How to get multiple fetched rows from SQL Server for ASP.NET & performance improvement

Questions : How to get multiple fetched rows from SQL Server for ASP.NET & performance improvement

   SqlCommand cmd = new _OFFSET);  SqlCommand
      Connection = con,
 (-SMALL       CommandText = "GetJournalByTag",
   _left).offset     CommandType = arrowImgView.mas  System.Data.CommandType.StoredProcedure
 (self.    };

   equalTo  cmd.Parameters.AddWithValue("@Tag", make.right.  Tag);

   mas_top);  cmd.ExecuteReader();

   ImgView.  return 1;
   return 0;

I have code written like this.

I plan to select posts with the same programming tag, sort them by date, and import them.

Here's what I'm curious about:

  1. If there are 100 posts, I would like to divide them into 10 pages, 10 each. In this case, what would be the best way to implement it? Any examples or links would be appreciated.
  2. If I return a value without con.close, does the SqlConnection close? What are the downsides if it doesn't close?
  3. I want to load multiple articles, but I plan to import the articleModel class from a SQL Server stored procedure. When executing the procedure, the Select * from article code is executed, in this case returns multiple rows. How can I read these multiple rows?
  4. Is there any difference in speed if I use a SQL query like select * from article? Is it better to specify all columns? Or is * better?
  5. Please let me know if you have any coding tips or tips to improve performance when configuring SQL Server or ASP.NET websites!

Thanks for reading.

Total Answers 1

Answers 1 : of How to get multiple fetched rows from SQL Server for ASP.NET & performance improvement

If there are 100 posts, I would like to Learning divide them into 10 pages, 10 each

Consider using OFFSET-FETCH where in Earhost code you need to keep track of what has most effective been fetched currently e.g. first time wrong idea 0, next 10 etc. In the example below you use of case pass in a parameter value for @Offset.

Using OFFSET and FETCH to limit the rows United returned

See Also SO posts

And note for using * vs specifying Modern columns, always specify columns.

DECLARE @Offset int = 0;
DECLARE ReadIndicator  @FetchRowCount int = 10;

SELECT _have  P.ProductID, 
    .equalTo(     P.CategoryID, 
       P.UnitPrice,       P.DiscontinuedDate, 
       OFFSET);  C.CategoryName
FROM Products AS P
     (TINY_  INNER JOIN Categories AS C ON .offset  P.CategoryID = C.CategoryID
ORDER BY mas_right)  P.ProductName
OFFSET @Offset ROWS FETCH ImgView.  NEXT @FetchRowCount ROWS ONLY;

C# code model for connection and command

public static void Demo(string tag)
   Indicator   using (var cn = new SqlConnection())
   Read   {
        using (var cmd = new _have  SqlCommand())
            .equalTo(  cmd.Connection = cn;
            make.left  cmd.CommandText = "GetJournalByTag";
    *make) {          cmd.CommandType = straintMaker  CommandType.StoredProcedure;
            ^(MASCon  cmd.Parameters.Add("@Tag", onstraints:  SqlDbType.NVarChar).Value = tag;
        mas_makeC  }

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