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  • Nullable Integer ? (working with linq)

    - by nCdy
    I've got exception about convert NULL to Int32. I've got a table from database with nullable tinyint [Column(Storage="_StatType", DbType="tinyint NULL")] public StatType : int { get { _StatType; } } (to get C# code just replace variable's type) and after making linq select def StartLinq = linq <#from lpi in _CfgListParIzm where lpi.ID_ListParIzm==drr1 select (lpi.StatType) #> ; StartLinq.ToArray()[0] can't be readed if that is null :-/ mutable STT : int = 0; try { _=int.TryParse(StartLinq.ToArray()[0].ToString(), out STT); } catch { | _ is Exception => () /* I don't care*/ } upper code is very poor trick :( I wont use it.

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  • Mysql results sorted by list which is unique for each user

    - by ADAM
    Ive got a table of thousands of products and 50 or so authenticated users. These users all show the products on their own web sites and they all require the ability to have them ordered differently. Im guesing i need some kind of seperate table for the orders which contains the product_id, user_id and order column? How do i do this the most efficiently in mysql so as to be very fast, and not slow down if i get millions of products in the database. Is it even wise to do it in mysql or should i be using some kind of other index like solr/lucene? My Product table is called "products" My User table is called "users" A good example of the functionality i need is google search where you can order/supress the results if you are logged in. edit: the product results will be paginated and the users have the authority to edit the products, so its not just ready only

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  • NSNumber floatValue not equal to NSNumber value

    - by Mirkules
    Hi Everyone, First post here. Having a problem with NSNumber's floatValue method -- somehow, it returns an imprecise number. Here's the problem: I store a bunch of NSNumbers in an array, like this: NSArray *a = [NSArray arrayWithObjects: [NSNumber numberWithFloat:0.04f], [NSNumber numberWithFloat:0.028f], [NSNumber numberWithFloat:0.016f], [NSNumber numberWithFloat:0.004f], nil]; Then I try to retrieve the first value (for example): NSNumber n = (NSNumber) [a objectAtIndex:0]; CGFloat f = [n floatValue]; In the debugger, n shows a value of 0.04 (in the summary column), but f shows a value of 0.0399999991. What am I doing wrong here? Thanks everyone.

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  • How to get all possible values for SPFieldLookup

    - by Anton Polyakov
    Hello! I have a lookup field in sharepoint which just references another list. I wonder how do I programatically enumerate all possible values for this field? For example, my lookup field "Actual City" refers list "Cities" and column "Title", I have 3 cities there. In code I would like to get list of all possible values for field "Actual City", smth like (metacode, sorry): SPFieldLookup f = myList["Actual City"]; Collection availableValues = f.GetAllPossibleValues(); //this should return collection with all cities a user might select for the field

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  • Linq to SQL ordered child collection

    - by Matt Connolly
    Is there a way to define a default order column from a child collection? In my case, I have a Form entity that has a collection of FormItem entities called FormItems. FormItem has a property called DisplayOrder (int). I want to make sure that any Form entities I return from a method have that collection properly ordered. Is there a way to do this before returning the result? For example, I tried this but the list is not actually sorted: var form = context.Forms.FirstOrDefault(x => x.IsDeleted == false && x.FormName == formName); if (form != null) { form.FormItems.OrderBy(x => x.DisplayOrder); // I can't even figure out a way to cast this next line so that it will compile // form.FormItems = form.FormItems.OrderBy(x => x.DisplayOrder); } return form; Is there a way to do this without using DataLoadOptions?

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  • [change] Vlookup onto another workbook

    - by Arcadian
    Hello, here is my dilemma. I have two worksheets one that has the name of clients and one that i want to copy the names to depending on the city. For instance: associated to each column is last name, first name and city. i have hundreds of names associated to different cities and what i would like is from worksheet1.xls to copy all the New York clients to worksheet2.xls either when i open worksheet2 or via macro what ever is easier and because last name is in one cell and the first name is in the other i would have to copy both. I saw that its possible to link cells from one worksheet to another and then do a vlookup depending on the criteria. Is that the best easiest way or is there another? thanks in advance and cheers oleg

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  • HQL(hibernate) timestamp range match

    - by Saky
    I need to write a query to get an object between a range of time, currently the query looks like this: Timestamp from = ... Timestamp to = ... getHibernateTemplate().find("from " + Person.class.getName() + " ml where ml.lastModifiedOn>="+from.toString()+" and m1.lastModifiedOn<=" + to.toString()); However, this doesnot work for obvious reasons. How can I format the timestamp to be acceptable by the query. org.springframework.orm.hibernate3.HibernateQueryException: unexpected token: 16 near line 1, column 123 [from Person ml where ml.lastModifiedOn=2010-02-12 16:00:21.292 and m1.lastModifiedOn

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  • Cannot sort a row of size 8130, which is greater than the allowable maximum of 8094

    - by Sri Kumar
    Hello All, SELECT DISTINCT tblJobReq.JobReqId, tblJobReq.JobStatusId, tblJobClass.JobClassId, tblJobClass.Title, tblJobReq.JobClassSubTitle, tblJobAnnouncement.JobClassDesc, tblJobAnnouncement.EndDate, tblJobAnnouncement.AgencyMktgVerbage, tblJobAnnouncement.SpecInfo, tblJobAnnouncement.Benefits, tblSalary.MinRateSal, tblSalary.MaxRateSal, tblSalary.MinRateHour, tblSalary.MaxRateHour, tblJobClass.StatementEval, tblJobReq.ApprovalDate, tblJobReq.RecruiterId, tblJobReq.AgencyId FROM ((tblJobReq LEFT JOIN tblJobAnnouncement ON tblJobReq.JobReqId =tblJobAnnouncement.JobReqId) INNER JOIN tblJobClass ON tblJobReq.JobClassId = tblJobClass.JobClassId) LEFT JOIN tblSalary ON tblJobClass.SalaryCode = tblSalary.SalaryCode WHERE (tblJobReq.JobClassId in (SELECT JobClassId from tblJobClass WHERE tblJobClass.Title like '%Family Therapist%')) When i try to execute the query it results in the following error. Cannot sort a row of size 8130, which is greater than the allowable maximum of 8094 I checked and didn't find any solution. The only way is to truncate (substring())the "tblJobAnnouncement.JobClassDesc" in the query which has column size of around 8000. Do we have any work around so that i need not truncate the values. Or Can this query be optimised? Any setting in SQL Server 2000?

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  • Accessing and binding events to an ASP.NET Grid view using Jquery

    - by Sayem Ahmed
    I have an ASP page which displays a text box when it loads. It takes an input number, send it to the server through post back, and then displays some record in a grid view. After a number is input into the box, the server fetches some data from a database and add records to the grid view. It also contains a link column, whose URL is set to "#", so that the page isn't redirected when it is clicked. Now I want to bind a jquery "click" event to that link. How can I do that ? I have tried that to do myself but failed, because it is not available when the DOM is loaded (since it only contains rows when a number is input through the box), and is being modified through ASP.NET Ajax post back.

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  • Manually inserting varbinary data into SQL Server

    - by Jeremy Jarrell
    Hi, We have a SQL Server table for user settings. Originally the settings were domain objects which had been serialized as XML into the table but we recently begun serializing them as binary. However, as part of our deployment process we statically pre-populate the table with predefined settings for our users. Originally, this was as simple as copying the XML from a customized database and pasting it into an INSERT statement that was ran after the database was built. However, since we've moved to storing the settings as binary data we can't get this to work. How can we extract binary data from a varbinary column in SQL Server and paste it into a static INSERT script? We only want to use SQL for this, we don't want to use any utilities. Thanks in advance, Jeremy

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  • Python.expat can't parse XML file with bad symbols. How to go around?

    - by culebrón
    I'm trying to parse an XML file with expat, and here's the line where I get bad token exception: <tag k="name" v="???????????????????????????????????????????????????????????????????" /> xml.parsers.expat.ExpatError: not well-formed (invalid token): line 610127, column 37 The symbols in hex look like: \xd1? Seems like someone wrote this string (Russian alfabet) hitting backspace a few times. I set parser.returns_unicode = True, but this didn't help. The 1st line is <?xml version="1.0" encoding="UTF-8"?>. I work with a bz2 file. (bz2.BZ2File) How can I parse the file?

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  • retriving hearders in all pages of word

    - by udaya
    Hi I am exporting data from php page to word,, there i get 'n' number of datas in each page .... How to set the maximum number of data that a word page can contain ,,,, I want only 20 datas in a single page This is the coding i use to export the data to word i got the data in word format but the headers are not available for all the pages ex: Page:1 slno name country state Town 1 vivek india tamilnadu trichy 2 uday india kerala coimbatore like this i am getting many details but in my page:2 i dont get the headers like name country state and town....But i can get the details like kumar america xxxx yyyy i want the result to be like slno name country state town n chris newzealand ghgg jkgj Can i get the headers If it is not possible Is there anyway to limit the number of details being displayed in each page //EDIT YOUR MySQL Connection Info: $DB_Server = "localhost"; //your MySQL Server $DB_Username = "root"; //your MySQL User Name $DB_Password = ""; //your MySQL Password $DB_DBName = "cms"; //your MySQL Database Name $DB_TBLName = ""; //your MySQL Table Name $sql = "SELECT (SELECT COUNT(*) FROM tblentercountry t2 WHERE t2.dbName <= t1.dbName and t1.dbIsDelete='0') AS SLNO ,dbName as Namee,t3.dbCountry as Country,t4.dbState as State,t5.dbTown as Town FROM tblentercountry t1 join tablecountry as t3, tablestate as t4, tabletown as t5 where t1.dbIsDelete='0' and t1.dbCountryId=t3.dbCountryId and t1.dbStateId=t4.dbStateId and t1.dbTownId=t5.dbTownId order by dbName limit 0,50"; //Optional: print out title to top of Excel or Word file with Timestamp //for when file was generated: //set $Use_Titel = 1 to generate title, 0 not to use title $Use_Title = 1; //define date for title: EDIT this to create the time-format you need //$now_date = DATE('m-d-Y H:i'); //define title for .doc or .xls file: EDIT this if you want $title = "Country"; /* Leave the connection info below as it is: just edit the above. (Editing of code past this point recommended only for advanced users.) */ //create MySQL connection $Connect = @MYSQL_CONNECT($DB_Server, $DB_Username, $DB_Password) or DIE("Couldn't connect to MySQL:" . MYSQL_ERROR() . "" . MYSQL_ERRNO()); //select database $Db = @MYSQL_SELECT_DB($DB_DBName, $Connect) or DIE("Couldn't select database:" . MYSQL_ERROR(). "" . MYSQL_ERRNO()); //execute query $result = @MYSQL_QUERY($sql,$Connect) or DIE("Couldn't execute query:" . MYSQL_ERROR(). "" . MYSQL_ERRNO()); //if this parameter is included ($w=1), file returned will be in word format ('.doc') //if parameter is not included, file returned will be in excel format ('.xls') IF (ISSET($w) && ($w==1)) { $file_type = "vnd.ms-excel"; $file_ending = "xls"; }ELSE { $file_type = "msword"; $file_ending = "doc"; } //header info for browser: determines file type ('.doc' or '.xls') HEADER("Content-Type: application/$file_type"); HEADER("Content-Disposition: attachment; filename=database_dump.$file_ending"); HEADER("Pragma: no-cache"); HEADER("Expires: 0"); /* Start of Formatting for Word or Excel */ IF (ISSET($w) && ($w==1)) //check for $w again { /* FORMATTING FOR WORD DOCUMENTS ('.doc') */ //create title with timestamp: IF ($Use_Title == 1) { ECHO("$title\n\n"); } //define separator (defines columns in excel & tabs in word) $sep = "\n"; //new line character WHILE($row = MYSQL_FETCH_ROW($result)) { //set_time_limit(60); // HaRa $schema_insert = ""; FOR($j=0; $j<mysql_num_fields($result);$j++) { //define field names $field_name = MYSQL_FIELD_NAME($result,$j); //will show name of fields $schema_insert .= "$field_name:\t"; IF(!ISSET($row[$j])) { $schema_insert .= "NULL".$sep; } ELSEIF ($row[$j] != "") { $schema_insert .= "$row[$j]".$sep; } ELSE { $schema_insert .= "".$sep; } } $schema_insert = STR_REPLACE($sep."$", "", $schema_insert); $schema_insert .= "\t"; PRINT(TRIM($schema_insert)); //end of each mysql row //creates line to separate data from each MySQL table row PRINT "\n----------------------------------------------------\n"; } }ELSE{ /* FORMATTING FOR EXCEL DOCUMENTS ('.xls') */ //create title with timestamp: IF ($Use_Title == 1) { ECHO("$title\n"); } //define separator (defines columns in excel & tabs in word) $sep = "\t"; //tabbed character //start of printing column names as names of MySQL fields FOR ($i = 0; $i < MYSQL_NUM_FIELDS($result); $i++) { ECHO MYSQL_FIELD_NAME($result,$i) . "\t"; } PRINT("\n"); //end of printing column names //start while loop to get data WHILE($row = MYSQL_FETCH_ROW($result)) { //set_time_limit(60); // HaRa $schema_insert = ""; FOR($j=0; $j<mysql_num_fields($result);$j++) { IF(!ISSET($row[$j])) $schema_insert .= "NULL".$sep; ELSEIF ($row[$j] != "") $schema_insert .= "$row[$j]".$sep; ELSE $schema_insert .= "".$sep; } $schema_insert = STR_REPLACE($sep."$", "", $schema_insert); //following fix suggested by Josue (thanks, Josue!) //this corrects output in excel when table fields contain \n or \r //these two characters are now replaced with a space $schema_insert = PREG_REPLACE("/\r\n|\n\r|\n|\r/", " ", $schema_insert); $schema_insert .= "\t"; PRINT(TRIM($schema_insert)); PRINT "\n"; } } ?

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  • Dynamic size canvas with Scroll bars

    - by Pawan
    Hi, I am developing a simple WPF application without any auto layout. The goal is when a user clicks (mouse down) a element (say textBlock) will appear at the location of the mouse click. For this I am using canvas panel embedded in a Grid of 1 row, 1 column and scrollviewer (visible). The issues are: 1. when the application window is resized the scroll viewers do not become active. 2. I want the ability to auto grow the canvas with mouse drag. Something like in MS-Excel when user drags the mouse horizontally/vertically the canvas should grow. I have searched net a lot to figure this out and am unable to get an answer. Any help in this regard would be great. Thanks a bunch in advance. -P

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  • Automatic Schema Validation using NHibernate/ActiveRecord

    - by Krembo
    Hi, let's assume I have a table of Products with columns: Id, Name, Price and using NHibernate (or ActiveRecord) I map the table to the POCO: public class Product { public virtual long Id { get; set; } public virtual string Name { get; set; } public virtual double Price { get; set; } } Now if someday a new column named ShipmentPrice (let's assume it's double too) will be added to the Products table, is there any way I can automatically know that. For saying automatically I mean adding code to do that or getting an exception? (I assume I don't have control on the columns of the table or a way to know of any changes to the table's schema in advance)

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  • How do I set ORDER BY params using prepated PDO statement?

    - by Marlorn
    I'm having problems using params in the ORDER BY section of my SQL. It doesn't issue any warnings, but prints out nothing. $order = 'columnName'; $direction = 'ASC'; $stmt = $db->prepare("SELECT field from table WHERE column = :my_param ORDER BY :order :direction"); $stmt->bindParam(':my_param', $is_live, PDO::PARAM_STR); $stmt->bindParam(':order', $order, PDO::PARAM_STR); $stmt->bindParam(':direction', $direction, PDO::PARAM_STR); $stmt->execute(); The :my_param works, but not :order or :direction. Is it not being internally escaped correctly? Am I stuck inserting it directly in the SQL? Like so: $order = 'columnName'; $direction = 'ASC'; $stmt = $db->prepare("SELECT * from table WHERE is_live = :is_live ORDER BY $order $direction"); Is there a PDO::PARAM_COLUMN_NAME constant or some equivalent? Thanks!

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  • Make only one row show after search. flexgrid vb6

    - by Andeeh
    So i have flexgrid in my vb6 project I'm working on. It has names on each row, and I have a drop down so the user can select what name they want to see more info for, here is what I have. Dim target_name As String Dim r As Integer ' Get the name. target_name = Combo1 If Len(target_name) = 0 Then Exit Sub ' Search for the name, skipping the column heading row. target_name = LCase$(target_name) For r = 1 To MSFlexGrid1.Rows - 1 If LCase$(MSFlexGrid1.TextMatrix(r, 0)) = _ target_name Then ' We found the target. Select this row. MSFlexGrid1.Row = r MSFlexGrid1.RowSel = r MSFlexGrid1.Col = 0 MSFlexGrid1.ColSel = MSFlexGrid1.Cols - 1 ' Make the row visible. MSFlexGrid1.TopRow = r Exit Sub End If Next r That works well, but it shows everything below that name too, I would like it to single out only the name selected. Any help would be great.

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  • Export a SQL database into a CSV file and use it with WEKA

    - by Simon
    How can I export a query result from a .sql database into a .csv file? I tried with SELECT * FROM players INTO OUTFILE 'players.csv' FIELDS TERMINATED BY ',' LINES TERMINATED BY ';';` and my .csv file is something like: p1,1,2,3 p2,1,4,5 But they are not in saparated columns, all are in 1 column. I tried to create a .csv file by myself just to try WEKA, something like: p1 1 2 3 p2 1 4 5 But WEKA recognizes p1 1 2 3 as a single attribute. So: how can I export correctly a table from a sql db to a csv file? And how can I use it with WEKA?

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  • How do I memoize expensive calculations on Django model objects?

    - by David Eyk
    I have several TextField columns on my UserProfile object which contain JSON objects. I've also defined a setter/getter property for each column which encapsulates the logic for serializing and deserializing the JSON into python datastructures. The nature of this data ensures that it will be accessed many times by view and template logic within a single Request. To save on deserialization costs, I would like to memoize the python datastructures on read, invalidating on direct write to the property or save signal from the model object. Where/How do I store the memo? I'm nervous about using instance variables, as I don't understand the magic behind how any particular UserProfile is instantiated by a query. Is __init__ safe to use, or do I need to check the existence of the memo attribute via hasattr() at each read? Here's an example of my current implementation: class UserProfile(Model): text_json = models.TextField(default=text_defaults) @property def text(self): if not hasattr(self, "text_memo"): self.text_memo = None self.text_memo = self.text_memo or simplejson.loads(self.text_json) return self.text_memo @text.setter def text(self, value=None): self.text_memo = None self.text_json = simplejson.dumps(value)

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  • Are these tables too big for SQL Server or Oracle

    - by Jeffrey Cameron
    Hey all, I'm not much of a database guru so I would like some advice. Background We have 4 tables that are currently stored in Sybase IQ. We don't currently have any choice over this, we're basically stuck with what someone else decided for us. Sybase IQ is a column-oriented database that is perfect for a data warehouse. Unfortunately, my project needs to do a lot of transactional updating (we're more of an operational database) so I'm looking for more mainstream alternatives. Question Given these tables' dimensions, would anyone consider SQL Server or Oracle to be a viable alternative? Table 1 : 172 columns * 32 million rows Table 2 : 453 columns * 7 million rows Table 3 : 112 columns * 13 million rows Table 4 : 147 columns * 2.5 million rows Given the size of data what are the things I should be concerned about in terms of database choice, server configuration, memory, platform, etc.?

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  • How to customize form web part to include multiple columns in search??

    - by Sushant
    Hi, I have edited my form web part to look like this. I am a newbie to moss. As i understand, form web part allows only 1 column to be mapped to my list at a time. I need to configure to it have multiple columns mapped to my list view. Do I need to change any javascript function or use sharepoint designer. I have spent a week trying to accomplish this. Stillon a dead end. Please give some detailed information on how to accomplish this. Any guidance would be extremely helpful. Thanks in advance.

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  • Left Join 3 Tables and Show True or False on Empty Cells

    - by Jason Shultz
    Ok, this may be confusing so I hope I explain it correctly. I have 4 tables: business photos video category I want to display "featured" businesses on the home page (or elsewhere) and I want to show a Yes or No in the table row based upon whether or not there are photos or videos for that business. Example: Joes Crab Shack has no videos or photos but is featured. So, when his row is echoed out it will show the Business Name and Business Owner but there will be no data in the photo or video cells thus in the video and photos column it will say No. Otherwise, if the opposite was true, it would say Yes. Here's my pastebin

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  • Problem using DataGridView Control of VB.NET 2008

    - by Tareq
    Hi, I am using VB.NET 2008 based on Framework 3.5 I use a datagridview control on a form and the form's load event as follows: Private Sub frmServiceSettings_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load With dgvFinishedProduct Dim myCombo As New DataGridViewComboBoxColumn ... I generate the combo here from the result of my database .Columns.Add(myCombo) End With End Sub Now when i want to get the data that is set in this column, there is no problem. But if I want to set the data programmatically, there arises problem. How can I solve the problem? If you want more info, please let me know.

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  • SQL Server: position based on marks

    - by Rhys
    I am using SQL Server 2008. I have a Student table in which there are following fields: 1. StudentId, 2. StudentName, 3. Marks . I want to get a resultset in which there should be a column named “Position”. Something like “Select StudentId,StudentName,Marks, as Position from Student...” so that, depending on the marks a student scored, i can evaluate them as the 1st, 2nd or 20th position. If students have the same marks, then they have the same position. Thanks. Rhys

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  • Beginner SQL question: arithmetic with multiple COUNT(*) results

    - by polygenelubricants
    Continuing with the spirit of using the Stack Exchange Data Explorer to learn SQL, (see: Can we become our own “Northwind” for teaching SQL / databases?), I've decided to try to write a query to answer a simple question (on meta): What % of stackoverflow users have over 10,000 rep?. Here's what I've done: Query#1 SELECT COUNT(*) FROM Users WHERE Users.Reputation >= 10000 Result: 556 Query#2 SELECT COUNT(*) FROM USERS Result: 227691 Now, how do I put them together into one query? What is this query idiom called? What do I need to write so I can get, say, a one-row three-column result like this: 556 227691 0,00244190592

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  • vim command to restructure/force text to 80 columns

    - by wickedchicken
    I know there are ways to automatically set the width of text in vim using set textwidth (like http://stackoverflow.com/questions/235439/vim-80-column-layout-concerns). What I am looking for is something similar to = (the indent line command) but to wrap to 80. The use case is sometimes you edit text with textwidth and after joining lines or deleting/adding text it comes out poorly wrapped. Ideally, this command would completely reorganize the lines I select and chop off long lines while adding to short ones. An example: long line is long! short After running the command (assuming the wrap was 13 cols): long line is long! short If this isn't possible with a true vim command, perhaps there is a command-line program which does this that I can pipe the input to?

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