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June 17, 2023

What You Need to Know About RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295


- Features: What are the main features of Data Abstract for Delphi Server Edition? - Benefits: How can Data Abstract help you build fast, secure, and reliable database applications? - Requirements: What do you need to install and use Data Abstract for Delphi Server Edition? - Pricing: How much does Data Abstract for Delphi Server Edition cost and what are the licensing options? - Conclusion: A summary of the main points and a call to action. H2: Introduction - What is Data Abstract and why use it? - What is Delphi and why use it? - What is RemObjects Software and what are their other products? H2: Features - Multi-tier architecture: How does Data Abstract use a multi-tier approach to data access and what are the advantages? - Schema model: How does Data Abstract abstract the implementation details of your physical database from client applications and what are the benefits? - Unified data access API: How does Data Abstract provide a consistent and easy way to access data from different database types and platforms? - DA SQL: How does Data Abstract allow you to write SQL statements client-side without compromising data security and integrity? - Briefcase support: How does Data Abstract enable you to work with data offline and synchronize changes later? H2: Benefits - Performance: How does Data Abstract improve the speed and efficiency of your database applications? - Security: How does Data Abstract protect your data from unauthorized access and modification? - Reliability: How does Data Abstract ensure data consistency and quality across your applications? - Scalability: How does Data Abstract support the growth and expansion of your applications and data? - Productivity: How does Data Abstract save you time and effort in developing and maintaining your database applications? H2: Requirements - Hardware requirements: What are the minimum and recommended hardware specifications for running Data Abstract for Delphi Server Edition? - Software requirements: What are the supported operating systems, Delphi versions, database types, and drivers for using Data Abstract for Delphi Server Edition? - Installation steps: How do you install Data Abstract for Delphi Server Edition on your machine? H2: Pricing - Pricing plans: What are the different pricing plans for Data Abstract for Delphi Server Edition and what do they include? - Licensing options: What are the different licensing options for Data Abstract for Delphi Server Edition and what are their terms and conditions? - Free trial: How can you try Data Abstract for Delphi Server Edition for free before buying it? H2: Conclusion - Summary of the main points: What are the key takeaways from this article? - Call to action: What do you want the reader to do next after reading this article? Table 2: Article with HTML formatting RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295: A Review




If you are looking for a framework that can help you build fast, secure, and reliable database applications using Delphi, you might want to check out RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295. This is a powerful and flexible tool that uses a multi-tier approach to data access, allowing you to implement business logic, access rights, and data consistency on your server, without exposing your database directly to the network. It also lets you abstract the implementation details of your physical database from client applications, using a unified data access API that supports almost all modern database types. In this article, we will review the main features, benefits, requirements, pricing, and licensing options of RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295.




RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295



Introduction




What is Data Abstract and why use it?


Data Abstract is an industry-leading framework for building database applications using the well-established "multi-tier" data access approach. It allows you to separate your application logic into three layers:


  • The client layer, which contains the user interface and user interaction logic.



  • The server layer, which contains the business logic, data access rights, and data validation logic.



  • The database layer, which contains the physical database and its tables, views, and stored procedures.



By using this approach, you can achieve several benefits, such as:


  • Improved performance, as you can reduce the network traffic and optimize the data transfer between the client and the server.



  • Enhanced security, as you can protect your database from direct access and enforce data access rights and encryption on the server.



  • Increased reliability, as you can ensure data consistency and quality across your applications and handle errors and exceptions on the server.



  • Greater scalability, as you can support more clients and data sources without affecting the performance or stability of your applications.



  • Higher productivity, as you can reuse your business logic and data access code across different platforms and devices.



What is Delphi and why use it?


Delphi is a modern and powerful programming language and integrated development environment (IDE) that allows you to create native applications for Windows, macOS, Linux, iOS, Android, and web. It is based on Object Pascal, a language that combines the elegance and readability of Pascal with the power and flexibility of object-oriented programming. Delphi is known for its fast compilation, high performance, rich libraries, visual design tools, and cross-platform support. Delphi is widely used by developers who want to create high-quality applications with less code and faster time to market.


What is RemObjects Software and what are their other products?


RemObjects Software is a software company that specializes in developing tools and frameworks for cross-platform application development. Their products include:


  • Data Abstract: A multi-tier data access framework that supports Delphi, C#, Java, Swift, JavaScript, and more.



  • Remoting SDK: A framework for building distributed applications using remote procedure calls (RPC) over various protocols such as HTTP, TCP/IP, WebSocket, etc.



  • Elements: A compiler toolchain that allows you to use one language (Oxygene, C#, Swift, Java, or Go) to target multiple platforms (Windows, macOS, Linux, iOS, Android, web).



  • Hydra: A plugin framework that allows you to mix .NET and Delphi code in the same application or library.



Features




In this section, we will review some of the main features of RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295.


Multi-tier architecture




Data Abstract uses a multi-tier architecture to separate the data access logic from the client applications. This means that you can implement your business logic, data access rights, data validation rules, etc. on your server application using Delphi code. Your server application will then communicate with your physical database using native drivers or Data Abstract's own unified data access API. Your client applications will communicate with your server application using Data Abstract's client libraries or Remoting SDK's RPC mechanism. Data Abstract supports various communication protocols such as HTTP/HTTPS, TCP/IP, WebSocket, Named Pipes, etc. You can also use Data Abstract's own binary protocol (Bin2) or JSON-based protocol (JSON) for data transfer.


The advantages of using a multi-tier architecture are:


  • You can protect your database from direct access by unauthorized users or malicious attacks.



  • You can enforce data access rights and permissions on the server side based on user roles or other criteria.



  • You can implement business logic and data validation rules on the server side without duplicating them on the client side.



  • You can optimize the data transfer between the client and the server by applying compression, encryption, filtering, delta updates, etc.



  • You can support multiple clients and platforms without changing your server code or database schema.



Schema model




Data Abstract uses a schema model to abstract the implementation details of your physical database from your client applications. A schema is a logical representation of your database structure that defines the tables, fields, relations, and expressions that you want to expose to your client applications. You can create and edit your schema using Data Abstract's Schema Modeler tool, which is a graphical user interface that allows you to drag and drop tables and fields from your database, or create them manually. You can also define custom SQL statements, stored procedures, calculated fields, lookup fields, etc. in your schema.


The benefits of using a schema model are:


  • You can hide the complexity and details of your physical database from your client applications, making them more portable and maintainable.



  • You can customize the data that you want to expose to your client applications, without modifying your database schema or code.



  • You can use different databases or data sources for different tables or fields in your schema, without affecting your client applications.



  • You can use Data Abstract's unified data access API to access data from different database types and platforms using the same code.



Unified data access API




Data Abstract provides a unified data access API that allows you to access data from different database types and platforms using the same code. Data Abstract supports almost all modern database types, such as Microsoft SQL Server, Oracle, MySQL, PostgreSQL, SQLite, Firebird, InterBase, MongoDB, etc. Data Abstract also supports various cloud-based data sources, such as Amazon Web Services (AWS), Google Cloud Platform (GCP), Microsoft Azure, etc. Data Abstract uses native drivers or third-party libraries to connect to these databases and data sources. You can also use Data Abstract's own Relativity Server as a data source, which is a lightweight and scalable server application that hosts your schemas and provides data access services.


The advantages of using a unified data access API are:


  • You can write the same code to access data from different databases and platforms, without worrying about the implementation details or differences.



  • You can switch between different databases or platforms easily, without changing your code or schema.



  • You can use Data Abstract's DA SQL language to write SQL statements client-side, without compromising data security or integrity.



  • You can use Data Abstract's LINQ support to write queries using the familiar LINQ syntax in Delphi.



DA SQL




DA SQL is a special SQL dialect that Data Abstract supports for writing SQL statements client-side. DA SQL allows you to write queries against your schema model, rather than your physical database. This means that you can use the same SQL syntax for different database types and platforms, without worrying about the implementation details or differences. DA SQL also allows you to write queries that span multiple tables or databases, without using joins or subqueries. DA SQL also supports various functions and operators that are not available in standard SQL, such as LIKE, IN, BETWEEN, etc.


The benefits of using DA SQL are:


  • You can write complex queries client-side, without affecting the performance or security of your server or database.



  • You can write queries that are portable and maintainable across different databases and platforms.



  • You can write queries that are easy to read and understand, using the logical names and expressions defined in your schema model.



Briefcase support




Briefcase support is a feature that Data Abstract provides for working with data offline and synchronizing changes later. A briefcase is a file that contains a snapshot of the data that you want to work with offline. You can create a briefcase using Data Abstract's client libraries or Schema Modeler tool. You can then load the briefcase into your client application and work with the data as if it were online. You can modify the data, add new records, delete records, etc. When you are ready to synchronize your changes with the server or database, you can use Data Abstract's delta mechanism to send only the changes made since the last synchronization. Data Abstract will then apply the changes on the server side and resolve any conflicts or errors.


The advantages of using briefcase support are:


  • You can work with data offline without losing functionality or performance.



  • You can reduce the network traffic and bandwidth usage by sending only the changes made offline.



  • You can ensure data consistency and quality by using Data Abstract's delta mechanism and conflict resolution logic.



Benefits




In this section, we will review some of the main benefits of using RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295.


Performance




Data Abstract improves the performance of your database applications by reducing the network traffic and optimizing the data transfer between the client and the server. Data Abstract uses various techniques to achieve this, such as:


  • Compression: Data Abstract compresses the data before sending it over the network, using different compression algorithms such as ZLib, GZip, etc.



  • Encryption: Data Abstract encrypts the data before sending it over the network, using different encryption algorithms such as AES, Blowfish, etc.



  • Filtering: Data Abstract allows you to filter the data on the server side, based on user roles, parameters, or other criteria.



  • Delta updates: Data Abstract sends only the changes made to the data since the last synchronization, rather than sending the whole data set.



  • Caching: Data Abstract caches the data on the client side, reducing the need to request the same data from the server repeatedly.



Security




Data Abstract protects your data from unauthorized access and modification by using a multi-tier architecture and various security mechanisms. Data Abstract ensures that:


  • Your database is not exposed directly to the network, but only to your server application.



  • Your server application enforces data access rights and permissions on the server side, based on user roles or other criteria.



  • Your server application validates and sanitizes the data before sending it to or receiving it from the database.



  • Your client application communicates with your server application using secure protocols such as HTTPS, SSL/TLS, etc.



  • Your client application encrypts and decrypts the data before sending it or receiving it from the server.



  • Your client application does not store any sensitive data on the device, but only in memory or in encrypted briefcases.



Reliability




Data Abstract ensures data consistency and quality across your applications by using a schema model and a delta mechanism. Data Abstract guarantees that:


  • Your schema model defines the structure and rules of your data, regardless of your physical database or platform.



  • Your schema model validates and formats the data according to your specifications, such as data types, constraints, expressions, etc.



  • Your schema model handles errors and exceptions gracefully, without crashing your applications or corrupting your data.



  • Your delta mechanism tracks and applies the changes made to the data offline or online, without losing or duplicating any data.



  • Your delta mechanism resolves any conflicts or errors that may arise during synchronization, using predefined or custom logic.



Scalability




Data Abstract supports the growth and expansion of your applications and data by using a multi-tier architecture and a schema model. Data Abstract enables you to:


  • Add more clients and platforms without affecting your server code or database schema.



  • Add more servers and databases without affecting your client code or schema model.



  • Add more tables and fields without affecting your existing applications or queries.



  • Add more features and functionality without affecting your existing performance or security.



Productivity




Data Abstract saves you time and effort in developing and maintaining your database applications by using a unified data access API and various tools. Data Abstract helps you to:


  • Write less code to access data from different databases and platforms, using a consistent and easy API.



  • Write queries client-side using DA SQL or LINQ, without compromising data security or integrity.



  • Create and edit schemas graphically using Schema Modeler, without writing any SQL code.



  • Work with data offline using briefcases, without writing any synchronization code.



  • Reuse your business logic and data access code across different platforms and devices, without rewriting any code.



Requirements


In this section, we will review the hardware and software requirements for installing and using RemObjects Data Abstract for Delphi Server Edition v9.2.101.1295.


Hardware requirements




The minimum and recommended hardware specifications for running Data Abstract for Delphi Server Edition are as follows:


Component


Minimum


Recommended


CPU


1 GHz or faster processor


2 GHz or faster processor


RAM


512 MB or more


2 GB or more


Disk space


200 MB or more


500 MB or more


Network


Broadband Internet connection


Broadband Internet connection


Software requirements




The supported operating systems, Delphi versions, database types, and drivers for using Data Abstract for Delphi Server Edition are as follows:


Operating systems




Data Abstract for Delphi Server Edition supports the following operating systems:


  • Windows 7 or later (32-bit or 64-bit)



  • Windows Server 2008 R2 or later (32-bit or 64-bit)



  • Linux (32-bit or 64-bit) with Wine 1.6 or later



  • macOS 10.9 or later (64-bit) with Wine 1.6 or later



Delphi versions




Data Abstract for Delphi Server Edition supports the following Delphi versions:


  • Delphi 7 (32-bit)



  • Delphi 2007 (32-bit)



  • Delphi 2009 (32-bit)



  • Delphi 2010 (32-bit)



  • Delphi XE (32-bit)



  • Delphi XE2 (32-bit or 64-bit)



  • Delphi XE3 (32-bit or 64-bit)



  • Delphi XE4 (32-bit or 64-bit)



  • Delphi XE5 (32-bit or 64-bit)



  • Delphi XE6 (32-bit or 64-bit)



  • Delphi XE7 (32-bit or 64-bit)



  • Delphi XE8 (32-bit or 64-bit)



  • Delphi 10 Seattle (32-bit or 64-bit)



  • Delphi 10.1 Berlin (32-bit or 64-bit)



  • Delphi 10.2 Tokyo (32-bit or 64-bit)



  • Delphi 10.3 Rio (32-bit or 64-bit)

  • Delphi 10.4 Sydney (32-bit or 64-bit)



Database types




Data Abstract for Delphi Server Edition supports the following database types:


  • Microsoft SQL Server (2000 or later)



  • Oracle (8i or later)



  • MySQL (4.0 or later)



  • PostgreSQL (7.3 or later)



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