/// <summary>
/// 判断指定的数据字段是否存在
/// </summary>
/// <param name="tableName"></param>
/// <param name="fieldName"></param>
/// <returns></returns>
public static bool HasDataField(string tableName, string fieldName)
{
IDBQuery query = CFAspect.Resolve <IDBQuery>();
DBBuilder sql = DBBuilder.Select().Append(dbAdapter => "count(*) from " + dbAdapter.FormatFunction("getcolumns", dbAdapter.FormatValue(tableName)) + " where column_name=" + dbAdapter.FormatValue(fieldName));
return(Convert.ToInt32(query.ToScalar(sql)) > 0);
}
