1. A method comprising: accessing a database query statement, the database query statement being an executable instruction expressing an action to be performed with respect to a database; generating, using one or more processors, an abstract syntax tree (AST) corresponding to the database query statement, the AST being a data structure representing a syntactic structure of the database query statement; generating a domain model using the AST, the domain model describing elements of the database query statement and roles and relationships of each element; generating a graphical model of the database query statement using the domain model, the graphical model being a graphical representation of the structure of the database query statement; and causing presentation of the graphical model of the database query statement on a client device.
8. The method of claim 1 , wherein the generating of the domain model includes modifying the AST to include additional attributes.