246 results found
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Retrieving Query Results Row-By-Row
PostgreSQL 9.2 has a new feature that allows results sets to be returned row by row instead of the whole result set at once.
This is a huge improvement for larger result sets.
See here for more info:
http://www.postgresql.org/docs/9.2/static/libpq-single-row-mode.html14 votes -
More Features in TCRBatchmove - Events on errorr
Add Events in TCRBatchmove to react if an error occurs.
2 votes -
Add properties KeepAlive + KeepAliveInterval (maintain the connection)
The component should TUniConnection every 3000 ms (for example) to send to the server any single request (for example, "select 1 from dual"), to the gateway and the server is "seen" that the connection is active and the client is connected.
RUS:
Компонента TUniConnection должна, каждые 3000 мс (к примеру) отправлять на сервер какой-нибудь холостой запрос (к примеру, "select 1 from dual"), чтобы шлюз и сервер "видел", что соединение активно и клиент подключен.Сообщение на форуме: http://www.devart.com/ru/forums/viewtopic.php?p=2081#2081
69 votes -
Extract table metadata information
Extract a whole table metadata information, like ibx / IBExtractExtractObject.
It's useful for example replicate a table.22 votes -
Make DAC errorors more clear
When an exception is thrown by a DAC product during startup of a project - like some SQL code cant execute, then the error code wont show what form and what object created the object. If I have project with 20 forms and hundreds of MyQuerys the errr "IdObject does not exist" is not very helpfoul.
28 votes -
26 votes
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After append event
When working with DevExpress VCL Tools the Append and Insert are different, and no im forced to use Insert instead of Append in the CX grid because the append have no corresponding event in Unidac, i cant catch it. The insert and append behaves different in the CX grid.
1 vote -
Dbexpress Driver support compression for Firebird 3
Firebird over Internet is very slow, Firebird 3 solve this problem useing compress,please Implement Dbexpress Driver to support Firebird 3 compression
about firebird 3 compress :
http://www.firebirdnews.org/firebird-3-protocol-benchmark/15 votes -
16 votes
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Make it possible to combine the Sqlite3 source code and header files with LiteDAC in the same project
Simply add #ifndef SQLITE3H_ in e.g. LiteCall.hpp.
The location is around line 460:
//-- var, const, procedure ---------------------------------------------------define DACProductName L"LiteDAC"
define SQLiteDLLName L"sqlite3.dll"
ifndef SQLITE3H_
static const System::Int8 SQLITEOK = System::Int8(0x0);
static const System::Int8 SQLITEERROR = System::Int8(0x1);1 vote -
TCRGrid make style aware
Have the TCRGrid component display with the currently selected theme style
1 vote -
Support non-blocking queries for MySQL in MyDAC or UniDAC
As many DB applications support multiple threads, we could benefit from non blocking MySQL queries. Of course we know that MySQL's C connector does not currently support asynch queries; At least not documented.
21 votes -
Add support for xml, image and text fields.
I can make TVirtualTable.Assign( TMSQuery ), but xml and other blob fields are lost. A great pity!
9 votes -
Implement TStringField.Size restriction
DB table has column varchar(200), in application i want to restrict field size to 50 characters.
In ADO Components TStringField.size restrict string column size, but UniDAC, after open table, discard my TStringField.Size and set it to column size, that column has in DB.70 votes -
Add a way to turn off active sorting without losing the current sort order (ODAC lost this feature.)
ODAC has always allowed clearing IndexFieldNames without reverting to the original sort order. The ability to sort a dataset and then turn off active sorting is very useful (and necessary for editing a sorted dataset in a grid component.)
24 votes -
Using TVirtualTable replace with TClientDataSet
1.supports Aggregates
2.supports Data And Delta!
3.supports binary formatter data,like TClientDataSet!
4.supports json data!
5.supports SQL Memory.
6.exports updated SQL!
7.Supports Merge Delta Data,Reconcile Delta Data!
8.Every record have Single row number,it can use to locate record!
9.Supports DataSetField!
10.Supports SetOptionalParam/GetOptionalParam347 votes -
Improve the unified sql structure and macros
Extend the actual unified sql structure and macros to stored procedures, functions, views etc. to be able to create applications truly database independent.
more info at
http://www.devart.com/forums/viewtopic.php?t=15057&highlight=7 votes -
Extension of TUniDump. - Backup and restore of one into another DB system.
Extension of TUniDump.
- Backup and restore of one into another DB system. For example, MS SQL Server to Oracle. Including BLOB fields.
- Possibility to select the tables to be restored.20 votes -
TMSTableData Assign function not copy the data
The TMSTableData Component Assign function only copy the source table fields, but not copy the source data! I strongly recommend that can copy the all data like the TMSTable component.
for example:
self.MSTable1.First;
self.MSTableData1.Close;
self.MSTableData1.FieldDefs.Clear();
self.MSTableData1.Assign(self.MSTable1);
self.MSTableData1.Active:= true;The MSTableData1 not copy the MSTable1 data , but it copy the fields
2 votes -
4 votes
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