public MSRAEntityManager(string serverName)
{
MsraSqlConn = new SQLConn(ServerName, "MsrMetadata");
ServerName = serverName;
InsertQuery = new Dictionary<string, string>();
SelectQuery = new Dictionary<string, string>();
LoadSelectAndInsertSqlQueries();
}
public void LoadMsrFields(string ServerName)
{
Console.WriteLine("Loading Fields of Folders from database schema...");
var sqlConn = new SQLConn(ServerName, WarehouseDBName);
Dictionary<string, Dictionary<string, string>> fieldInfoList = null;
if (!TxtInput[2].Trim().StartsWith("SELECT *"))
{
fieldInfoList = RetrieveParenthesisEnclosedDataFor("SELECT");
}
foreach (KeyValuePair<string, FolderInfo> fItem in FolderList)
{
string tableAlias = fItem.Key;
FolderInfo fInfo = fItem.Value;
string query = String.Format("SELECT Column_Name, Data_Type FROM Information_Schema.Columns WHERE Table_Name = '{0}'", fInfo.TableName);
DataTable dt = sqlConn.ExecuteQuery(query);
foreach (DataRow row in dt.Rows)
{
string columnName = row["Column_Name"].ToString();
string dataType = row["Data_Type"].ToString();
if (TxtInput[2].StartsWith("SELECT ALL"))
{
if (fieldInfoList[tableAlias].ContainsKey(columnName))
fItem.Value.FieldList.Add(new FieldInfo(columnName, dataType, fieldInfoList[fItem.Key][columnName]));
else
fItem.Value.FieldList.Add(new FieldInfo(columnName, dataType));
}
else if (TxtInput[2].StartsWith("SELECT ONLY"))
{
if (fieldInfoList[tableAlias].ContainsKey(columnName))
fItem.Value.FieldList.Add(new FieldInfo(columnName, dataType, fieldInfoList[fItem.Key][columnName]));
}
else if (TxtInput[2].StartsWith("SELECT ALL EXCEPT"))
{
if (!fieldInfoList[tableAlias].ContainsKey(columnName))
fItem.Value.FieldList.Add(new FieldInfo(columnName, dataType, fieldInfoList[fItem.Key][columnName]));
}
else // SELECT *
{
fItem.Value.FieldList.Add(new FieldInfo(columnName, dataType));
}
}
}
}
