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  • Custom object based on database table

    - by Archangel
    Suppose that I have a database query which looks like below - select name, gender, birthday from person where person_id = 1; When this query is executed, some records from the database are returned. I want to make a custom object which will contain the exact attributes as the column names, with the corresponding values. As an example, suppose that the object is X. So it will have three attributes which are X.name, X.gender and X.birthday, with the corresponding values from the records. Is it doable in PHP? If so, then how?

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  • Two entities with @ManyToOne joins the same table

    - by Ivan Yatskevich
    I have the following entities Student @Entity public class Student implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; //getter and setter for id } Teacher @Entity public class Teacher implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; //getter and setter for id } Task @Entity public class Task implements Serializable { @Id @GeneratedValue(strategy = GenerationType.AUTO) private Long id; @ManyToOne(optional = false) @JoinTable(name = "student_task", inverseJoinColumns = { @JoinColumn(name = "student_id") }) private Student author; @ManyToOne(optional = false) @JoinTable(name = "student_task", inverseJoinColumns = { @JoinColumn(name = "teacher_id") }) private Teacher curator; //getters and setters } Consider that author and curator are already stored in DB and both are in the attached state. I'm trying to persist my Task: Task task = new Task(); task.setAuthor(author); task.setCurator(curator); entityManager.persist(task); Hibernate executes the following SQL: insert into student_task (teacher_id, id) values (?, ?) which, of course, leads to null value in column "student_id" violates not-null constraint Can anyone explain this issue and possible ways to resolve it?

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  • How do I workaround this error ? You can't specify target table my table for update in FROM clause

    - by Jules
    I'm struggling to convert my select query into a update query, it has aliases.. Update pads set RemoveMeDate = '1999-01-01 00:00:00' where padid in ( SELECT old_table.padid FROM `jules-fix-reasons`.`pads` AS old_table JOIN `jules`.`pads` AS new_table ON old_table.padid = new_table.`PadID` WHERE new_table.RemoveMeDate <> '2001-01-01 00:00:00' AND old_table.RemoveMeDate = '2001-01-01 00:00:00') I've tried removing the aliases, but that doesn't help :(

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  • Multi table Triggers SQL Server noob

    - by Chin
    I have a load of tables all with the same 2 datetime columns (lastModDate, dateAdded). I am wondering if I can set up global Insert Update trigger for these tables to set the datetime values. Or if not, what approaches are there? Any pointers much appreciated

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  • MySQL: 4 Table "has-many-through" Join?

    - by Nebs
    Let's say I have the following 4 tables (for examples' sake): Owners, Trucks, Boxes, Apples. An owner can have many trucks, a truck can have many boxes and a box can have many apples. Owners have an id. Trucks have an id and owner_id. Boxes have an id and truck_id. Apples have an id and box_id. Let's say I want to get all the apples "owned" by an owner with id = 34. So I want to get all the boxes that are in boxes that are in trucks that owner 34 owns. There is a "hierarchy" if you will of 4 tables that each only has reference to its direct "parent". How can I quickly filter boxes while satisfying conditions across the other 3 tables? I hope that made sense somewhat. Thanks.

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  • NHibernateUtil.Initialize and Table where clause (Soft Delete)

    - by Pascal
    We are using NHibernate but sometimes manually load proxies using the NHibernateUtil.Initialize call. We also employ soft delete and have a "where" condition on all our mapping to tables. SQL generated by NHibernate successfully adds the where condition (i.e. DELETED IS NULL) however we notice that NHibernateUtil.Initialize does not observe the constraints of the mapping files. i.e. None of the SQL generated by NHibernateUtil.Initialize observes our DELETED IS NULL condition. Is there something we're missing as we would really like to employ manual loading of some entity collections when the situation demands it. We are using FluentNhibernate for our mapping.

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  • Zend Framework Relations vs. Table Select

    - by rtmilker
    Hey! I just want to know your guys opinion on using join tables within the zend framework. Of course you can use relations by defining a referenceMap and dependentTables and stuff, or using setIntegrityCheck(false) within a db select(). The setIntegrityCheck version seems a little bit dirty to me, but the other version is not very suitable for big querys and joining many tables... I'm a PHP developer for 5 years now and new to the zend framework and just want get a direction for my first project. Thanks!!!

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  • javascript traversing table

    - by user234194
    If I have a certain code, How do I traverse or get to the button(i.e type == INPUT) in JavaScript. <td> <div> <script></script> <script></script> <script></script> <input type="button"....../> </div></td> I tried doing: var cell = row.cells[0]; if (cell) { var btn1 = cell.firstChild; alert(btn.tagName.toUpperCase()); this resulted "DIV", and var cell = row.cells[0]; if (cell) { var btn = btn1.firstChild; alert(btn.tagName.toUpperCase()); this resulted "SCRIPT" But doing same (i.e firstChild ) , I could not succeed. Any help is appreciated. Thanks

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  • Newbie question attribute from associated table not showing up in index view

    - by Lauren
    Hi I know this is something simple I am doing wrong. I have three tables, installation, neighborhood, schools Installation: has_many :schools has_many :neighborhoods Neighborhood: has_many :installations has_many :schools Schools: belongs_to :installations belongs_to :neighborhoods I can't figure out how to show the name of the neighborhood the school is located in on the index view. I can get it to show on the show view once I have the school id. But on the index view I can't figure out what to put in the controller that will allow me to access the neighborhood name from the neighborhood_id that is in the School model. I am sure this is so easy and I am screwing up something stupid. HELP!

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  • Iphone xcode simulator crashes when I move up and down on a table row

    - by Frames84
    I can't get my head round this. When the page loads, everything works fine - I can drill up and down, however 'stream' (in the position I have highlighted below) becomes not equal to anything when I pull up and down on the tableview. But the error is only sometimes. Normally it returns key/pairs. If know one can understand above how to you test for // (int)[$VAR count]} key/value pairs in a NSMutableDictionary object - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *FirstLevelCell = @"FirstLevelCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:FirstLevelCell]; if(cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:FirstLevelCell] autorelease]; } NSInteger row = [indexPath row]; //NSDictionary *stream = (NSDictionary *) [dataList objectAtIndex:row]; NSString *level = self.atLevel; if([level isEqualToString:@"level2"]) { NSMutableDictionary *stream = [[NSMutableArray alloc] init]; stream = (NSMutableDictionary *) [dataList objectAtIndex:row]; // stream value is (int)[$VAR count]} key/value pairs if ([stream valueForKey:@"title"] ) { cell.textLabel.text = [stream valueForKey:@"title"]; cell.textLabel.numberOfLines = 2; cell.textLabel.font =[UIFont systemFontOfSize:10]; NSString *detailText = [stream valueForKey:@"created"]; cell.detailTextLabel.numberOfLines = 2; cell.detailTextLabel.font= [UIFont systemFontOfSize:9]; cell.detailTextLabel.text = detailText; NSString *str = @"http://www.mywebsite.co.uk/images/stories/Cimex.jpg"; NSData *imageURL = [[NSData alloc] initWithContentsOfURL:[NSURL URLWithString:str]]; UIImage *newsImage = [[UIImage alloc] initWithData:imageURL]; cell.imageView.image = newsImage; [stream release]; } } else { cell.textLabel.text = [dataList objectAtIndex:row]; } return cell; } Thanks for your time

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  • [LaTeX] positions of page numbers, position of chapter headings, chapters AND Table of Contents, Ref

    - by kaikanmonaco
    I am writing my PhD thesis (120+ pages) in latex, the deadline is approaching and I am struggling with layout problems. I am using the documentstyle book. I am posting both problems in this one thread because I am not sure if the solution might be related to both problems or not. Problems are: 1.) The page numbers are mostly located on the top-right of each page (this is correct and where I want them to be). However, only on the first page of chapters and on the first page of what I call "special chapters", the page number is located bottom-centered. With "special chapters" I mean: List of Contents, List of Figures, List of Tables, References, Index. My university will not accept the thesis like this. The page number must ALWAYS be top-right one each page, even if the page is the first page of a chapter or the first page of something like the List of Contents. How can I fix this? 2.) On the first page of chapters and "special chapters" (List of Contents...), the chapter title is located far too low on the page. This is the standard layout of LaTeX with documentstyle book I think. However, the chapter title must start at the very top of the page! I.e. the same height as the normal text on the pages that follow. I mean the chapter title, not the header. I.e., if there is a chapter called "Chapter 1 Dynamics of foobar under mechanical stress" then that text has to start from the top the page, but right now it starts several centimeters below the top. How can I fix this? Have tried all kinds of things to no effect, I'd be very thankful for a solution! Thanks.

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  • Join unrelated tables through a second level connected table

    - by Andy M
    Hello! I have two tables of activities on a page: Views & Comments. Views id timestamp project_id user_id page_id Comments id timestamp project_id user_id page_id comment Pages id project_id title Now pages are related to projects: Projects id account_id title I am trying to create a summary page that combines views and comments ordered by time (so that the most recent views/comments are at the beginning, grouped by projects. Also, only projects for a specific account. So the result could potentially be: Project 1 View 5 (June 20th) View 4 (June 18th) Comment 5 (June 15th) Comment 4 (June 14th) Comment 3 (June 12th) Project 3 View 3 (June 10th) View 2 (June 8th) Comment 2 (June 7th) Project 2 View 1 (June 5th) Comment 1 (June 4th) If you could help with how to do this using SQL (or even doctrine) that would be awesome. Thank you.

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  • A column of a table needs to stay in one line (HTML/CSS/Javascript)

    - by Julien
    Hi Folks ! So I am having an issue on my entrepreneur business opportunity rating matrix : I would like the radio buttons to stay on the same line. The problem is that I don't know how I should process because if I give a fixed minimum width for the cell, i'm not sure it will display properly on other browsers, and if the cell is to big I loose the alignment of the radio buttons. Do you guys have a CSS/Javascript (jQuery) trick that would fix this ? Thank you

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  • SQL with HAVING and temp table not working in Rails

    - by chrisrbailey
    I can't get the following SQL query to work quite right in Rails. It runs, but it fails to do the "HAVING row_number = 1" part, so I'm getting all the records, instead of just the first record from each group. A quick description of the query: it is finding hotel deals with various criteria, and in particular, priortizing them being paid, and then picking the one with the highest dealrank. So, if there are paid deal(s), it'll take the highest one of those (by dealrank) first, if no paid deals, it takes the highest dealrank unpaid deal for each hotel. Using MAX(dealrank) or something similar does not work as a way to pick off the first row of each hotel group, which is why I have the enclosing temptable and the creation of the row_number column. Here's the query: SELECT *, @num := if(@hid = hotel_id, @num + 1, 1) as row_number, @hid := hotel_id as dummy FROM ( SELECT hotel_deals.*, affiliates.cpc, (CASE when affiliates.cpc 0 then 1 else 0 end) AS paid FROM hotel_deals INNER JOIN hotels ON hotels.id = hotel_deals.hotel_id LEFT OUTER JOIN affiliates ON affiliates.id = hotel_deals.affiliate_id WHERE ((hotel_deals.percent_savings = 0) AND (hotel_deals.booking_deadline = ?)) GROUP BY hotel_deals.hotel_id, paid DESC, hotel_deals.dealrank ASC) temptable HAVING row_number = 1 I'm currently using Rails' find_by_sql to do this, although I've also tried putting it into a regular find using the :select, :from, and :having parts (but :having won't get used unless you have a :group as well). If there is a different way to write this query, that'd be good to know too. I am using Rails 2.3.5, MySQL 5.0.x.

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  • Select all rows where there is not a specific value in a different table

    - by JMC Creative
    This is a wordpress installation, but I think the question is more of a general sql question. First off, my sql skills are not great (I don't even know if I'm following the correct format for illustrating the db). I've got two tables: wp_posts : ID (pk) | post_name | ... ---------------------------- 45 | "Hello" 91 | "Funny" 16 | "Wheat" wp_postmeta : post_id (fk) | meta_key | meta_value | ... ------------------------------------------------ 45 | "_edit_lock" | 5789789834 45 | "fizzbizz" | "foobar" 91 | "_something" | "teve" 16 | "_edit_lock" | 8798756 I would to select all rows in wp_posts where there is NO corresponding row in wp_postmeta where meta_key = "fizzbizz" I originally had this query, but someone pointed out that it would not retrive ID = '16' in the above case. How would I correctly write the query? $pageposts = $wpdb->get_results(" SELECT * FROM wp_posts p JOIN wp_postmeta m ON p.ID = m.post_id WHERE m.meta_key <> 'fizzbizz' ORDER BY p.post_date DESC; ");

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  • format - Help with printing a table

    - by Michael Kohl
    This question will probably end in a facepalm, but I've tried for a while and am still stuck despite reading through the hyperspec. Basically what I want to do is something like (format t "~{|~{ ~5d~}|~%~}" '((1 23 2 312) (23 456 1 7890))) but instead of hard-coding the 5 it should be calculated from the list (length of longest element from any nested list + 1) to give something like | 1 23 2 312| | 23 456 1 7890| Maybe I'm thinking way too complicated here and there is an easier way to do what I want, but I think I ran myself into a mental corner that I can't get out of.

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  • T-SQL: how to sort table rows based on 2 columns

    - by Criss Nautilus
    I'm quite stuck with this problem for sometime now.. How do I sort column A depending on the contents of Column B? I have this sample: ID count columnA ColumnB 12 1 A B 13 2 C D 14 3 B C I want to sort it like this: ID count ColumnA ColumnB 12 1 A B 14 3 B C 13 2 C D so I need to sort the rows if the previous row of ColumnB = the next row of ColumnA I'm thinking a loop? but can't quite imagine how it will work... I was thinking it will go like this (maybe) SELECT a.ID, a.ColumnA, a.ColumnB FROM TableA WITH a (NOLOCK) LEFT JOIN TableA b WITH (NOLOCK) ON a.ID = b.ID and a.counts = b.counts Where a.columnB = b.ColumnA the above code isn't working though and I was thinking more on the lines of... DECLARE @counts int = 1 DECLARE @done int = 0 --WHILE @done = 0 BEGIN SELECT a.ID, a.ColumnA, a.ColumnB FROM TableA WITH a (NOLOCK) LEFT JOIN TableA b WITH (NOLOCK) ON a.ID = b.ID and a.counts = @counts Where a.columnB = b.ColumnA set @count = @count +1 END If this was a C code, would be easier for me but t-sql's syntax is making it a bit harder for a noobie like me.

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  • Queries stuck in "copying to tmp table"

    - by Parik
    I am running some sample tests against mysql, and finding that there are a bunch of queries which are stuck in "copying to tmp tables". They remain stuck in the same state. They are usually aggregate queries and I can kill those queries. But how can I find out what is causing them to be stuck? I am using mysql 5.1.42 with the innodb plugin.

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  • Can't update date in aspx to a MS-ACCESS table

    - by Bjork
    Hello I'm having problem with updating datatypes I insert the date in the C# part like this string strSQL = "INSERT into Frettir (CreatedBy,CreatedOn,Title,Description,Starts,Ends,CatId,SectionId,ArticleExt,Myndatexti,MyndUrAlbumi,NrMyndar) values(?,?,?,?,?,?,?,?,?,?,?,?)"; cmd.Parameters.Add("@Starts",OleDbType.Date).Value = dstartdate; but I update in the aspx part like this UpdateCommand="UPDATE [Frettir] SET [Title]=@Title,[Description]=@Description,[CreatedBy]=@notandaID,[ArticleExt]=@ArticleExt, [Myndatexti]=@Myndatexti,[Starts]=@Starts WHERE [ArticleID]=@id2 " I get an error Data type mismatch in criteria expression It seems that there are some type differences between the type that is input in the c# part and the aspx-part Can anyone help me with this?

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  • Date/time query from Access table ( last month)

    - by chupeman
    Hello, I am using the query builder from Visual Studio 2008 to extract data from an Access mdb ( 2003), but I can't make it to work with a datetime field. When I run it with a third party query app I have works fine, but when I try to implement it into visual studio I can't do it. What is the correct way to extract last month data? This is what I have: SELECT [Datos].[ID], [Datos].[E-mail Address], [Datos].[ZIP/Postal Code], [Datos].[Store], [Datos].[date], [Datos].[gender], [Datos].[age] FROM [Datos] WHERE ([Datos].[date] =<|Last month|>) Any help is appreciated. Thank you

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  • Does Oracle re-hash the driving table for each join on the same table columns?

    - by thecoop
    Say you've got the following query on 9i: SELECT /*+ USE_HASH(t2 t3) */ * FROM table1 t1 -- this has lots of rows LEFT JOIN table2 t2 ON t1.col1 = t2.col1 AND t1.col2 = t2.col2 LEFT JOIN table3 t3 ON t1.col1 = t3.col1 AND t1.col2 = t3.col2 Due to 9i not having RIGHT OUTER HASH JOIN, it needs to hash table1 for both joins. Does it re-hash table1 between joining t2 and t3 (even though it's using the same join columns), or does it keep the same hash information for both joins?

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