dataset

问题 I want to try to make unit test with DBUnit but I have a problem with my dataset. Here is my persistence object: @Entity @Table(name = "personnes") public class Personne implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Integer pk; @Column private String name; } And my dataset: <?xml version='1.0' encoding='UTF-8'?> <dataset> <personnes name="toto" pk="1" /> </dataset> My problem is with the name column, I get this error: org.dbunit.dataset

问题 Im trying to get the values from each column in a single row to equal a total. Here is the code that im using to achieve this in c# asp.net DataTable dt = ds.Tables.Add("InspireTable"); string pass = (String)Session["name"]; if (pass.Equals("High")) { dt.Columns.Add("Inspire", typeof(string)); dt.Columns.Add("SNS", typeof(int)); dt.Columns.Add("TT", typeof(int)); dt.Columns.Add("Music", typeof(int)); dt.Columns.Add("Total", typeof(string)); DataRow row = dt.NewRow(); row["Inspire"] = "Score";

问题 In the answer to a previous question here, I was advised to also ask about this related issue. Once in awhile, the report generation code I have throws two exceptions (they don't display to the user, and they think everything is hunky dory), but I get them emailed to me. The first is, " Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. " ...and the one that always follows quickly thereafter is, " Cannot find table 0 " The first

问题 I need to reshape my data for panel data analysis. I searched the internet and only found out how to get the desired results by using Stata; however I am supposed to use R and Excel. My initial and final data(the desired result) looks very similar to the given in the first page of this example of reshaping data with Stata. http://spot.colorado.edu/~moonhawk/technical/C1912567120/E220703361/Media/reshape.pdf Is it attainable with R or just Excel? I tried using melt function from reshape2

问题 I came across one programming issue that I have tried to solve it as follows: dsDataSet.Tables("promotion") = New DataTable. But Unfortunately this does not work because error: property 'Item' is read only Is there away to accomplish this? 回答1: The Tables collection of a DataSet could be modified using the Add, Remove methods dsDataSet.Tables.Add(new DataTable("promotion")) of course, the line above requires that the collection doesnt already contain a table named "promotion". If you have

问题 I am using Vb.Net 2010 to develop project that has crystal reports. I connect to sqlserver and fill my dataset using the function Adapter.Fill(dataset,"tableName"). My concern now is how can I display the data in my dataset or datatable in crystal report? 回答1: here my code using 2 tables authors and titleauthor 'Build a SQL statement to query for the authors table Dim sqlString As String = "SELECT * FROM authors" 'Retrieve the data using the SQL statement adoOleDbDataAdapter = New

问题 This is extended from previous question regarding Query Top Three Reference ID. Since "level" column become dynamic and I need to keep it while display on gridview. My plan to create 2 dataset (Parent and Child). 1) Regarding Child Dataset already have a answer (thanks to Rudolf) like below:- Table Test ID Name RefID A AAAA null B BBBB A C CCCC B D DDDD C E EEEE D F FFFF E Sql Statement select ID, 'Level(' + cast(level as varchar(255)) + ')' GroupLevel, RefID from ( select t0.ID, case level

问题 I have a WinForms / .Net 4.0 application in Visual Studio 2015 Update 3. When I try to add, or edit, a TableAdapter in any of my DataSets, I get this error: The wizard detected the following problems when configuring the TableAdapter: Details: Generated SELECT statement. [A]MySQL.Data.MySqlClient.MySqlConnection cannot be cast to [B]MySQL.Data.MySqlClient.MySqlConnection. Type A originates from 'MySQL.Data Version 6.9.8.0, Culture=neutral,PublicToken=c5687fc88969c44d' in context 'Default' at

问题 Following code does not delete a row from dataset and dont update the database.... string cs = ConfigurationManager.ConnectionStrings["DBCS"].ConnectionString; SqlConnection con = new SqlConnection(); con.ConnectionString = cs; SqlDataAdapter adpt = new SqlDataAdapter("Select *from RegisterInfoB", con); ds = new DataSet(); adpt.Fill(ds, "RegisterTable"); foreach (DataRow dr in ds.Tables[0].Rows) { if (dr["FirstName"] == "praveen") { dr.Delete(); } } ds.Tables[0].AcceptChanges(); How to

问题 I have a huge set of data which has several columns and about 10k rows in more than 100 csv files, for now I am concerned about only one column with message format and from them I want to extract two parameters. I searched extensively around and I found two solutions that seem close but are not enough close to solve the question here. ONE & TWO Input : Col name "Text" and every message is a separate row in a csv. "Let's Bounce!😉 #[message_1] Loving the energy & Microphonic Mayhem while…"