Architecture
AQT is a Windows application that uses ODBC to access the data, but is aware of the catalog structures of most common databases. This sets it apart from most software tools that use ODBC. The ODBC catalog is very slow on large systems, but AQT directly queries the catalog meta data of well known data base management systems, which makes it very fast for exploring the data structures of enterprise size data bases.
Catalog awareness is accomplished by using configuration files for each flavor of DBMS to define the queries to run against the data base catalog meta data. There are also separate configuration files for the administration component.
Data Base Management Systems of which AQT is aware of the catalog structure include IBM DB2, Oracle, Microsoft SQL Server, Postgres, MySQL, Sybase, and Informix.
Read more about this topic: Advanced Query Tool
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