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• How to validate Login Details using Google apps API ?

  - by Pari

  Hi, I am using below code to to create Contact Service and to Validate login Details: ContactsService obj_ContactService = new ContactsService(""); obj_ContactService.setUserCredentials(userEmail, password); But even if user enters invalid detail above code does not throw any exception. User get verified only when i call "Insert" query after adding whole contact details. But in my application i want to notify user immediately after user enters login details. Thanx

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• Is there a way to combine IN and LIKE in MySQL?

  - by abeger

  I'm currently running a query like this: SELECT * FROM email WHERE email_address LIKE 'ajones@%' OR email_address LIKE 'bsmith@%' OR email_address LIKE 'cjohnson@%' The large number of OR's bothers me. Is there a way to condense this up with something akin to an IN operator, e.g.: SELECT * FROM email WHERE email_address LIKE ('ajones@%', 'bsmith@%', 'cjohnson@%') Or is this just wishful thinking?

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• Django: Sum on an date attribute grouped by month/year

  - by Sébastien Piquemal

  Hello, I'd like to put this query from SQL to Django: "select date_format(date, '%Y-%m') as month, sum(quantity) as hours from hourentries group by date_format(date, '%Y-%m') order by date;" The part that causes problem is to group by month when aggregating. I tried this (which seemed logical), but it didn't work : HourEntries.objects.order_by("date").values("date__month").aggregate(Sum("quantity"))

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• Help With LINQ: Mixed Joins and Specifying Default Values

  - by Corey O.

  I am trying to figure out how to do a mixed-join in LINQ with specific access to 2 LINQ objects. Here is an example of how the actual TSQL query might look: SELECT * FROM [User] AS [a] INNER JOIN [GroupUser] AS [b] ON [a].[UserID] = [b].[UserID] INNER JOIN [Group] AS [c] ON [b].[GroupID] = [c].[GroupID] LEFT JOIN [GroupEntries] AS [d] ON [a].[GroupID] = [d].[GroupID] WHERE [a].[UserID] = @UserID At the end, basically what I would like is an enumerable object full of GroupEntry objects. What am interested is the last two tables/objects in this query. I will be displaying Groups as a group header, and all of the Entries underneath their group heading. If there are no entries for a group, I still want to see that group as a header without any entries. Here's what I have so far: So from that I'd like to make a function: public void DisplayEntriesByUser(int user_id) { MyDataContext db = new MyDataContext(); IEnumberable<GroupEntries> entries = ( from user in db.Users where user.UserID == user_id join group_user in db.GroupUsers on user.UserID = group_user.UserID into a from join1 in a join group in db.Groups on join1.GroupID equals group.GroupID into b from join2 in b join entry in db.Entries.DefaultIfEmpty() on join2.GroupID equals entry.GroupID select entry ); Group last_group_id = 0; foreach(GroupEntry entry in entries) { if (last_group_id == 0 || entry.GroupID != last_group_id) { last_group_id = entry.GroupID; System.Console.WriteLine("---{0}---", entry.Group.GroupName.ToString().ToUpper()); } if (entry.EntryID) { System.Console.WriteLine(" {0}: {1}", entry.Title, entry.Text); } } } The example above does not work quite as expected. There are 2 problems that I have not been able to solve: I still seem to be getting an INNER JOIN instead of a LEFT JOIN on the last join. I am not getting any empty results, so groups without entries do not appear. I need to figure out a way so that I can fill in the default values for blank sets of entries. That is, if there is a group without an entry, I would like to have a mostly blank entry returned, except that I'd want the EntryID to be null or 0, the GroupID to be that of of the empty group that it represents, and I'd need a handle on the entry.Group object (i.e. it's parent, empty Group object). Any help on this would be greatly appreciated. Note: Table names and real-world representation were derived purely for this example, but their relations simplify what I'm trying to do.

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• .Net Remote Log Querying

  - by jlafay

  I have a Win Service that I'm working on that consists of the service, WF Service (using WorkflowServiceHost), a Workflow (WorkflowApplication) that queries/processes data from a SQL Server DB, and a Comm Marshall class that handles data flow between the service and the WF. The WF does a lot of heavy data processing and the original app (early VB6) logged all the processing and displayed the results on the screen of the host machine. Critical events will be committed to eventlog because I strongly believe that should be common practice because admins naturally will look there and because it already has support for remote viewing. The workflow will also need to write logging events as it processes and iterates according to our business logic. Such as: records queried, records returned, processed records, etc. The data is very critical and we need to log actions as they occur. The logs are currently kept as text files on disk and I think that is ok. Ideally I would like to record log events in XML so it's easier to query and because it is less costly than a DB, especially since our DB servers do a lot of heavy processing anyways. Since we are replacing essentially a VB6 application with a robust windows service (taking advantage of WF 4.0), it has been requested that a remote client also be created. It receives callbacks from the service after subscribing to it and being added to a collection of subscribers. Basic statistics and summaries are updated client side after receiving basic monitoring data of what is going on with the service. We would like to also provide a way to provide details when we need to examine what is going on further because this is a long running data processing service and issues need to be addressed immediately. What is the best way to implement some type of query from the client that is sent to the service and returned to the client? Would it be efficient to implement another method to expose on the service and then have that pass that off to some querying class/object to examine the XML files by whichever specification and then return it to the client? That's the main concern. I don't want the service to processing to bottleneck much while this occurs. It seems that WF already auto-magically threads well for the most part but I want to make sure this is the right way to go about it. Any suggestions/recommendations on how to architect and implement a small log querying framework for a remote service would be awesome.

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• mysql custom sorting first alpha then numeric using case when

  - by Nizzy

  How can you sort a query using ORDER BY CASE WHEN REGEXP? or other alternatives? I don't want to use UNION. Thank you mysql> SELECT `floor_id`, `floor_number` FROM `floors`; +----------+--------------+ | floor_id | floor_number | +----------+--------------+ | 1 | 4 | | 2 | 7 | | 3 | G | | 4 | 19 | | 5 | B | | 6 | 3 | | 7 | A | +----------+--------------+ Expected result: +----------+--------------+ | floor_id | floor_number | +----------+--------------+ | 7 | A | | 5 | B | | 3 | G | | 6 | 3 | | 1 | 4 | | 2 | 7 | | 4 | 19 | +----------+--------------+

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• How to get all the descendants of a given instance of a model in google app engine?

  - by M.A. Cape

  Using parent child relationship where a parent can have children while each child has only one parent, does using Children.all().ancestor(parent.key) a good solution where a child is constructed by setting parent=parent.key in the constructor? Is the 1000 limit applies with this kind of query?

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• Is it possible to simulate TMenuBreak functionality with Dev Express TdxBarSubItems?

  - by mcmar

  In my application I'm dynamically adding new TdxBarSubItems based off of a SQL query. In some cases the result set is rather large so the menu fills the entire screen and sometimes has a down arrow to scroll the list. In a previous version of the code before switching to Dev Express, I was able to add TMenuBreak objects to make the list divide into columns. Is there a way to do this with Dev Express components?

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• iPhone Localization - Get the phone's country/language code?

  - by John Frankes

  I'm localizing my iPhone app for multiple languages, and in addition to changing some of the strings I need to change some backgrounds. Is it possible to query the iPhone and get the user's language code? Thanks!

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• Djangoo Foreign key queries

  - by Hulk

  In the following model: class header(models.Model): title = models.CharField(max_length = 255) created_by = models.CharField(max_length = 255) def __unicode__(self): return self.id() class criteria(models.Model): details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() class options(models.Model): opt_details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() If there is a row in the database for table header as Id=1, title=value-mart , createdby=CEO How do i query criteria and options tables to get all the values related to header table id=1 Also can some one please suggest a good link for queries examples, Thanks..

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• Django left join m2m field.

  - by duder

  Here's my Model: class User(models.Model): pass class Item(models.Model): pass class ItemVote(models.Model): user = models.ForeignKey(User) item = models.ForeignKey(Item) vote = models.BooleanField() I want to retrieve a list of Items, and I want to know if the current user has voted for each Item. How do I alter my query object so that it will generate sql similar to: SELECT ... FROM items LEFT OUTER JOIN item_votes ON (item_votes.user_id = ? AND item_votes.item_id = items.id)

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• How does contains() in PL-SQL works?

  - by Artic

  Have a lot of unnecessary results using contains() method in my query. Don't tell me to use like or something else. It is hardcoded and couldn't be changed.

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• Bizarre WHERE col = NULL behavior

  - by Kenneth

  This is a problem one of our developers brought to me. He stumbled across an old stored procedure which used 'WHERE col = NULL' several times. When the stored procedure is executed it returns data. If the query inside the stored procedure is executed manually it will not return data unless the 'WHERE col = NULL' references are changed to 'WHERE col IS NULL'. Can anyone explain this behavior?

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• Insert the lowest possible unique positve integer in an atomic fashion in MySql

  - by Jason Christa

  Say I have a table with a unique positive integer field. I currently have rows with id's of [1, 2, 3, 4, 5, 8, 12, 35]. Is there a insert query that I could write that would assign the id field to the lowest unique positive integer (in this case 6)? It would have to do this atomically so there isn't the possibility of concurrent inserts wiping out each other or failing.

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• Add SET QUERY_GOVERNOR_COST_LIMIT with Linq to Entities

  - by boris callens

  I'm in a situation where I want to add the equivalent of the sql statement SET QUERY_GOVERNOR_COST_LIMIT to my query I created with linq to entities. How would I go about that?

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• MySql Join using 4 tables

  - by Ionut Flavius Pogacian

  I have 4 tables and i want to join them and extarct 4 values. I wrote the followig MySql Query, but it does not work. select `a`.`id`,`a`.`page` xpage,`a`.`action`, `b`.`header` xheader, `b`.`page_id`, `c`.`content` xcontent,`b`.`page_id`, `d`.`footer` xfooter,`d`.`page_id` join `header` b on `a`.`id`=`b`.`page_id` join `content` c on `a`.`id`=`c`.`page_id` and `a`.`id`=`d`.`page_id` join `footer` d on `a`.`id`=`d`.`page_id` where `a`.`page`='main'

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• MYSQL: Pull Only Words with Minimum Character length

  - by elmaso

  Hi, how can I pull only words with maximum 50 Characters from MYSQL? $query = "SELECT * FROM example ORDER BY ID DESC LIMIT 200";

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• Mongodb querying for multiple parameters

  - by gaggina

  I've this collections { "name" : "montalto", "users" : [ { "username" : "ciccio", "email" : "aaaaaaaa", "password" : "aaaaaaaa", "money" : 0 } ], "numers" : "8", "_id" : ObjectId("5040d3fded299bf03a000002") } If I want to search for a collection with the name of montalto and a user named ciccio I'm using the following query: db.coll.find({name:'montalto', users:{username:'ciccio'}}).count() But it does not work. Where I went wrong?

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• How to save byte[] to varbinary(64) field in database

  - by shamim

  I have byte[] a = HashEncrypt("a"); with public byte[] HashEncrypt(string password) { SHA512Managed sha = new SHA512Managed(); byte[] hash = sha.ComputeHash(UnicodeEncoding.Unicode.GetBytes(password)); return hash; } I want to save byte[] a to my database. My database field is a varbinary(64). I'm using SQL Server 2008. I want to know the insert query with C# code. I am using ADO.NET

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• Inserting checkbox values

  - by rabeea

  hey i have registration form that has checkboxes along with other fields. i cant insert the selected checkbox values into the data base. i have made one field in the database for storing all checked values. this is the code for checkbox part in the form: Websites, IT and Software Writing and Content <pre><input type="checkbox" name="expertise[]" value="Design and Media"> Design and Media <input type="checkbox" name="expertise[]" value="Data entry and Admin"> Data entry and Admin </pre> <pre><input type="checkbox" name="expertise[]" value="Engineering and Skills"> Engineering and Science <input type="checkbox" name="expertise[]" value="Seles and Marketing"> Sales and Marketing </pre> <pre><input type="checkbox" name="expertise[]" value="Business and Accounting"> Business and Accounting <input type="checkbox" name="expertise[]" value="Others"> Others </pre> and this is the corresponding php code for inserting data $checkusername=mysql_query("SELECT * FROM freelancer WHERE fusername='{$_POST['username']}'"); if (mysql_num_rows($checkusername)==1) { echo "username already exist"; } else { $query = "insert into freelancer(ffname,flname,fgender,femail,fusername,fpwd,fphone,fadd,facc,facc_name,fbank_details,fcity,fcountry,fexpertise,fprofile,fskills,fhourly_rate,fresume) values ('".$_POST['first_name']."','".$_POST['last_name']."','".$_POST['gender']."','".$_POST['email']."','".$_POST['username']."','".$_POST['password']."','".$_POST['phone']."','".$_POST['address']."','".$_POST['acc_num']."','".$_POST['acc_name']."','".$_POST['bank']."','".$_POST['city']."','".$_POST['country']."','".implode(',',$_POST['expertise'])."','".$_POST['profile']."','".$_POST['skills']."','".$_POST['rate']."','".$_POST['resume']."')"; $result = ($query) or die (mysql_error()); this code inserts data for all fields but the checkbox value field remains empty???

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• Jquery .getScript getting the redirect url of javascript

  - by user177883

  I d like to execute a remote javascript which redirects the user to another page on my domain with data that s passes as query string. I want to get this data which is passed on to the page on my domain. $.getScript('http://site.com/foo.js', function() { **//foo.js redirects to another page on my domain with data // and i d like to capture that data from this function, // at least if i find the parameters that passed on there, i ll be fine.** }); What to do ?

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• How to avoid fast rate page refresh in ASP.NET ?

  - by eugeneK

  I have a page that shows statistics for users, this cannot be cached because each user has different statistics and there are many thus the real time query must be made. What the way to avoid database server overload when user will click F5's to refresh or to ask different queries in short time intervals ?

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• apc_delete() not working in background script

  - by Jared

  I have a shell background convertor on my video website and I can't seem to get APC to delete a key as a file is uploaded and its visibility is updated. The script is structured like so: if(file_exists($output_file)) { $conn->query("UPDATE `foo` SET `bar` = 1 WHERE `id` = ".$id." LIMIT 1"); apc_delete('feed:'.$id); } Everything works fine except for the APC and this is the only script on the site that has had this problem. I'm stumped.

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• Get Template::Plugin::Date to accept MySQL dates as well as datetimes

  - by aidan

  I'm using the date plugin for Template::Toolkit (Template::Plugin::Date), it works well with datetimes (yyyy-mm-dd hh:mm:ss) pulled straight out of MySQL, but it will not work with dates (yyyy-mm-dd). What's the simplest way to get date.format to accept dates (without modifying the sql query)? Thanks.

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• What is the funniest bug you've ever experienced?

  - by friol

  I remember testing a geographical data normalizer written in Java that had concurrency problems. So, when you tried to normalize a city (say "Rome") and another guy did that too (say "New york"), you would get the other guy's data normalized ("NEW YORK") instead of your query. What's the bug that mostly made you smile in your career?

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