QueryExpression Constructors Fields Properties ColumnSet Criteria DataSource DeserializationDepthLimit Distinct EntityName ForceSeek LinkEntities NoLock Orders PageInfo QueryHints SerializationDepthLimit SubQueryExpression TopCount Methods QueryExpressionVisitorBase ...
public: property bool Distinct { bool get(); void set(bool value); }; Property Value Boolean true if the results of the query should only contain unique values.; otherwise, false. Attributes DataMemberAttribute Remarks When the Distinct property ist true, the results returned don't include...
以下示例说明了如何使用 QueryExpression 类。复制 // Query using ConditionExpression and FilterExpressionConditionExpression condition1 = new ConditionExpression();condition1.AttributeName = "lastname";condition1.Operator = ConditionOperator.Equal;condition1.Values.Add("Brown"); FilterExpression filter1 = ...
"").replace("}", "");3varpledgeId = Xrm.Page.getAttribute("cus_pledge_no").getValue()[0].id.replace("{", "").replace("}", "");45varq =newSdk.Query.QueryExpression("account");6q.setDistinct(true);7q.setColumnSet("cus_donor_no");89//添加主表條件10varqueryFilter ...
Expression VisitDistinct (Microsoft.EntityFrameworkCore.Query.SqlExpressions.DistinctExpression distinctExpression); 参数 distinctExpression DistinctExpression 要访问的表达式。 返回 Expression 如果修改了该表达式或任何子表达式,则为修改后的表达式;否则返回原始表达式。 适用于 产品版本 Entity Framework Core 5.0, ...
在Microsoft Dynamics CRM 2015 和 Microsoft Dynamics CRM Online 中,您可以使用QueryExpression類別來建置複雜的查詢搭配使用IOrganizationService.RetrieveMultiple方法或RetrieveMultipleRequest訊息。 您可以使用ConditionExpression、ColumnSet和FilterExpression類別,將查詢參數設為QueryExpression。
fromdjango.db.modelsimportAggregateclassCount(Aggregate):# supports COUNT(distinct field)function='COUNT'template='%(function)s(%(distinct)s%(expressions)s)'def__init__(self,expression,distinct=False,**extra):super(Count,self).__init__(expression,distinct='DISTINCT 'ifdistinctelse'',output_field...
function = 'SUM' template = '%(function)s(%(all_values)s%(expressions)s)' allow_distinct = False def __init__(self, expression, all_values=False, **extra): super().__init__( expression, all_values='ALL ' if all_values else '', **extra ) Value() expressions¶ class Value...
voidDoQueryExpressionToFetchXmlConversion(){// Build a query expression that we will turn into FetchXML.varqueryExpression =newQueryExpression() { Distinct =false, EntityName = Contact.EntityLogicalName, ColumnSet =newColumnSet("fullname","address1_telephone1"), LinkEntities = {newLinkEntity { ...
[ALL] <query_term> | <query_expression> EXCEPT [ALL] <query_term> <query_term> ::= <query_primary> | <query_term> INTERSECT [ALL] <query_primary> <query_primary> ::= <query_spec> | (<query_expression>) <query_spec> ::= SELECT [<distinct_spec>] [<top_spec>] ,... <top...