|ColumnSet||Specifies the attributes for which non-null values are returned from a query.|
|ConditionExpression||Contains a condition expression used to filter the results of the query.|
|FetchExpression||Contains a query expressed in FetchXML.|
|FilterExpression||Specifies complex condition and logical filter expressions used for filtering the results of the query.|
|LinkEntity||Specifies the links between multiple entity types used in creating complex queries.|
|OrderExpression||Sets the order in which the entity instances are returned from the query.|
|PagingInfo||Specifies a number of pages and a number of entity instances per page to return from the query.|
|QueryBase||Represents the abstract base class for constructing a query.|
|QueryByAttribute||Contains a query that is expressed as a set of attribute and value pairs.|
|QueryExpression||Contains a complex query expressed in a hierarchy of expressions.|
|ConditionOperator||Describes the type of comparison for two values (or expressions) in a condition expression.|
|JoinOperator||Contains the possible values for a join operator in a LinkEntity.|
|LogicalOperator||Contains the possible values for an operator in a FilterExpression.|
|OrderType||Contains the possible values for the order type in an OrderExpression.|
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