ADQL Typographical Conventions and Symbols

ADQL reference topics use custom typographical conventions and symbols to describe the syntax for ADQL queries.

Convention	Name	Usage
BOLD	Bold typeface	Bold typeface indicates ADQL keywords and operators, such as SELECT, FROM, AND and so on.
field_name and numeric_field_name	N/A	The terms field_name and numeric_field_name represent field names that appear in your analytics data. Field names depend on the event type. See ADQL Data.
`Monospace` typeface	Monospace typeface	Function names, such as count are indicated by `monospace` typeface.
event_type	N/A	The term event_type represents the available event types collected from your applications. Valid values are: transactions logs browser requests mobile requests mobile crash reports analytics custom events synthetic sessions
Italic typeface	Italics	Italics represent variables or placeholders. You supply the actual value.
[ ]	Square brackets	Terms in square brackets are optional. Nested square brackets indicate that the term inside is optional and can only be included if the optional term in the outer square brackets is included.
\|	Pipe	The pipe character separates alternate items to indicate one of the items may be included. You can read it as "or" in a syntax statement.
{ }	Curly braces	Curly braces are used to group items to disambiguate the definition of items.
( )	Parentheses	Parentheses are used to indicate the order of operation in an expression.
...	Ellipsis	An ellipsis indicates the preceding term may be repeated.