internalcalc Necessary facilities
I'm using "unidac" comps for "delphi" with "tclientdataset" I want to use "unidac" comps without "tclientdataset" before I was use it with "tclientdataset" and use internalcalc field as in-mem field I was change it whenever i want "Devart" add internalcalc
Assertion failure
Welcome, I am using delphi 10.4 Update 2. with UNIDAC 9.4.0. The component is used in a multi-threaded service. Due to load balancing, this service is running on multiple machines. On one of the application servers (only one), the following error message
ODAC Oracle RAC SCAN direct mode support.
Hello, I was curious of Oracle SCAN name is supported with ODAC and using direct mode. We have an application we are trying to connect to an Oracle cluster using SCAN and it works fine with the Oracle client but not using the SCAN name with direct mode.
Event when a connection is taken or put back into the pool
Hi, Is there an event when a connection is made or reset in the pool ? Thank you
Query - ParamByName
Hello. RAD 11.3 / Unidac 9.4.0 / Windows 10 Pro version 22H2 I have problem with ParamByName in Query component. Field in Table is defined as CHAR(1) SQL: Select * from <table> where <field> LIKE '%A%' If the code is Q.SQL.Add('SELECT * from <table> where
Connecting Postgresql with certificate
Hello We need to connect to the Postgresql database with a digital certificate, how do we do it?
UniDac ilink32 warning
Hello. RAD 10.4.2 / Unidac 9.4.0 / Windows 10 Pro version 22H2 I am getting the warning below: [ilink32 Warning] Warning: Duplicate string: ID 102; File C:\PROGRAM FILES (X86)\DEVART\UNIDAC FOR RAD STUDIO 10.4\LIB\WIN32\DBACCESS.RES string kept: "Password";
Parameter.AsString for an integer field results in a "record not found" error
Hi, With Delphi 5 + V6.11.23 of SDAC components + request : select * from TABLE where KEYFIELD = :Key + ParamByName('Key').AsString := '123' with Key integer field evrything works fine with SQL Server 2016 with SQL Server 2008 (or 2012, not sure), error
Closing UniDac VERY slow
I have been using UniDac for years, currently in Delphi XE10.3.2 with Firebird 3 and for one particular UniDac query I have come up with a (to me) strange problem. It is taking about 8 seconds to close. The query is fairly simple (basically just a SELECT
type mismatch for field ‘xxx’ expecting string actual widestring
Hi all, I'm using SDAC 10.3 on Delphi 11.3: I got the above mentioned type mismatch, as I had created my SQL tables with NVarChar, and had persistent fields in my MSTables on the form. I found a description for the problem and a solution on this forum,
How and where do I set UseUnicode in sdac 10.3
Hi All, I have asked this question in a previous topic, but with another angle and more complex description. The simple question is: How and where do I set UseUnicode to False. I'm using SDAC 10.3 in Delphi 11.3 Regards Soren
Automatic choice of provider
Hello, We're wondering about the algorithm that chooses the provider to use to connect to a SQL Server instance when the Provider property is set to prAuto. According to the documentation (and the UniDac's source code), the Native Client is prefered over
NTDLL.DLL error when calling mstable.open, from an inherited form
Hi All, Using SDAC 10.3 and Delphi 11.3: I have a form, with 2 MsTable, which it has inherited from a standard form. On the standard, the Connection is pointing to a DB module with the MSConnection, but no tablename. In the inherited form, I set the tablename
Error during Installation of TCRSSLIOHandler for macOs
Hi, Delphi 11.2 / Windows 11 64bit I installed MyDac 11.3.0 and SecureBridge 10.3.1 with success for macOS and Win32 platforms. I'm trying to install the TCRSSH[L]IOHandler from ...\Documents\Devart\MyDAC for RAD Studio 11\Demos\TechnologySpecific\SecureBridge.
UniDAC object was open
I am migrating a project from Delphi XE with UniDAC 4.5.10 to Delphi Alexandria with UniDAC 9.2.1 and I am getting a few errors on Query.Open. These are the errors and I don’t have them in the old project. 1. illegal constraint expression 2. object was
How to Renew my dotconnect Oracle
How do I renew my licenses key of oracle dotconnect because I am facing the following error. Error : LicenseException: Feature is not supported. This error is thrown by Devart .NET Standard assemblies if license key validation fails. Possible reasons:
Missing Methods in Toolbox
Hello, I'm having an error when trying to access the ZohoConnection with the dotConnect, it hits me with a missing method error and im a little lost on where to go from there.
Export DataSet To JSON
Tell me, is it possible to export the dataset to JSON format? If not, is there a plan to do so?
ODBC for DBASE
hi, i dont see an option to imply a decryption key, dbf databases are encrypted, is here a function to be able to access them ? Thanks a lot.
Heterogeneous queries
Hello, Does it exists a way to do Heterogeneous queries, off course on Firebird Dabases + TMemDataSet (= really powerful), like it is possible to do it with Firedac ? https://docwiki.embarcadero.com/RADStudio/Rio/en/Local_SQL_(FireDAC)
Lots of issues updating to version 6.1.134 of dotConnect SQLite Free in the Visual Studio 2022 community.
When upgrading to version 6.1.134 of dotConnect SQLite Free the Visual Studio 2022 community app stops working. Is it possible to roll back dotConnect version 6.0 for Microsoft Visual Studio 2022?
Error when writing to database
Driver does not support this function State:IM001, Native:0.Origin: [Microsoft][ODBC Driver Manager] even though we purchased and applied the license, when we attempt to use it to write to our database it connects perfectly but we keep getting this error
Virtual table transfer to another
Hello, When I use the code below to transfer a table to another table, all fields with non-English names appear as question marks. What should I do to keep the field names as they are? Var MM : TMemoryStream; T1,T2 : TVirtualTable; Begin MM := TMemoryStream.Create;
DotConnect for Oracle express edition version 9.14 cause serious memory leak!
I have this code to open Oracle connection: private OracleConnection _OpenDBConn() { bool successed = false; OracleConnection conn = new OracleConnection(ConnectString) { AutoCommit = false }; try { conn.Open(); successed = true; return conn; } finally
Integer[] value cannot be inserted into a PostgreSql database with LinqConnect
Hello, We have a column with datatype integer[] in one of our database tables. Using repository pattern, when we run this code: OurTableEntity entity = new OurTableEntity(); entity.OurColumn = "{-1,-1,-1,-1,-1}"; ourTableRepository.Add(entity); unitOfWork.Save();
ODBC PostgreSQL: Data Source Error "Object not found"
Hi Community We use the DevArt ODBC PostgreSQL Connection on a daily base in order to connect Microsoft Excel directly to our Postgre-DB. All has been working fine until a few days ago. If I try to use an existing connection or create a new one, regardless
MsSQL New transaction is not allowed because there are other threads running in the session
Dears, we are trying to move large project from Delphi 11.2 ADO to Delphi 11.3 UniDAC. We use Firebird and MsSQL. We use main DbConnection and separate DbConnections for specific actions. We open forms with main DbConnection and we often use SpecificOptions.Values[FETCH_ALL]
DevArt SSIS Components for Salesforce - Support of Later Salesforce API Versions
Hi, It looks like the latest supported version of the Salesforce API is version 52. Is there a way to get the DevArt SSIS Components for Salesforce to connect using a more recent/higher API version number, as I need my SSIS package to have access to some
ORA-01745: invalid host/bind variable name when parameters are reused in the linq query version 10.0.1.134.7 & EF7
Using 10.0.1.134.7 & EF7 When in .net the same variable is used more than once in a linq query, the bind variable in the query is rendered the second with 2 time ':' thus ::p__query_varname eg. excerpt: qry = qry.Where(z => z.DidoDocDosVersies.Where(y
dotConnect for Oracle and Entity Framework guide
Hello, I would like you to guide me about dotConnect for Oracle and Entity Framework configurations for the project I described with the following keywords. This help can be a sample project already exists, a post explaining the configuration, or a help
How to get the MySQL table structure
I am developing a MySQL database table structure synchronization function. The client will request the structure of the specified table on the server and receive it through the Json string. Then the client will compare whether the local table structure
How to setup dedicated server in ODAC direct mode
Hello, we have implemented the use of 'direct mode' in our applications with ODAC, which is very useful to us. However, we would like to know what the equivalent of 'Dedicated Server' TNS connection type would be in ODAC direct mode
Save as different framework model?
As I requested a year ago, the reason I bought this was to migrate to EF from Telerik but my models are significant in size. I just need the basic relations in order for me to migrate since they list in the hundreds if not thousands in my models as the
Arabic language
Hey devart The ODBC you present is very useful but when I'm useing it on microsoft access I found that arabic language apears as question marks like "حسين" apears "؟؟؟؟" so how can I make your ODBC support arabic language Thank you
Use Devart ODBC to retrieve and store Quickbooks access token
Hello, Is it possible to retrieve the access token that the ODBC connection uses? I was thinking I could use SQL Server Agent or other service to retrieve the access token and create 1x1 table with its value. Thank You for the help!
Access Violation - in Delphi 11 UP3 - after installing UNIDAC 10.4
Hello, after installing the latest UNIDAC version I am getting Access Violations when I try to install other components. I also have those problems within the RAD Studio when I click e.g. into the project tree - after de-installing UNIDAC - problems are
c++ builder compile error after unidac upgrade
Using c++ builder xe10.3.2, vcl win32 bits app. After update from unidac 9.2.1 to unidac 9.4.0 I got a compile error in standard includes: [bcc32 Error] ws2tcpip.h(604): E2015 Ambiguity between 'std::size_t' and 'Litecalluni::size_t' Any idea why?
Firebird 5
Hi, I would like to prepare/test for Firebird 5.0. When is a driver expected +/- ? Kind regards, Filip
SSIS Components for MySql - SSL CA Cert - How To Use?
Hello, we have a MySql Database that we'd like to connect to. The database asks us to activate the following property: require_secure_transport=ON Where can this property be set? Also, which format is requested in the "SSL CA Cert" option in the manager
[DEVART][ODBC][PostreSQL]Trial period is expired
hi, last year i tried devart odbc driver for postresql on a server with windows2012 R2, it was for a POC with an instance postressql for test. now i want to industialise solution and before buy devart odbc driver, i want to try access on the same but
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