoldability() and/or Connection.getHoldability() and explicitly request holdable result sets.