DbQueryColumn is a class representing a column present in the DbQuery's SELECT, WHERE or ORDER BY clauses.

Properties

Name	Type	Description
query	DbQuery	The query this column is selected by
sql	String	The expression to be selected (left to the AS keyword in the SELECT clause)
alias	String	The name of this column in the resulting dataset (right to the AS keyword in the SELECT clause)
qName	String	Copy of alias, safely quoted for interpolation in SQL
desc	Boolean	If true and this column is included in the DbQuery's order list, the corresponding sql in the ORDER BY will be followed by the DESC keyword.

Constructor

const myColumn = new DbQueryColumn (myQuery, 'NOW()', 'time_stamp')

For DbRelation columns described in the DbModel, the DbColumn.toQueryColumn convenience method is provided.