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Delphi / C++Builder
SQL Text Formatter
SQL Query Analyzer
FlySpeed SQL Query
A handy too to work with SQL queries and data with a friendly Visual Query Builder
.NET Property Reference
Sources on GitHub
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Active Query Builder support area
Guides and articles
Getting started with AQB
in WinForms and WPF
in Delphi and C++Builder
in ASP.NET Core SPA app
in ASP.NET Core MVC (Razor)
in Classic ASP.NET MVC (Razor)
in ASP.NET WebForms
Quick Start Guides for other environments and configurations ...
Answers to common questions
Tuning the look of Database Schema
Metadata loading and filtration (for .NET)
SQL query analysis API
Changing SQL queries by code
Localizing Active Query Builder
More about Active Query Builder for .NET...
More about Active Query Builder for Delphi, ActiveX and Java...
Active Query Builder for .NET 3.5 release notes
Active Query Builder for .NET 3 - ASP.NET Migration Guide
Active Query Builder for .NET 3.4 release notes
Active Query Builder for .NET 3.3 release notes
Active Query Builder for .NET 3.0: What's new?
Active Query Builder for .NET 3 - Migration Guide
What are the Syntax and Metadata providers for?
Customizing the Database Schema Tree structure
Defining friendly names for database objects and fields
How to export query results to Excel?
Working with the query parameters
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Zero-SQL Data Explorer
Java Edition setup questions
ActiveX Edition setup questions
Delphi and C++Builder setup questions
WinForms and WPF setup questions
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AQB for Blazor
Query Builder WPF, criteria and expression editor causing error.
Cannot drag/drop field to create a join
Article to describe how to configure a React App using AQB on separate IIS application server
Accounting for column alt names when applying joins via the UI
Failed query validation by use of postgreSQL string_agg() function
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Delphi, C++Builder (VCL Edition)
Different editions may provide different APIs. Knowing to which edition your question is related lets give the right answers and provide the right code samples.
Active Query Builder users: find the version number in the properties of referred AQB assemblies in your project, or check for it in the Start menu under the name of "Version" file shortcut.
Let us know the environment in which your problem could be reproduced: what syntax and metadata providers have you used, what is your database server version, database connection type and driver; project type, OS version, etc.