News

Logical to Physical Data Modeling

Author: Cosmin G6814 In the last article we learned how to create a data model from scratch using ER/Studio Data Architect. In part II we will explore about how to convert a Logical Data Model into a Physical Data Model. Section 1: Generating a Physical Data Model Task 1 1) Launch ER/Studio Data Architect 2) Open the last created model 3) We shall now be generating a Physical Model to an…
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Delphi

Simple Database and Data access in Delphi XE5 for iOS and Android

Author: Blaise Þ With the release of Delphi XE5 for iOS and Android developers now have several options for connecting to databases and data both on the devices themselves as well as via our DataSnap multi-tier technology; REST application services, REST, SOAP, and XML (TXMLDocument).  You can directly use SQLite, InterBase IBLite/IBToGo in your iOS and Android applications via the FireDAC…
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C++

FireMonkey Styles for Blinking Button

Author: Eusebio M40205 The problem appeared when discussing “Scalability of enterprise DBMS-targeted systems” (in English on massive demand in comments) with Dmitriy Kouzmenko, Russian expert in InterBase since its origin. Then this occasional topic called more…
Delphi

SQLDA missing or incorrect version, or incorrect number/type of variables

Author: Craig Stuntz The error in the title comes from InterBase. Actually, the full error is: [DataDirect][ODBC InterBase driver][InterBase]Dynamic SQL Error, SQL error code = -804, SQLDA missing or incorrect version, or incorrect number/type of variables. I’ve seen this error before when the wrong InterBase client (gds32.dll) version was loaded by the application, or when the wrong number…
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