A query object, sometimes referred to as a query, query result, or record set, is a complex ColdFusion data type that represents data in a set of named columns, similar to the columns of a database table. The following ColdFusion tags can create query objects:

• cfquery
• cfdirectory
• cfhttp
• cfldap
• cfpop
• cfprocresult

In these tags, the name attribute specifies the query object's variable name. The QueryNew function also creates query objects.

When you assign a query to a new variable, ColdFusion does not copy the query object. Instead, both names point to the same record set data. For example, the following line creates a new variable, myQuery2, that references the same record set as the myQuery variable:

<cfset myQuery2 = myQuery>

If you make changes to data in myQuery, myQuery2 also shows those changes.

You reference query columns by specifying the query name, a period, and the column name; for example:

myQuery.Dept_ID

When you reference query columns inside tags, such as cfoutput and cfloop, in which you specify the query name in a tag attribute, you do not have to specify the query name.

You can access query columns as if they are one-dimensional arrays. For example, the following line assigns the contents of the Employee column in the second row of the myQuery query to the variable myVar:

<cfset myVar = myQuery.Employee[2]>