title: Which collation choose for SQL Server instance and database?
body: <p>I'm working on a Windows application based on a database SQL Server 2008 R2.
  This application is currently sold to companies in Belgium, who use four languages: English, French, Dutch, German. And soon, the application will be sold to other countries in Europe and later in America.</p>
  
  <p>Here are the questions I ask myself:</p>
  
  <ul>
  <li><p>For SQL server instance (one by country):</p>
  
  <ul>
  <li>Which language to choose ?</li>
  <li>Should we make the same choices on case sensitivity, and other accents for the database?</li>
  <li>Must have a binary collation?</li>
  <li>Impacts on temporary treatments (tempdb) ?</li>
  </ul></li>
  <li><p>For the database</p>
  
  <ul>
  <li>Which language to choose ?</li>
  <li>Should take into account the locale used with Windows client application?</li>
  </ul></li>
  <li><p>For development environments and recipe</p>
  
  <ul>
  <li>How to develop and test the application by managing all countries ?</li>
  </ul></li>
  </ul>
  
  <p>Thank you for your help.</p>