If using "using" is it important to use var type
<p>Are the following equivalent?<br>
Is it important to use <code>var</code> type in certain circumstances?</p>

<p>Currently using this:</p>

<pre><code>static int ReturnIDfromDb(string sqlString, string outputParam) {
    var connectionString = ConfigurationManager.ConnectionStrings["xxx"].ConnectionString;
    using(var conn = new SqlConnection(connectionString))
    using(var comm = new SqlCommand(sqlString, conn)) {
        ...
    }
}
</code></pre>

<p>Is this not more specific?</p>

<pre><code>static int ReturnIDfromDb(string sqlString, string outputParam) {
    var connectionString = ConfigurationManager.ConnectionStrings["xxx"].ConnectionString;
    using(SqlConnection conn = new SqlConnection(connectionString))
    using(SqlCommand comm = new SqlCommand(sqlString, conn)) {
        ...
    }
}
</code></pre>
