Query by field value comparisons

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You can create queries based on how one field's value compares to another using the comparison field operators. This is useful to filter work items based on:

  • Is the person who created the work item the same as or different than the person assigned to it, or who closed it
  • Which Tasks were closed before or after their Target Date.

Supported data types

You can use the comparison field operators—=[Field], <>[Field], >[Field], <[Field], >=[Field], <=[Field]—with the following field data types. The data type you select for the Field and the Value must match.

  • Boolean (supports =[Field], <>[Field]
  • Date/Time
  • Double, Integer
  • GUID
  • Identity
  • String (excluding Tags)


Some combinations of data type and comparison field operator might not make sense to use, such as Title >=[Field] or Assigned To <=[Field].

Useful filters

Filter for Include these query clauses
Work items closed by someone other than the person who created the work item
Created By <>[Field] Closed By
State = Closed
Tasks whose Original Estimate is less than Completed Work Original Estimate <=[field]> Completed Work
Closed tasks completed prior to their target date Target Date <=[field]> Closed Date
State = Closed

Fields that support field comparison

The following table provides an index to those fields that support field comparison queries.


Not all fields listed are supported for all projects or work item types. However, you can customize a process or work item type by adding custom fields which you can use for the purposes of queries and field comparisons. To learn more, see Add a custom field to a work item type (Inheritance process) or Add or modify a field (Online XML process).













SDK resources

To programmatically interact with queries, see Query for Bugs, Tasks, and Other Work Items.