### Instruction: CREATE TABLE employeedetails (EmployeeId numeric,UserId int,UserName varchar,EmpCode varchar,title varchar,FirstName nvarchar,MiddleName nvarchar,FatherName varchar,Phone nvarchar,CellPhone nvarchar,
IsMobileNumberPublic bit,OfficePhone nvarchar,Extension varchar,Email nvarchar,IsEmailIdPublic bit,AlternateEmailId varchar,QuitDate datetime,DeptName varchar,DesignationName varchar,Religion varchar,Nationality varchar,PlaceOfBirth nvarchar,BirthDate datetime,JoiningDate datetime,Gender varchar,HousePhone nvarchar,MaritalStatusName varchar,BranchName varchar,ReportingManagerName nvarchar,EmployeeGrade int,IsEmployeeExit bit,ExitDate datetime,ReasonToLeave nvarchar,IsLeavedJob bit,SocialSecurityNo nvarchar,LeaveJobDate datetime,Status int,CreatedOn datetime,UpdatedOn datetime,PFNo nvarchar,ESINo nvarchar,CTC decimal,CreatedMachineIP varchar,UpdatedMachineIP varchar,IsTDSapplicable bit,GrossPay decimal,WorkerType int,EmpExitType nvarchar,JobLevelName varchar,companyid int,branchid int)'' 
CREATE TABLE Ex_ReimbursementRequest_details (Rr_SysCode bigint, RF_ID numeric, CompanyID numeric, BranchID int, DepartmentID int, DesignationID int, ReimbursementTypeID int, Reimbursement_Cat nvarchar, FromDate date, Todate date, PolicyAllocationID int, Particular nvarchar, source nvarchar, Destination nvarchar, Kilometer float, FuelType nvarchar, CityCategoryTypeID nvarchar, ReimbursementAmount decimal, Status bit, FileNames nvarchar, FilePath nvarchar, Filetype nvarchar, CreatedById numeric, UserName datetime, CreatedOn varchar, CreatedByMachinIP numeric, UpdatedById datetime, UpdatedOn varchar, UpdatedByMachinIP varchar) --Using valid MS SQL Server, answer the following questions for the tables provided above. -- Provide the reimbursement category that has the highest request count made by single male employees in Noida Branch of department - Operations. 
### Response: SELECT TOP 1 Reimbursement_Cat, isnull(COUNT(*),0) AS num_reimbursements, e.BranchName FROM Ex_ReimbursementRequest_details as rrd LEFT JOIN Employeedetails e ON rrd.UserName = e.UserName WHERE e.BranchName = 'Noida' AND e.Gender = 'male' AND MaritalStatusName = 'single' AND DeptName = 'Operations' GROUP BY Reimbursement_Cat, e.BranchName ORDER BY num_reimbursements DESC''