public static string ExtractRootName(SqlCollectionExpression expression)
{
SqlRootNameExtractor extractor = new SqlRootNameExtractor();
extractor.Visit(expression);
return(extractor.rootName);
}
protected override void Visit(SqlSubqueryCollection collection)
{
if (collection.Query.FromClause != null)
{
this.rootName = SqlRootNameExtractor.ExtractRootName(collection.Query.FromClause.Expression);
}
else
{
this.rootName = string.Empty;
}
}