[Solved] SQL querying – Doctors and Hospitals [closed]

I’ll help you with your first question, and I’ll leave to you the second. Display doctorid, dname, total fees received by the doctor(s) who have treated more than one patient? Let’s split this problem in pieces: So you need first to know which doctors have treated more than one patient. That information is in the … Read more

[Solved] Need help to UPDATE TABLE [closed]

you are saying that on change in four table you want to update the record in 5th table. For this purpose you can write an update trigger which will trigger on change on any one of the four tables and check if the needed values in four tables are updated and it will change accordingly … Read more

[Solved] Fetching VB Variables to insert with SQL Query [closed]

To link VB variables to an SQL query, you need to add parameters that store the variables and then use those parameters in your SQL command: Using parameters MyCommand = New SqlCommand(“SELECT Height, Weight, DoB, Gender, FROM `User` WHERE Username = @Username”, DatabaseConnection) MyCommand.Parameters.AddWithValue(“@Username”, Username) UPDATE: How to connect to database ‘Leads to the database … Read more

[Solved] SQL Database Algorithm

Even though this question is Way too broad, and actually not asking anything, i’ll give it a few minutes of attention. 1) You backup the current state and work on a Sandbox! 2) if your only need is few reports, i guess you can generate them query the different databases independently and maybe post processing … Read more


Just check this sample , you have to use charindex(to find the index of comma) and substring function to get substring value Declare @var varchar(50) = ‘21699,21712’ select charindex( ‘,’, @var), substring ( @var, charindex(‘,’, @var)+1, len(@var)) you can also use this too: declare @var varchar(50) = ‘21699,21712’ select charindex( ‘,’, @var), substring ( @var, … Read more

[Solved] Convert SQL into LINQ and Lambda

Maybe something like this: var result= ( from s in db.Stands join cp in db.ContractProducts on s.Id equals cp.StandId join p in db.Products on cp.ProductId equals p.Id where s.EventId == 1 group p by p.Description into g select new { Description=g.Key, TotalArea = g.Sum (x =>x.TotalArea) } ).ToList(); Where db is the linqdatacontext 1 solved … Read more