dataset

问题 I use Delphi 7 + Zeos + MySQL, and I got a problem when I try to post Master table, the Details datasets are posted first, raising a referencial integrity exception in data base, 'couse details tables needs the ID of the Master table. Can I revert this behavior? Can I persist the master table before the details? 回答1: I think it's just the way TDataSet work. If you have unposted detail records, master. Post forces them to Post if I remember correctly. So I am guessing you have something like:

问题 I want to prepare the omniglot dataset for n-shot learning. Therefore I need 5 samples from 10 classes (alphabet) Code to reproduce import tensorflow as tf import tensorflow_datasets as tfds import numpy as np builder = tfds.builder("omniglot") # assert builder.info.splits['train'].num_examples == 60000 builder.download_and_prepare() # Load data from disk as tf.data.Datasets datasets = builder.as_dataset() dataset, test_dataset = datasets['train'], datasets['test'] def resize(example): image

问题 I want to prepare the omniglot dataset for n-shot learning. Therefore I need 5 samples from 10 classes (alphabet) Code to reproduce import tensorflow as tf import tensorflow_datasets as tfds import numpy as np builder = tfds.builder("omniglot") # assert builder.info.splits['train'].num_examples == 60000 builder.download_and_prepare() # Load data from disk as tf.data.Datasets datasets = builder.as_dataset() dataset, test_dataset = datasets['train'], datasets['test'] def resize(example): image

问题 I want to prepare the omniglot dataset for n-shot learning. Therefore I need 5 samples from 10 classes (alphabet) Code to reproduce import tensorflow as tf import tensorflow_datasets as tfds import numpy as np builder = tfds.builder("omniglot") # assert builder.info.splits['train'].num_examples == 60000 builder.download_and_prepare() # Load data from disk as tf.data.Datasets datasets = builder.as_dataset() dataset, test_dataset = datasets['train'], datasets['test'] def resize(example): image

问题 I have following code: DataSet ds = new DataSet(); ds = cls.ReturnDataSet("RetriveData", new SqlParameter("@Field", "mark1"), new SqlParameter("@TblNm", "stud"), new SqlParameter("@WhereClause", "where id=124")); with this I am getting below values: Id mark1 124 21 124 31 124 41 124 23 124 35 124 56 124 67 124 54 124 45 124 63 Now from below I am getting students mark: DataSet dsmark = new DataSet(); dsmark = cls.ReturnDataSet("RetriveData", new SqlParameter("@Field", "marks"), new

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I'm looking for some data to create lookup tables with. Specifically, all the counties in each state in the US, and all the cities in each county. Where might I find municipal datasets like this? EDIT: I'm looking at census.gov and this appears like it may be the ticket. 回答1: http://www.census.gov/statab/www

问题 I am using Spark 1.6.1 and Java as programming language. The following code was working fine with dataframes : simpleProf.groupBy(col("col1"), col("col2") ) .agg( sum("CURRENT_MONTH"), sum("PREVIOUS_MONTH") ); But, it does not using datasets , any idea how to do the same with dataset in Java/Spark? Cheers 回答1: It does not work, in the sense that after the groupBy I get a GroupedDataset object and when I try to apply the function agg it requires typedColumn instead of column. Ahh, there was

问题 Using: SSRS Report Server 10.50.1600.1 BIDS Visual Studio 9.0.30729.4462 (from remote client on same domain and network; not local on SSRS server) I'd like to be able to add existing shared data sources and shared datasets that live on my report server to my BIDS project on my local workstation. I know I can create a shared resource from a BIDS instance, and deploy it to the SSRS server. I can also do the same via Report Builder 3.0; deploy or publish from either application, then navigate to

问题 In DataTable I could sorting with dataTable.DefaultView.Sort = "SortField DESC"; I'm getting a DataSet from database, I was wondering could I do a sorting on the DataSet like how I do it in DataTable . 回答1: you can still access the DataTable from the the data set as follows, ds.Tables[0].DefaultView.Sort =" criterian"; Hope this helps. 回答2: DataView view = ds.Tables[0].DefaultView; view.Sort = "SortField DESC"; http://msdn.microsoft.com/en-us/library/1ay5y4w0(v=vs.71).aspx http://social.msdn

问题 I have never used TreeViews in the past and I want to display a hierarchical structure (recursive relationship of n levels). The data (available in a dataset - retrieved from database query) is in the following structure: __ID__ | __NAME__ | __PARENT__ 1 | Patrick | 2 | Mark | 3 | Scott | 2 4 | Jason | 5 | Julian | 6 | John | 6 7 | Steve | 8 | George | 1 9 | Robert | 1 10 | Rodney | 8 I'm trying to produce the following output - Patrick [1] - George [8] - Rodney [10] - Robert [9] - Mark [2] -