IP protocol used by MyDac TMyconnection changes from IPv4 to IPv6 (or vice versa) and database queries fail
Scenario My application obtains the public IP address of the user by running a small PHP script on the same server that hosts my database. I then programatically insert that IP address into the remote hosts table so that I can gain remote access to the
Firebird 5 released
Firebird 5 was released 2024-01-12. Now, when do we get an IBDAC update? ODS is compatible to FB4, but there are new SQLs, like partial indexes and "SKIP LOCKED". There are new backup options for parallel workers, which may be configured in TIBCBack
InvalidCastException with value types and logging applied to the DbContext
Hi, We are using Microsoft.EntityFrameworkCore 7.0.15 and Devart.Data.Oracle.EFCore 10.2.0.7. Some of our queries use value types in the where clause but don't work when we enable logging for the DbContext. I have a attached a small project which reproduces
C++ Builder 2010 Unable to connect to database
Hello, We are using C++ Builder 2010, Firebird 2.5.9 we are having some problems with mult-thread access with our current Firebird Driver (other driver) We are interested in testing you driver but we receive a strange exception after the trial info dialog
Remotely connect to xBase ODBC driver from an external service
Hi, I'm wanting to connect an ETL (Azure Data Factory) to a FoxPro database on an on-premise server. I see that some of your ODBC drivers provide connection options like port etc, but the xBase one doesn't. Does that mean that there's no way to connect
Compiler Issues with LiteDAC Component
In my C++ Builder XE 11.2 project, I placed a LiteConnection component and attempted to compile an APK for Android 32-bit. During the compilation process, an error occurred: [bccaarm Fatal Error] DBAccess.hpp(17): 'Winapi.Windows.hpp' file not found.
Error No Entity Framework Provider found for Devart.Data.SQLite
Hi! I maintain a .NET Framework 4.8 app that uses DevArt DotConnect for SQLite. It uses Entity Framework to talk to a database where application logs are stored. Anyway, starting about a year ago something changed in the app's config that's causing an
Devart.Data.Oracle.OracleException : ORA-00920: invalid relational operator
Hi Devart team, I am getting the error Devart.Data.Oracle.OracleException : ORA-00920: invalid relational operator when querying the database using a bool property in a where clause like: var students = _dbContext.Students.Where(s => s.IsActive).ToList();
ODAC TOraQuery cannot popup window to enter SQL query
My environment is: Delphi 10.2 and C++Builder 10.2 Update 3 Devart Oracle Data Access Components 11.1.3 While I add a TOraquery to a form, and then in Object Inspector I click on SQL trying to bring up the editor window. Delphi dies. What I can do is
Built-in dbExpress Driver problem
I use dbExpress Driver for InterBase and Firebird 6.1 Source code. and Delphi XE use DbxIdaDriverLoader and compile An error occurred [DCC Error] IBCError.pas(29): E2003 Undeclared identifier: 'ECRError' in unit IBCError; How to resolve it? thanks!
dotConnect MySQL Info
2 questions with the dotConnect for MySqL 1) does dotConnect for sql work with the square brackets in mySQL? The devArt MySQL Odbc driver handles the square brackets but it looks like the [] are throwing an error? Example select * from [Company] 2) using
dbExpress very slow on one computer
Hi All, Normally I have no problem with the speed of the dbExpress drivers. But I have one customer where the connection to the database (MSSQL) is very slow (more than 10 times slower than others). He has the same setup as others, so I cannot pin point
Migratig from FibPlus
Hi I have a FibDataSet with CachedUpdate activated. and this code: Trans := Consulta.Transaction; Trans.Active := true; Consulta.Open; Trans.Active := false; when I close the transaction, the DataSet state is dsBrowse and all the data are still in DataSet.
Multiple dataset problem
Hi, I use TMSStoredProc and SP has multiple datasets. Besides, SP has some business logic and use Cursor to handle the logic. I tested to insert the records into physical table instead of #temptable in SP. I found it doesn’t insert any records into physical
How to move to a new computer?
I need to move the QuickBooks ODBC driver to a new computer. What is the process to do that?
WooCommerce connection to the ODBC driver
I want to control the data on my WooCommerce site using Microsoft Access. I installed the OCDB driver and I don't understand how to proceed further. I guess I know how to connect Access to the driver, but I don't understand how to connect the driver to
Query taking much longer in Direct Mode than when using an Oracle client
Hello, Our product gives the user a choice of using either Direct Mode or using an Oracle client. A customer has reported that when using Direct Mode, a particular query is taking 17 minutes, and when using an Oracle client, it takes only 18 seconds.
Memory not released after closing TSmartQuery with LOBs
Hello, Regarding this issue, created about 1.5 years ago on the old forum: https://forums.devart.com/viewtopic.php?f=5&t=44418 Your latest answer is: We have reported it to Oracle but have not gotten an answer from them. Can you ask again? Have
Linq Connect Update Timeline
Is there a timeline for an update to LinqConnect 5.-0.151 to support the recent updates to visual studio? Thanks -Pete
How to determine which version of dotConnect for Oracle is being used?
Hello, let me first give you my context as succinctly as possible. Our .Net Framework application uses dotConnect for Oracle NuGet package 9.X.X. When I joined the team and started developing for the app, I realized that certain queries took extremely
[bug] auto-where by RefreshRecord (v8.0.0)
auto-where by refreshrecord works incorrectly with: cross join SELECT bdea.dbrid ba_op FROM bdea CROSS JOIN ab2 WHERE ba_ix = :ab_ix :ab_ix(WideString[3])='100' WHERE ( ba_ix = :ab_ix) AND cross.dbrid = :ba_op :ab_ix(WideString[3])='100' :ba_op(WideString[3])='136'
opened connection by an exception
In the TCustomPgDataSet.Execute(PgAccess) becomes TCRConnection.FAutoCommit(CRAccess) set to false and not reset after the exception in the RefreshRecord. Then the error dialog, through our THauptForm.ShowServerTimer a ConnectionCheck with "Select true,"
change SQLwait cursor when autorefresh
hi Some of the TMyQuery have Autorefresh enabled. When the autorefresh is executed the cursor changes automaticly to crSQLWait. Is it possible the changes this into the crDefault so the user does not sees the crSQLWait cursor. OR Is it better to use a
Wrong display/update of TIMESTAMP WITH TIMEZONE data in diect mode
For demo, PLS create a table CREATE TABLE TS_TEST ( ID NUMBER (9,0) NOT NULL, TS TIMESTAMP(6), TS_TZ TIMESTAMP(6) WITH TIME ZONE, TS_L_TZ TIMESTAMP(6) WITH LOCAL TIME ZONE ); ALTER TABLE TS_TEST ADD ( CONSTRAINT "_PK" PRIMARY KEY ( ID ) ); And insert
dbexpida.dll version 6.1.0 fro FirebirdSQL
Afert change dbexpida.dll 6.0.4.0 to 6.1.0.0 in some situation I get EListError in module dbexpida.dll at 0001ab0e List index out of bounds(4) This is raise in method function TCustomSQLDataSet.GetFieldData(FieldNo: Integer; Buffer: Pointer): Boolean;
ODAC Pooling
Hi, Greetings! I'm trying to use ODAC connection pool feature, but im having a hard time figuring out how it works. Is there any demo or sample project that shows how it's done? Thanks in advance Rogerio
Oracle Advanced Queuing - OracleQueue.Dequeue
OracleQueue.Dequeue only returns the first message. In my test I enqueue 20 messages, and only the first one gets dequeued. I have no idea why.
Possible OraClasses bug?
Hi, During a test, I've had a range check error throw up in OraClasses.pas. It was in version 12.2, but I've just updated now to 12.3 and I think the problem is the newer version as well. I am currently unable to reproduce the error, but I think it had
Adding an TActivityindicator when running long queries. What is the best way to implement?
Some of my queries with Unidaq (Locates, field lookups and updates) take a few seconds to implement. What is the best way to implement an activity indicator when these are initiated? Can I use events to kick off showing, displaying, updating, and eventually
Does DotConnect Universal also support Net 7 ?
Hi, I saw that with Build 134 DotConnect Support Net 7. Does this also includes DotConnect Universal ? I only found information for the individual Daztabases. Thanks and regards Uwe
Doesn DotConnect Universal support Net7
Hi, does DotConnect Universal already support Net 7. I get the following Error Message when I try to open a database: System.MissingMethodException: "Method not found: 'System.String System.AppDomainSetup.get_LicenseFile()'." I am using the SQLiteCrypt
Using INTEGER PRIMARY KEY as 64 bit identity
I am using LiteDac 5.0.1 with Delphi 2007 and I am trying to use an auto-incrementing primary key defined as INTEGER PRIMARY KEY. The field takes values much larger than MaxInt but when I try to read the data in with a tLiteQuery it thinks the field is
UniScript and specific SELECT script won't work
Hi, I use Uniscript with Interbase 7, and with this particular script, nothing append on the DB : SELECT GEN_ID( my_gen, MAX(id) - GEN_ID(my_gen, 0)) FROM my_table; (The generator my_gen should have taken the max value of my_table.ID). And no error were
TMSTable.post problem: Operation Aborted. How to get more detailed information ?
Hello, Using an TMSTable with 82 fields, and 1 keyfield (integer), I'm able to Insert, Delete and Edit, but when I execute Post, the operation fails with exception: Operation Aborted and no further information. If I delete the record and then Insert,
Issue with Inserting Current Time Using Now Function in Timestamp Column in Delphi 12 and UniDac 10.0.0
I have a problem with compiling in Delphi 12 with UniDAC 10.0.0. Everything works in Delphi 11 with UniDac 9.4.0. Database is Postgres. When I want to insert the current time into a table item that is of the timestamp type using the Now function, an error
PYODBC sample code for Devart & QuickBooks Online
I am just starting to work with Devart (moving from QODBC). I am using PYODBC with Python and QBO. I am looking for some sample code for queries particularly journal entries. Surely someone else besides me is doing this, but I am not able to find any
BLOB With VirutalQuery Oracle
Hi, I need to use VitrualQuery to transfert Tables, table with clob et blob, but if I done the folowing code. With Postgres at the end Table2.Memo is filled by with Oracle is Empty. If I execute 'INSERT INTO TABLE2 SELECT * FROM TABLE1' in sqlplus it
dbExpress 6.1.0 possible regression
Hello, After updating our Delphi 11.3 application from the 6.0.3 of dbExpress to 6.1.0 for Firebird (v. 4.0.4) a problem occurred: Sample code: Query.SQL.Text := 'select * from TableX order by KeyField'; Query.Open; Query.First; // not needed; only for
Delphi 12 components
Hello, Delphi 12 has been out for 3 days and I see that it is not possible to download SDAC components for this new version. When can I expect components for version 12 ? I'm a bit surprised that there are no components on the same day that Delphi comes
F2063: could not compile used unit 'MyAccess'
I'm using the new MyDAC 12.0 professioal in Delphi 12.0. I get this error. The same for the unit 'DbAccess'. This version of MyDAC in Delphi 11.3 works fine. Is something wrong with the paths? Incompatible .dcu ?
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