Active Query builder is a component suite which gives your end-users the ability to create SQL queries containing unions and sub-queries via an intuitive visual interface. The product supports Oracle, SQL Server, Access, MySQL and other SQL dialects. Active Query Builder is a query builder component suite that allows your end-users to build complex SQL queries via an intuitive visual interface. It differs from other query builders by its powerful SQL parser that correctly handles SQL queries containing multiple nested joins and other fine points of SQL syntax. Another feature is the powerful graphical engine that allows you to build queries involving unions and sub-queries.