DAC Team posts

Devart was pleased to participate in the annual online conference for Delphi developers – Coderage XII organized by the Embarcadero company and held on November 7-9, 2017.

During the session, we presented the solution how using ORM for Delphi – EntityDAC can simplify and speed-up the application development process. In our presentation, we used real samples, as well as other Devart products (UniDAC, dbForge Studio for Oracle) to clearly demonstrate this.

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The Devart company released UniDAC with support for Linux 64-bit platform. UniDAC makes application development and maintenance easier and simpler because the use of the Direct mode in a custom application does not require the installation of client libraries, additional drivers, etc. This helps to avoid the overhead when accessing a DBMS, hence increasing performance.

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Custom relational management is very important once you run a business. It helps to improve marketing strategy, sales and customer service. (more…)

Cloud-based CRM systems are becoming incredibly popular in these days. This trend is quite clear. The usage of cloud services does not require a deployment and costly specialized software domestic support, which ultimately reduces a company’s total expenses. (more…)

In this article, we will discuss how to access data using ODBC driver in Microsoft Excel. We will examine in detail the data retrieving process.
Cloud technologies develop rapidly, more and more data is stored in the cloud. (more…)

TVirtualDataSet is a virtual dataset that can be used as an intermediate between data stored in an application and data-aware controls used in forms. TVirtualDataSet behaves the same way as any other TDataSet descendant and, therefore, it is compatible with all data-aware controls. However, it does not store data in memory. Work with TVirtualDataSet is implemented by means of events occurring during data exchange between an application and controls. As a result, you can choose a variety of entities as a data storage source: arrays, lists, records, XML files, etc. (more…)

The article describes installation and configuration of Devart ODBC Driver for QuickBooks on Windows, as well as authorization and connection to a QuickBooks account, and provides a demo sample of retrieving QuickBooks account data using Microsoft SQL Server Management Studio.

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The VirtualQuery component allows executing SQL queries to sources that are not a database, but a TDataSet or any its descendant. It also allows you to connect to several data sources at a time and work with them using SQL queries as with a single data source. Thus, work in heterogeneous environment is implemented, when execution results of queries to different sources can be retrieved in a single data set. (more…)

One the major issues a developer encounters when using the SQLite DBMS in his applications is its performance issue.

Perhaps, a classic case everyone gets into when using SQLite for the first time is very slow execution of multiple INSERT/UPDATE/DELETE operations. Indeed, sequential executions of not even thousands, but hundreds of INSERTs into a table may take too long. (more…)

Data amount processed by modern databases grows steadily. In this regard, there is an acute problem – database performance. Insert, Update and Delete operations have to be performed as fast as possible. Therefore Devart provides several solutions to speed up processing of huge amounts of data. So, for example, insertion of a large portion of data to a DB is supported in the Loader. Unfortunately, Loader allows to insert data only – it can’t be used for updating and deleting data.

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