-- Example Source table CREATE TABLE #SourceTable ( Contact CHAR(30) ); INSERT #SourceTable VALUES ( 'User1' ) INSERT #SourceTable VALUES ( 'User2' ) INSERT #SourceTable VALUES ( 'User3' ) -- Example Dest table CREATE TABLE #ImportedUsers ( Id INT IDENTITY(1, 1) NOT NULL , UserName CHAR(30) ); -- Imported users + new ID table DECLARE @IDs TABLE ( Id INT , UserName CHAR(30) ) INSERT #ImportedUsers OUTPUT inserted.Id , inserted.UserName INTO @IDs ( Id , UserName ) SELECT DISTINCT Contact FROM #SourceTable SELECT * FROM @IDs
Friday, 12 December 2014
SQL - How to capture multiple identities from INSERT INTO SELECT
Monday, 29 September 2014
Time Your Code Using StopWatch
Here's a useful snippet for timing how long a piece of code takes to execute, and so can be useful for identifying bottlenecks.
using System; using System.Diagnostics; using System.Threading; class Program { static void Main(string[] args) { Stopwatch stopWatch = new Stopwatch(); stopWatch.Start(); // Code you want to measure goes here.. lets just sleep for the purpose of this example Thread.Sleep(10000); stopWatch.Stop(); // Get the elapsed time as a TimeSpan value. TimeSpan ts = stopWatch.Elapsed; // Format and display the TimeSpan value into something meaningful string elapsedTime = String.Format("{0:00}:{1:00}:{2:00}.{3:00}", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10); Console.WriteLine("RunTime " + elapsedTime); } }
Tuesday, 15 October 2013
SQL Server - How convert SQL rows to Comma Separated String (CSV)
declare @T table (GroupID int, Value varchar(10)) insert into @T values (1, 'Row 1') insert into @T values (1, 'Row 2') insert into @T values (2, 'Row 3') insert into @T values (2, 'Row 4') insert into @T values (2, 'Row 5') select GroupID, stuff( (select ','+Value as '*' from @T as T2 where T2.GroupID = T1.GroupID for xml path('')), 1, 1, '') as [Values] from @T as T1 group by GroupID go
Thursday, 4 July 2013
C# - How to Fetch a Report from SQL Server Reporting Services (SSRS)
Tested with SSRS 2008, may well work with 2005 too. You'll need to add a Service Reference in your project to the SSRS API, which will generate the ReportExecutionServiceSoapClient proxy seen here. You can request the report in various formats: "PDF", "WORD", or "EXCEL".
If you want to save the returned byte array to a file, it's easily done like this:
class ReportFetcher { public enum ReportFileFormat { PDF } /// <summary> /// Makes a call to a a SSRS server to load and render a report in a certain file format /// </summary> /// <param name="pathToReport">Path to the report on the server (including name)</param> /// <param name="execParams">Execution parameters</param> /// <param name="fileFormat">Rendering file format</param> /// <returns></returns> public byte[] ToFile(string pathToReport, List<ParameterValue> execParams, string format = "PDF") { ExecutionInfo execInfo; var trusteduserHeader = new TrustedUserHeader(); var execHeader = new ExecutionHeader(); ServerInfoHeader serviceInfo; var client = new ReportExecutionServiceSoapClient(); if (client.ClientCredentials == null) { throw new NullReferenceException("Client Credentials are null"); } client.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation; client.ClientCredentials.Windows.ClientCredential = CredentialCache.DefaultNetworkCredentials; // Load the report client.LoadReport(trusteduserHeader, pathToReport, null, out serviceInfo, out execInfo); execHeader.ExecutionID = execInfo.ExecutionID; client.SetExecutionParameters(execHeader, trusteduserHeader, execParams.ToArray(), "en-us", out execInfo); // Render the report string extension; string encoding; string mimeType; string[] streamIds; var warnings = new Warning[1]; warnings[0] = new Warning(); Byte[] result; client.Render(execHeader, trusteduserHeader, format, null, out result, out extension, out mimeType, out encoding, out warnings, out streamIds); ConnectionHelper.SafelyCloseConnection(client); return result; } }
If you want to save the returned byte array to a file, it's easily done like this:
using (var stream = File.OpenWrite("myReport.pdf"))
{ stream.Write(result, 0, result.Length);
}
Tuesday, 2 July 2013
C# ASP.NET MVC4 - How to Generate an Atom or RSS Feed
.NET's syndication classes make creating RSS/Atom feeds easy. Here's how to do it in ASP.NET MVC. We're using Atom below, but switching to RSS is simply a matter of changing the Atom10FeedFormatter to Rss20FeedFormatter.
The feed url in this example would be http://myserver/myappname/feed
The feed url in this example would be http://myserver/myappname/feed
public class FeedResult : ActionResult { public Encoding ContentEncoding { get; set; } public string ContentType { get; set; } private readonly SyndicationFeedFormatter _feed; public SyndicationFeedFormatter Feed { get { return _feed; } } public FeedResult(SyndicationFeedFormatter feed) { _feed = feed; } public override void ExecuteResult(ControllerContext context) { if (context == null) throw new ArgumentNullException("context"); HttpResponseBase response = context.HttpContext.Response; response.ContentType = !string.IsNullOrEmpty(ContentType) ? ContentType : "application/rss+xml"; if (ContentEncoding != null) response.ContentEncoding = ContentEncoding; if (_feed != null) { using (var xmlWriter = new XmlTextWriter(response.Output)) { xmlWriter.Formatting = Formatting.Indented; _feed.WriteTo(xmlWriter); } } } }
public class FeedController : Controller { private readonly IPostingDataSource _db; private static readonly Settings Settings = new Settings(); private const int ItemContentLength = 500; public FeedController() { _db = new PostingDbContext(); } public ActionResult Index() { string appUrl = Request.Url.GetLeftPart(UriPartial.Authority) + Request.ApplicationPath; string detailsUrl = appUrl + "/Home/Details/"; var postItems = _db.Postings .OrderByDescending(x => x.AddedDate) .Take(20) .AsEnumerable() .Select(p => new SyndicationItem(p.Title, TruncateLongString(p.Body, ItemContentLength, true), new Uri(detailsUrl + p.Id), p.Id.ToString(), new DateTimeOffset(p.AddedDate))); var feed = new SyndicationFeed("bCay Auctions", "Buy! Sell!", new Uri(appUrl), postItems) { Copyright = new TextSyndicationContent("Codestruck Productions"), Language = "en-US" }; feed.Authors.Add(new SyndicationPerson(Settings.Email, "Codestruck", appUrl)); // Can change from Atom to RSS here return new FeedResult(new Atom10FeedFormatter(feed)); } private static string TruncateLongString(string str, int maxLength, bool addEllipsis) { if (str.Length <= maxLength) return str; string result = str.Substring(0, Math.Min(str.Length, maxLength)); if (addEllipsis) result += "..."; return result; } }
Monday, 1 July 2013
Welcome to Codestruck
I've started this blog as a place to keep useful code snippets, whether I come across them on-line or code I've written myself. Keeping stuff here in on place will certainly be useful to me, and I hope others will find it useful too.
Codestruck. Like star-struck, but less celebrity-spotting and more bug-spotting.
Codestruck. Like star-struck, but less celebrity-spotting and more bug-spotting.
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