/// <summary>
/// Gets the list of tables which have a field with a given name and type
/// </summary>
/// <param name="connection">Opened database connection</param>
/// <param name="filedName">The name of filed to restrict to</param>
/// <param name="dataType">The name of filed to restrict to</param>
/// <returns>List of table names</returns>
public static List <string> GetTablesByField(DbConnection connection, string fieldName, string dataType)
{
DbUtilities.DumpDataSchema(connection);
List <string> list = new List <string>();
DataTable table = connection.GetSchema("Columns");
if (table != null)
{
int indexColumnName = table.Columns.IndexOf("COLUMN_NAME");
int indexDataType = table.Columns.IndexOf("DATA_TYPE");
int indexTableName = table.Columns.IndexOf("TABLE_NAME");
int size = table.Columns.Count;
if (indexColumnName >= 0 && indexDataType >= 0 && indexTableName >= 0)
{
foreach (DataRow row in table.Rows)
{
if (row[indexColumnName].ToString() == fieldName &&
row[indexDataType].ToString() == dataType)
{
list.Add(row[indexTableName].ToString());
}
}
}
table.Clear();
}
return(list);
}
/// <summary>
/// Dumps data schema to specified writer
/// </summary>
/// <param name="connection"></param>
/// <param name="writer"></param>
public static void DumpDataSchema(DbConnection connection, StreamWriter writer)
{
string key = "debug_key";
if (writer != null)
{
Debug.Listeners.Add(new TextWriterTraceListener(writer.BaseStream, key));
}
DbUtilities.DumpDataSchema(connection);
if (writer != null)
{
Debug.Listeners.Remove(key);
}
}
