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  • Different values for Time.now when using activerecord

    - by Josué Lima
    I have this weird situation: When I do on rails console Time.now or Time.zone.now I get the same values (suppose they run at the sime time: 2014-06-05 23:38:06 -0300) But when I use Time.now in a query like: Match.where("datetime = ?", Time.now) it returns the time 3 hours ahead! .to_sql output: SELECT `matches`.* FROM `matches` WHERE (datetime = '2014-06-06 02:38:06') any thoughts on that? Rails 4 Mysql 5.5

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  • MySQL ORDER BY rand(), name ASC

    - by Josh K
    I would like to take a database of say, 1000 users and select 20 random ones (ORDER BY rand(),LIMIT 20) then order the resulting set by the names. I came up with the following query which is not working like I hoped. SELECT * FROM users WHERE 1 ORDER BY rand(), name ASC LIMIT 20

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  • SQL-How to retrieve the correct data using php

    - by Programatt
    I am new to SQL so please excuse my question if it is simple. I have a database with a few tables. 1 is a users table, the others are application tables that contain the users preferences for receiving notifications about that application based on the country they are interested in. What I want to do, is retrieve the e-mail address of all users that have an interest in that country. I am struggling to think about how to do this. I currently have the following query constructed, and the code to populate the values function check($string) { if (isset($_POST[$string])) { $print = implode(', ', $_POST[$string]); //Converts an array into a single string $imanageSQLArr = Array(); if (substr_count($print,'Benelux') > 0) { $imanageSQLArr[0] = "checked"; } else { $imanageSQLArr[0] = "off"; } if (substr_count($print, 'France') > 0) { $imanageSQLArr[1] = "checked"; } else { $imanageSQLArr[1] = "off"; } if (substr_count($print, 'Germany') > 0) { $imanageSQLArr[2] = "checked"; } else { $imanageSQLArr[2] = "off"; } if (substr_count($print, 'Italy') > 0) { $imanageSQLArr[3] = "checked"; } else { $imanageSQLArr[3] = "off"; } if (substr_count($print, 'Netherlands') > 0) { $imanageSQLArr[4] = "checked"; } else { $imanageSQLArr[4] = "off"; } if (substr_count($print, 'Portugal') > 0) { $imanageSQLArr[5] = "checked"; } else { $imanageSQLArr[5] = "off"; } if (substr_count($print, 'Spain') > 0) { $imanageSQLArr[6] = "checked"; } else { $imanageSQLArr[6] = "off"; } if (substr_count($print, 'Sweden') > 0) { $imanageSQLArr[7] = "checked"; } else { $imanageSQLArr[7] = "off"; } if (substr_count($print, 'Switzerland') > 0) { $imanageSQLArr[8] = "checked"; } else { $imanageSQLArr[8] = "off"; } if (substr_count($print, 'UK') > 0) { $imanageSQLArr[9] = "checked"; } else { $imanageSQLArr[9] = "off"; } and the query $tocheck = $db->prepare( "SELECT users.email FROM users,app WHERE users.id=app.userid AND BENELUX=:BENELUX AND FRANCE=:FRANCE AND GERMANY=:GERMANY AND ITALY=:ITALY AND NETHERLANDS=:NETHERLANDS AND PORTUGAL=:PORTUGAL AND SPAIN=:SPAIN AND SWEDEN=:SWEDEN AND SWITZERLAND=:SWITZERLAND AND UK=:UK"); $tocheck->execute($country); $row = $tocheck->fetchAll(); This does retrieve data, but only people who's preferences match EXACTLY what is put (so what they haven't selected is taken into account as much as what they have). Any help would be greatly appreciated.

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  • How do I write object classes effectively when dealing with table joins?

    - by Chris
    I should start by saying I'm not now, nor do I have any delusions I'll ever be a professional programmer so most of my skills have been learned from experience very much as a hobby. I learned PHP as it seemed a good simple introduction in certain areas and it allowed me to design simple web applications. When I learned about objects, classes etc the tutor's basic examnples covered the idea that as a rule of thumb each database table should have its own class. While that worked well for the photo gallery project we wrote, as it had very simple mysql queries, it's not working so well now my projects are getting more complex. If I require data from two separate tables which require a table join I've instead been ignoring the class altogether and handling it on a case by case basis, OR, even worse been combining some of the data into the class and the rest as a separate entity and doing two queries, which to me seems inefficient. As an example, when viewing content on a forum I wrote, if you view a thread, I retrieve data from the threads table, the posts table and the user table. The queries from the user and posts table are retrieved via a join and not instantiated as an object, whereas the thread data is called using my Threads class. So how do I get from my current state of affairs to something a little less 'stupid', for want of a better word. Right now I have a DB class that deals with connection and escaping values etc, a parent db query class that deals with the common queries and methods, and all of the other classes (Thread, Upload, Session, Photo and ones thats aren't used Post, User etc ) are children of that. Do I make a big posts class that has the relevant extra attributes that I retrieve from the users (and potentially threads) table? Do I have separate classes that populate each of their relevant attributes with a single query? If so how do I do that? Because of the way my classes are written, based on what I was taught, my db update row method, or insert method both just take the attributes as an array and update all of that, if I have extra attributes from other db tables in each class then how do I rewrite those methods as obbiously updating automatically like that would result in errors? In short I think my understanding is limited right now and I'd like some pointers when it comes to the fundamentals of how to write more complex classes.

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  • php date will not insert into mysql database

    - by Piers Blinco
    this is a strange one. I have a date, that is converted to mm-dd-yyyy when posting it to mysql i have re-ordered it to yyyy-mm-dd but yet it still will not insert $date = date("Y-m-d", strtotime($_POST['leaving_date']) ); any advice? Cheers EDIT The actual query: mysql_query("INSERT INTO booking_info (customer_id, booking_ref, date_of_travel) VALUES (".mysql_real_escape_string($_POST['customer_id']).", ".mysql_real_escape_string($rnd).", ".mysql_real_escape_string($date).")");

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  • Stateless NHibernate for querying

    - by JontyMC
    We have a database that is updated via a background process. We are using NHibernate to query the data for display on the web UI, so we don't need change tracking or lazy-loading. If we mark all the mappings as mutable="false", is this the same as using a stateless session?

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  • SQL not yielding expected results

    - by AnonJr
    I have three tables related to this particular query: Lawson_Employees: LawsonID (pk), LastName, FirstName, AccCode (numeric) Lawson_DeptInfo: AccCode (pk), AccCode2 (don't ask, HR set up), DisplayName tblExpirationDates: EmpID (pk), ACLS (date), EP (date), CPR (date), CPR_Imported (date), PALS (date), Note The goal is to get the data I need to report on all those who have already expired in one or more certification, or are going to expire in the next 90 days. Some important notes: This is being run as part of a vbScript, so the 90-day date is being calculated when the script is run. I'm using 2010-08-31 as a placeholder since its the result at the time this question is being posted. All cards expire at the end of the month. (which is why the above date is for the end of August and not 90 days on the dot) A valid EP card supersedes ACLS certification, but only the latter is required of some employees. (wasn't going to worry about it until I got this question answered, but if I can get the help I'll take it) The CPR column contains the expiration date for the last class they took with us. (NULL if they didn't take any classes with us) The CPR_Imported column contains the expiration date for the last class they took somewhere else. (NULL if they didn't take it elsewhere, and bravo for following policy) The distinction between CPR classes is important for other reports. For purposes of this report, all we really care about is which one is the most current - or at least is currently current. If I have to, I'll ignore ACLS and PALS for the time being as it is non-compliance with CPR training that is the big issue at the moment. (not that the others won't be, but they weren't mentioned in the last meeting...) Here's the query I have so far, which is giving me good data: SELECT iEmp.LawsonID, iEmp.LastName, iEmp.FirstName, dept.AccCode2, dept.DisplayName, Exp.ACLS, Exp.EP, Exp.CPR, Exp.CPR_Imported, Exp.PALS, Exp.Note FROM (Lawson_Employees AS iEmp LEFT JOIN Lawson_DeptInfo AS dept ON dept.AccCode = iEmp.AccCode) LEFT JOIN tblExpirationDates AS Exp ON iEmp.LawsonID = Exp.EmpID WHERE iEmp.CurrentEmp = 1 AND ((Exp.ACLS <= #2010-08-31# AND Exp.ACLS IS NOT NULL) OR (Exp.CPR <= #2010-08-31# AND Exp.CPR_Imported <= #2010-08-31#) OR (Exp.PALS <= #2010-08-31# AND Exp.PALS IS NOT NULL)) ORDER BY dept.AccCode2, iEmp.LastName, iEmp.FirstName; After perusing the result set, I think I'm missing some expiration dates that should be in the result set. Am I missing something? This is the sucky part of being the only developer in the department... no one to ask for a little help.

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  • Java JTextArea Bold

    - by ikurtz
    This is an exploratory query. I am wondering if the following is possible with JTextArea? Can I alter the text to bold (append text) and then back to normal and will it only display the bold text in bold and the rest as normal? Also can the contents of JTextArea be saved as a RTF document? Thank you.

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  • SQL how to avoid duplicate insert in a table

    - by user1624531
    how to avoid duplicate insert in a table? I use below query to insert in to table: insert into RefundDetails(ID,StatusModified,RefundAmount,OrderNumber) select O.id,O.StatusModified,OI.RefundAmount,O.OrderNumber from Monsoon.dbo.[Order] as O WITH (NOLOCK) JOIN Monsoon.dbo.OrderItem as OI WITH (NOLOCK)on O.Id = OI.OrderId WHERE o.ID in (SELECT OrderID FROM Mon2QB.dbo.monQB_OrderActivityView WHERE ACTIVITYTYPE = 4 AND at BETWEEN '10/30/2012' AND '11/3/2012') AND (O.StatusModified < '11/3/2012')

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  • Online Database

    - by Narancha
    Hello! I want to write an application that reads blogpost from the internet and then present in my own way. The blogposts are stored in databases, so I figured that the only thing I had to do was to query an online database for the posts that I want to show.. But I can´t find a way to opoen a connecion to an online database... anyone out there with a solution to my problem? //Narancha

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  • JOIN in SQL with one-to-many relationship

    - by Kristopher Ives
    I'm making a tool to track calls to house/senate reps, and I have 2 tables of importance here: reps rep_id rep_name # and more info comments rep_id status # enum about result of contact comment I want to query for all reps joining the most recent associated comments and in some cases joining comments of a specific status, but there might not be any comments associated with that rep yet. THANKS!

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  • Assigining ID vs object - linq to sql

    - by jess
    Say, I have an entity Customer which has relationship with city,order etc.Now,when I am adding a customer object,should I assign customer.cityid, or customer.city? Now,from form I get cityid from dropdown,to assign city object,I will have to make a query using id selected.

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  • Escaping comma in java

    - by prasanna
    I have a string which is fed into the query as IN clause,which looks like this ('ACT','INACT') which is one of the parameters to a function inside a package.when a call is made to the function from java, it looks like this call package.function(1,2,3,('ACT','INACT'),4,5). When the package is called,i get error as wrong type of arguments. It is taking the values inside brackets as different values delimited by strings

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  • Why doesn't SQL LIKE work in Microsoft Access?

    - by poo
    I want to my make a search-statement and query things like this select * from table where col like '%vkvk%' But with trial and error I've come to the conclusion that access doesn't work with LIKE or wildcard operators. Does anybody have some other solutions because I ain't so in to access actually, so I really don't know.

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  • "Could not load" error whenever I click a work item.

    - by Mohammadreza
    I have recently installed Team Explorer on one of my machines that has Visual Studio 2008 SP1 installed. But know whenever I click a work item or trying to open a team query I get the following error: Could not load type 'Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItemTypeDeniedOrNotExistException' from assembly 'Microsoft.TeamFoundation.WorkItemTracking.Client, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' I even repaired the installation of Team Explorer 2008 but it does not solve my problem. Does anybody know how can I get rid of this error? Thanks.

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  • When to use which search technique in Sharepoint development?

    - by Lalit
    When I have to use KeywordSearchQuery, when should I use FullTextSearchQuery and when should I use Query in developing the search part in Visual Studio for a Sharepoint site? I want to search information from Contact list. If any keyword is put in the search box, I wan related information in our own specified format. Which technique should I use?

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