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  • LINQ TO SQL, Dynamic query with DATE type fields

    - by acanthus
    Hello, I'm building a query with the LINQ dynamic library so I don't know how many potential parameters will I have and I get an error when trying to query DATE type fields: Operator '=' incompatible with operand types 'DateTime' and 'String' When I step through the debugger in the Dynamic.cs it shows that the value is of type string and the field is of type date so the problem is obvious but I have no idea how to approach it. Any ideas? BR

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  • On Update: Auto Update Date/Time Field

    - by Abs
    Hello all, Is there an equivalent of MySQLs on update field for SQL server? With both DEFAULT CURRENT_TIMESTAMP and ON UPDATE CURRENT_TIMESTAMP clauses, the column has the current timestamp for its default value, and is automatically updated. What I am looking for is to have a date/time field and every time I update a record it updates the field with the date/time it was updated automatically? If it doesn't exist, I guess I'll have to go manual. Thanks all

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  • Mysql date : 0000-00-00 00:00:00

    - by jasmine
    In my query: $cselect = mysql_real_escape_string($_POST['cselect']); --------------- --------------- $sql = sprintf("INSERT INTO content (id, catID, title, abstract, body, status, published, date, description_meta, keywords_meta) VALUES ('', '%s', '%s','%s','%s','%s','%s','%s','', '' )", $cselect,$chead, $cabst,$ctext, $cp, $cradio, 'TIMESTAMP: Auto NOW()'); ouptput for date is: 0000-00-00 00:00:00. What is wrong in my query? Thanks in advance

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  • Inline in aspx, stripping date off of datetime

    - by DJGray
    I think if I just show you the following what I'm asking will make sense. In a link in my aspx, this works: ' title='<%# Container.DataItem["EventTime"].ToString() But the above contains the date portion of the string. This does not work (nor does any variant of it): ' title='<%# Container.DataItem["EventTime"].ToString("hh:mm:ss tt", CultureInfo.InvariantCulture) % Evantually, we want the title/hover for the link to read something like "4:30 PM : @Forbes Field" Everything is working with the exception of the 1/1/1900 being in front of the 4:30 How do I get the date off that EventTime datetime field?

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  • Date difference in SQL Server 2005

    - by naveen
    Hi, I have two dates of the form Start Date: 2007-03-24, End Date: 2009-06-26 Now I need to find the difference between these two in the below form: 2 years, 3 months and 2 days Can someone please … in SQL Server 2005

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  • insert date to oracle

    - by Gold
    hi i have 2 Date field's in oracle 10g (MyDate and MyTime) and i need to insert string that contain a date & time strDate = 04/01/2010 00:00:00 strTime = 01/06/2010 17:20:12 how to insert strDate & strTime to field's MyDate & MyTime

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  • With JS add default date on TextBox

    - by senzacionale
    <asp:TextBox ID="txtDate" runat="server" AutoPostBack="true" OnTextChanged="txtDate_TextChanged"></asp:TextBox> how can with Jquery add default date. I do not know where and when to call this code: function addDefaultDate() { if ($('#txtDate').val().length == 0) { var now = new Date(); $('#txtDate').text(now.getDate() + '.' + now.getMonth() + '.' + now.getYear()); } }

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  • Javascript function to add X months to a date

    - by George
    Is there a built in equivalent to the .NET framework's DateAdd or AddMonths functions? I'm looking for the easiest, cleanest way to add X month to a Javascript date. I'd rather not handle the rolloing over of the year as done here. or have to write my own function as done here. Is there something built in that is as nice as the .NET Date.AddMonths function? Or something close?

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  • Order and group by date in Mysql

    - by Alexd2
    Hi all and thanks in advance. I have a small problem which can not resolve, I have this table, and I want to sort by date and group it (but I only show 1 per idCAT) | id | idcat | name | date | | 1 | 3 | xx | 2011-01-02 | | 2 | 4 | xf | 2011-01-02 | | 3 | 3 | cd | 2011-01-01 | | 4 | 1 | cg | 2011-01-04 | | 5 | 4 | ce | 2011-01-06 | would like to stay that way, try in a way but I can not | 2 | 4 | xf | 2011-01-01 | | 3 | 3 | cd | 2011-01-02 | | 4 | 1 | cg | 2011-01-04 |

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  • List of rich web application technologies

    - by Michal Czardybon
    I am trying to get myself acquainted with the world of rich web application. There are some comparison tables of available technologies on the Wikipedia, but I still find it unclear what are the options for rich application development. Could you please verify and complete the information I gathered below? What are the key pros and cons of each option? Which is the best choice for big and very rich web application? Option 1: ASP.NET/ASP.NET MVC Vendor: Microsoft Environment: Visual Studio Language: C# Output: HTML+JavaScript+AJAX Example: www.stackoverflow.com Option 2: Silverlight Vendor: Microsoft Environment: Visual Studio Language: C# Output: .NET executable? Example: ? Option 3: Google Web Toolkit Vendor: Google Environment: Eclipse Language: Java Output: HTML+JavaScript+AJAX Example: http://www.projectkaiser.com:8080/pk/ Option 4: Flex Vendor: Adobe Environment: ? Language: ? Output: Flash (.swf file) Example: http://listen.grooveshark.com/ Option 5: Adobe AIR Vendor: Adobe Environment: ? Language: ? Output: AIR Example: http://www.colabolo.com/en/download.html Option 5: Ruby on Rails Vendor: Rails Core Team Envirnoment: ? Language: Ruby Output: HTML+JavaScript+AJAX? Example: ? Option 6: Java Applets Vendor: Sun Environment: Eclipse Language: Java Output: Java Applet Option 7: OpenLeszlo Vendor: ? Environment: ? Language: ? Output: ? Example: ? Option 8: Python? ??? Option 9: XUL ???

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  • VBA compare and sort strings with quirky characters

    - by Smandoli
    I am comparing text values from two DAO recordsets in MS Access. I sort on the text field, then go through both recordsets comparing the values from each. The sets are substantially different and while they're mostly alpha-numeric, spaces and symbols like hyphens and periods are very common. My program depends on predictable sorting and fool-proof comparing. But unfortunately, the sort will rank two values differently than the comparison function. StrComp is the obvious first choice: varResult = StrComp(Val_1, Val_2) RFA-300 14.9044 RFA300 14-2044 But for the two pairs above, StrComp returns a different value than one would expect based on the sort. Including vbTextCompare or vbBinaryCompare affects StrComp's result, but not so as to solve the problem. Note the values must always be compared as strings. Of course I make sure that "14-2044" and "14.9044" aren't evaluated as -2030 and ~15. That's not the cause of my problem. I learned API-based functions are more reliable for quirky texts, so I tried these: varResult = CompareString(LOCALE_SYSTEM_DEFAULT, _ SORT_STRINGSORT, strVal_2, -1, strVal_1, -1) varResult = CompareString(LOCALE_SYSTEM_DEFAULT, _ NORM_IGNOREWIDTH, strVal_2, -1, strVal_1, -1) The first one returns the opposite of StrComp. The second one returns the same as StrComp. But neither yields a result that is consistent with the sort order. (NORM_IGNOREWIDTH is probably not relevant, but I needed a place-holder substitute and it looked as good as any.) UPDATE: This is a complete rewrite of the original post, deleting all the info about why I really need this -- just take my word for it and enjoy the brevity.

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  • Fast Lightweight Image Comparisson Metric Algorithm

    - by gav
    Hi All, I am developing an application for the Android platform which contains 1000+ image filters that have been 'evolved'. When a user selects a photo I want to present the most relevant filters first. This 'relevance' should be dependent on previous use cases. I have already developed tools that register when a filtered image is saved; this combination of filter and image can be seen as the training data for my system. The issue is that the comparison must occur between selecting an image and the next screen coming up. From a UI point of view I need the whole process to take less that 4 seconds; select an image- obtain a metric to use for similarity - check against use cases - return 6 closest matches. I figure with 4 seconds I can use animations and progress dialogs to keep the user happy. Due to platform contraints I am fairly limited in the computational expense of the algorithm. I have implemented a technique adapted from various online tutorials for running C code on the G1 and hence this language is available Specific Constraints; Qualcomm® MSM7201A™, 528 MHz Processor 320 x 480 Pixel bitmap in 32 bit ARGB ~ 2 seconds computational time for the native method to get the metric ~ 2 seconds to compare the metric of the current image with training data This is an academic project so all ideas are welcome, anything you can think of or have heard about would be of interest to me. My ideas; I want to keep the complexity down (O(n*m)?) by using pixel data only rather than a neighbourhood function I was looking at using the Colour historgram/Greyscale histogram/Texture/Entropy of the image, combining them to make the measure. There will be an obvious loss of information but I need the resultant metric to be substantially smaller than the memory footprint of the image (~0.512 MB) As I said, any ideas to direct my research would be fantastic. Kind regards, Gavin

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  • Performance of Java matrix math libraries?

    - by dfrankow
    We are computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question: Do folk have experience with the performance of Java libraries for matrix math (e.g., multiply, inverse, etc.)? For example: JAMA: http://math.nist.gov/javanumerics/jama/ COLT: http://acs.lbl.gov/~hoschek/colt/ Apache commons math: http://commons.apache.org/math/ I searched and found nothing. Details of our speed comparison: We are using Intel FORTRAN (ifort (IFORT) 10.1 20070913). We have reimplemented it in Java (1.6) using Apache commons math 1.2 matrix ops, and it agrees to all of its digits of accuracy. (We have reasons for wanting it in Java.) (Java doubles, Fortran real*8). Fortran: 6 minutes, Java 33 minutes, same machine. jvisualm profiling shows much time spent in RealMatrixImpl.{getEntry,isValidCoordinate} (which appear to be gone in unreleased Apache commons math 2.0, but 2.0 is no faster). Fortran is using Atlas BLAS routines (dpotrf, etc.). Obviously this could depend on our code in each language, but we believe most of the time is in equivalent matrix operations. In several other computations that do not involve libraries, Java has not been much slower, and sometimes much faster.

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