Is it possible to read from one SQL server then read data from an entirely different SQL server using C#?

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Using the users input I've generated a string via string.format to access the sql server then used SqlAdapter to run my SQL Query and finally pass that to a DataTable to be displayed later.

The problem now is that I want to access multiple servers to get the same data from each of them (column names are the same on all servers).

What I have tried:

C#

for(int i =0;i< dataList.Count;i++)
{
connectionString = string.Format(theString, data); //address for the server "data:-is the server id"

// [this area here is where I use my sql query]

}

Posted 9-Oct-18 4:00am

Graeme Cooper

Updated 9-Oct-18 4:35am

MadMyche

v3

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MadMyche 9-Oct-18 10:12am

What are the results of your attempt? Any errors? Are the SQL servers "linked"?

Graeme Cooper 9-Oct-18 10:18am

my major restriction is that I can't link servers. Apart from that my connectionstring is being overloaded.

F-ES Sitecore 9-Oct-18 10:19am

Yes it's possible. You could keep a List of the server names and loop through the names in the list passing them to your string.Format function to get a connection string for that server, then execute your SQL.

Graeme Cooper 9-Oct-18 10:30am

thanks for the reply, I got it working (guess I was being a little impatient)

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#realJSOP · Accepted Answer · 2018-10-09T04:36:00

There are a number of ways you can handle this issue.

0) you can create an ado class that is initialized with a different connection string (inheriting from a base class that provides query functionality)

1) You can create a static class that has a method that allows you to specify the server as a parameter for every query

2) and so on...

3) and so forth...