Execute query and populate the same in datagrid box

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I have a winform app connected to access database as data source ,

but in access i was using this below SQL to generate a query table called trend:

SQL

TRANSFORM Count(Complaint_Number) AS [Total Numbers]
SELECT Nature_of_problem, Count(Complaint_Number) AS [Total Numbers of Issues]
FROM master_table
GROUP BY Nature_of_problem
PIVOT Format(Complaint_Received_On,"mmm") In ("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");

What I have tried:

But i do not know how execute this & populate the same in datagrid box on form load event(dataset:CSCdataset) , please help me.

Posted 11-Aug-20 23:14pm

Member 14898617

Updated 11-Aug-20 23:43pm

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Sandeep Mewara 12-Aug-20 5:20am

You want to execute the above SQL queries, right?

A stored procedure define with above and you call this SP from your C# code. ?

Member 14898617 12-Aug-20 5:23am

Thank you for your response , the problem is i am using access database
(csc.accdb in my desktop)as datasource not MYSQL which can be stored procedures , so could you please help me in executing directly by coding ? and populate the same in data grid box n form load event.

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OriginalGriff · Answer 1 · 2020-08-11T23:43:00

Solution 1

Quote:
Thank you for your response , the problem is i am using access database
(csc.accdb in my desktop)as datasource not MYSQL which can be stored procedures , so could you please help me in executing directly by coding ? and populate the same in data grid box n form load event.

Access (from the 2010 version at least) has stored procedures: How do I make a stored procedure in MS Access? - Stack Overflow[^] shows you how to create them.

Posted 11-Aug-20 23:43pm

OriginalGriff

Comments

Member 14898617 12-Aug-20 7:09am

Hello inline with your suggestion , i have made the below code but agin i am struck in formatting this sql to include double quotes , could you please help me :

private readonly OleDbConnectionStringBuilder _builder = new OleDbConnectionStringBuilder
        {
            Provider = "Microsoft.ACE.OLEDB.12.0",
            DataSource = "S:\\Customer_Service\\Wires\\Database for CSC\\Backend data of databse do not open\\CSC.accdb"
        };

        public DataTable Read()
        {
            var dt = new DataTable();

            using (var cn = new OleDbConnection { ConnectionString = _builder.ConnectionString })
            {

                using (var cmd = new OleDbCommand { Connection = cn })
                {
                    cmd.CommandText = @"TRANSFORM Count(Complaint_Number) AS [Total Numbers]
                                       SELECT Nature_of_problem, Count(Complaint_Number) AS[Total Numbers of Issues]
                                       FROM master_table
                                       GROUP BY Nature_of_problem
                                       PIVOT Format(Complaint_Received_On, "mmm") In("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"); 
                    cn.Open();
                    dt.Load(cmd.ExecuteReader());
                }
            }

            return dt;

        }
    }

OriginalGriff 12-Aug-20 7:23am

To include double quotes in a escaped string literal, just double them:

string s = @"This is a double quote: "" this is a single quote: '";

Member 14898617 12-Aug-20 7:45am

Thank you so much it is working now

OriginalGriff 12-Aug-20 7:50am

You're welcome!