?
Solved

To get Column datatype from sqlserver table in C#-dotnet

Posted on 2009-05-11
6
Medium Priority
?
1,192 Views
Last Modified: 2013-12-17
Hi,
I have a table with 3 columns.

column   datatype
--------    -----------
x               int                with primary key
y               char(10)        
z              decimal(10,4)

I want to write a query, to get the particular column datatype  from this table, in C#-dotnet winforms application.

Plz, help on this
thanx.
0
Comment
Question by:BDPL
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 31

Accepted Solution

by:
RiteshShah earned 750 total points
ID: 24353092
select data_type from information_schema.columns where table_name='yourTable' and column_name='yourColumn'
0
 
LVL 7

Expert Comment

by:Chandan_Gowda
ID: 24353097
using System;
using System.Data;
using System.Data.SqlClient;


public class MainClass
{
    public static void Main()
    {
        SqlConnection thisConnection = new SqlConnection("server=(local)\\SQLEXPRESS;" + "integrated security=sspi;database=MyDatabase");
       
        //Sql Query 1
        string sql = "SELECT x,y,z FROM tablename; ";
       
        //Create Command object
        SqlCommand thisCommand = new SqlCommand(sql, thisConnection);
       
        try {
            // Open Connection
            thisConnection.Open();
            Console.WriteLine("Connection Opened");
           
            // Execute Query
            SqlDataReader thisReader = thisCommand.ExecuteReader();
           
            // Get column data types
            Console.WriteLine("Data types: {0} | {1}", thisReader.GetDataTypeName(0).PadLeft(13), thisReader.GetDataTypeName(1));
           
           
            //Close DataReader
               
            thisReader.Close();
        }
        catch (SqlException ex) {
            // Display error
            Console.WriteLine("Error: " + ex.ToString());
        }
        finally {
            // Close Connection
            thisConnection.Close();
               
            Console.WriteLine("Connection Closed");
        }
    }
}
0
 
LVL 31

Expert Comment

by:RiteshShah
ID: 24353118
well you can go for simple C# code also but my query is very simple and small, will give you all column name and datatype if you will just pass table name.
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 

Author Comment

by:BDPL
ID: 24353147
Hi, thanx.
But i am not gettting datatype name. I got just datatype heading, in that no available names

plz..
0
 

Author Comment

by:BDPL
ID: 24353157
Hey,

Sorry

I got the exact output. Your qery is nice and simple.

thanx.
0
 
LVL 31

Expert Comment

by:RiteshShah
ID: 24353179
you can get more information about column as well, have a look at by SELECT *
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

by Mark Wills Attending one of Rob Farley's seminars the other day, I heard the phrase "The Accidental DBA" and fell in love with it. It got me thinking about the plight of the newcomer to SQL Server...  So if you are the accidental DBA, or, simp…
Many of us here at EE write code. Many of us write exceptional code; just as many of us write exception-prone code. As we all should know, exceptions are a mechanism for handling errors which are typically out of our control. From database errors, t…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
In this video, Percona Solution Engineer Dimitri Vanoverbeke discusses why you want to use at least three nodes in a database cluster. To discuss how Percona Consulting can help with your design and architecture needs for your database and infras…

801 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question