Query text syntax

The query text constitutes the instructions for executing the query.

The query text describes the following:

• infobase tables used as data sources for a query;
• table fields that should be processed by the query;
• grouping rules;
• results ordering;
• etc.

An instruction is written using the dedicated language that is referred to as a query language and consists of individual parts or sections, clauses, keywords, functions, arithmetical and logical operators, comments, constants and parameters.

The query language syntax is described using a set of rules.