join "T2" iu on o."NodePath" like iu."NodePath" || '%'where iu."Id" = '123456'from o in context.InspectUnitjoin iu in context.InspectUnit on o.NodePath.StartsWith(iu.NodePath)where iu.Id == "123456"orderby o.Nameselect o这样写linq会报错表示on条件必须使用equals连接...
有了这两个查询,再通过子句join t in teams on r.Year equals t.Year,根据赛手获得冠军的年份和制造商获得冠军的年份进行连接。 varracersAndTeams =fromrinracersjointinteamsonr.Yearequalst.Year //和SQL的形式完全一样select new{ Year = r.Year, Racer = r.Name, Team = t.Name }; //select 子句...
有了这两个查询,再通过子句join t in teams on r.Year equals t.Year,根据赛手获得冠军的年份和制造商获得冠军的年份进行连接。 varracersAndTeams =fromrinracersjointinteamsonr.Yearequalst.Year //和SQL的形式完全一样select new{ Year = r.Year, Racer = r.Name, Team = t.Name }; //select 子句...
var query = from table1 in context.Table1 join table2 in context.Table2 on table1.Column like table2.Column select new { // 选择需要的字段 }; 在上述代码中,"Table1"和"Table2"分别表示两个具有like on条件的表,"Column"表示需要进行模糊匹配的字段。 执行查询并获取结果: 代码语言:txt 复制 va...
LINQ之Join(from join on )与GroupJoin(from join on into)将两个集合进行关联与分组 代码1如下 void Main() { Person[] persons = new Person[] { new Person{ CityID = 1, Name = "ABC" }, new Person{ CityID = 1, Name = "EFG" }, ...
LINQ 标准的查询操作符 连接 join in on equals 使用join 子句可以根据特定的条件合并两个数据源,但之前要获得两个要连接的列表。 在一级方程式比 赛中,设有赛手冠军和制造商冠军。 赛手从GetChampions()方法中返回,制造商从GetConstructorChampions() 方法中返回。
LINQ 标准的查询操作符 连接 join in on equals 使用join 子句可以根据特定的条件合并两个数据源,但之前要获得两个要连接的列表。 在一级方程式比 赛中,设有赛手冠军和制造商冠军。 赛手从GetChampions()方法中返回,制造商从GetConstructorChampions() 方法中返回。
I have two tables, something like this: [Table1] Field1 (int) [Table2] Field2 (nvarchar[n]) I want to perform a join on these tables where the Field1 (converted to a string) is the same as Field2. I know this isn't a "nice" structure combining on different types, but the ci...
On emp.eID equals dept.empID Selectnew{emp.eID,emp.eName,dept.dName}; How inner join works in LINQ? In the LINQ query, the inner join is performed using the “join” keyword. It returns the matching records or patterns that appear in two or more tables; the remaining non-matching recor...
' Returns a combined collection of all of the' processes currently running and a descriptive' name for the process taken from a list of' descriptive names.Dimprocesses =FromprocInProcess.GetProcessesJoindescInprocessDescriptionsOnproc.ProcessNameEqualsdesc.ProcessNameSelectproc.ProcessName, proc.Id, ...