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• Can I lock tables in an IF statement in MySQL?

  - by MalcomTucker

  This is throwing a syntax error - --from body of a stored proc IF (name = in_name) SET out_id = temp; ELSE LOCK TABLE People WRITE; INSERT INTO People (Name) VALUES (in_name); UNLOCK TABLE; SELECT LAST_INSERT_ID() INTO out_id END IF do I have to lock any tables I need at the start of the SP?

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• How long will a browser remember a "a:visited" link?

  - by Matrym

  How long will a browser remember a "a:visited" link? Assuming the method isn't uniform across browsers - an answer for any individual browser (or as many as you know) would be helpful. Also, under which type of memory is it stored? "Web History"? Cache?

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• C#. Where struct methods code kept in memory?

  - by maxima120

  It is somewhat known where .NET keeps value types in memory (mostly in stack but could be in heap in certain circumstances etc)... My question is - where is the code of the struct? If I have say 16 byte of data fields in the struct and a massive computation method in it - I am presuming that 16 byte will be copied in stack and the method code is stored somewhere else and is shared for all instances of the struct. Are these presumptions correct?

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• Calculating percent of votes inside mysql statement.

  - by Beck

  UPDATE polls_options SET `votes`=`votes`+1, `percent`=ROUND((`votes`+1) / (SELECT voters FROM polls WHERE poll_id=? LIMIT 1) * 100,1) WHERE option_id=? AND poll_id=? Don't have table data yet, to test it properly. :) And by the way, in what type % integers should be stored in database? Thanks for the help!

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• How to store currently logged on user in DB?

  - by stacker

  Using Seam 2.1.2 and JSF 1.2 I wonder how to store the users login name in the database. In plain JSF I would simply lookup FacesContext.getCurrentInstance().getExternalContext().getRemoteUser();in a backing bean and set the value into a persistent object. How can I achieve that the users name will be stored in the DB?

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• deadlocked on lock | communication buffer resources

  - by Robert Wilkinson

  Do all deadlocks indicate a problem with the query or does this kind deadlock indicate a problem with something else like SQL mail or something? The stored proc in question uses SQL mail.

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• What is the best way of inserting a datetime value using dynamic sql

  - by jaffa

  What is the best way of inserting a datetime value using a dynamic sql string, whilst at the same time being able to handle the possibility of the value being null? The current statement inserts into a table from a select statement built using a string. The datetime value is stored in a parameter and the parameter is used in the select. Like so: set @execsql = 'Insert into ( start_date ) SELECT ( ''' + CAST(start_date as VARCHAR) + ''' + ')'

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• MS SQL 2005: Why would a delete from a temp table hang forever?

  - by Dr. Zim

  DELETE FROM #tItem_ID WHERE #tItem_ID.Item_ID NOT IN ( SELECT DISTINCT Item_ID FROM Item_Keyword JOIN Keyword ON Item_Keyword.Keyword_ID = Keyword.Record_ID WHERE Keyword LIKE @tmpKW) The Keyword is %macaroni%. Both temp tables are 3300 items long. The inner select executes in under a second. All strings are nvarchar(249). All IDs are int. Any ideas? I executed it (it's in a stored proc) for over 12 minutes without it finishing.

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• MySQL DATE_FORMAT comparison to CURDATE() query...

  - by Crazy Serb

  Hey guys, I am just trying to pull all the records from my database who have a rec_date (varchar) stored as m/d/Y and are expired (as in, less than curdate()), and this call isn't giving me what I want: SELECT member_id, status, DATE_FORMAT(STR_TO_DATE(rec_date, '%m/%d/%Y'), '%Y-%m-%d') AS rec FROM members WHERE rec_date CURDATE() AND status = '1' I'm obviously doing something wrong, so can you help? Thanks.

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• How to access image folder in django

  - by anc1revv

  I just started django and i want to access images uploaded by a user. here is my model: class Food(models.Model): name = models.CharField(max_length=100) price = models.DecimalField(max_digits=4, decimal_places=2) quantity = models.IntegerField(blank=True, null=True) description = models.CharField(max_length=200) location = models.CharField(max_length=100) time = models.DateTimeField() photo_thumbnail = models.ImageField(upload_to="images") photo_fullsize = models.ImageField(upload_to="images") i stored the image in the "images" folder below the html is this: img src="{{steak.photo_thumbnail}}" and steak.photo_thumbnail = images/steak_and_egg_thumbnail_1.png here is the error i get: [06/Jul/2012 19:08:24] "GET /menu/ HTTP/1.1" 200 99 [06/Jul/2012 19:08:24] "GET /menu/images/steak_and_egg_thumbnail_1.png HTTP/1.1" 404 2127

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• Android Google Analytics dispatch interval

  - by Bear

  In the document, it mentions that we can have a dispatch interval such that page view will be automatically dispatched after x seconds. I have the code like the following tracker.startNewSession("UA-YOUR-ACCOUNT-HERE", 20, this); I sure trackPageView() is called as I can see those pageview are stored into "google_analytics.db" which is the database that google analyitcs used to store non-dispatching pageview. However, it doesn't send to Google Analytics after 20 seconds In log, it keeps reporting scheduling next dispatch when I call trackPageView().

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• Git: Find duplicate blobs (files) in this tree

  - by Readonly

  This is sort of a follow-up to this question. If there are multiple blobs with the same contents, they are only stored once in the git repository because their SHA-1's will be identical. How would one go about finding all duplicate files for a given tree? Would you have to walk the tree and look for duplicate hashes, or does git provide backlinks from each blob to all files in a tree that reference it?

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• How to display records below form on submission in php without the use of database?

  - by OM The Eternity

  How to make the use of hidden variables as array for consecutive submission of data so that they can be used to display the records list. I have a form with 4 text fields and a file upload field.. as i submit he form it should get appended to the list which needs to be displayed below the form, such that these values are NOT stored in the DB.. So in this case how can i use the post array to collect the data and display in the list below?

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• In IntelliJ on OS X, how do you clear out all global setting info, licensing etc. (external to any p

  - by kalak451

  I am having some low level issues with IntelliJ on my mac, I really want to just zero everything out and start over. But even after removing the application and re-installing it, IntelliJ still remembers things like what the last project was, what licensing key to use etc. Where is this information stored? And what is the best way to clear it out?

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• Evaluate list.contains string in JSTL

  - by Support - multilanguage SO

  I need to hide an element if certain values are present in the JSP The values are stored in a List so I tried: <c:if test="${ mylist.contains( myValue ) }">style='display:none;'</c:if> But, it doesn't work. How can I evaluate if a list contains a value in JSTL, the list and the values are strings.

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• Convert a time to specified time zone using C#?

  - by Ravi

  I'm working on an application in C# with .Net 3.5. I have time zone value of the User is stored in DB with this format (-05:00,1), where -5.00 represents EST time zone value and the 1 indicates that this time zone follows daylight saving (if 0 not a daylight saving zone). Now I want to convert any date time value into this timezone value considering the daylight saving value. Any help is appreciated. Thanks

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• Is it possible to make ListView display a text obtained through its ListViewItem.Tag?

  - by Dimitri C.

  I'd like to fill System.Windows.Forms.ListView with the items I've stored in a separate System.Collections.Generics.List<. I would like to avoid to store the data twice, once in the List< and once as a string in ListViewItem. Is there a way to make ListViewItem use some callback function to obtain the text to put in its columns from the Tag property, instead of using its Text property?

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• How to store an arbitrarily long int to a binary file in python?

  - by Mark

  How can I store and retrieve the number 2**10000 in a binary file in python without converting it to a string? Can it be stored as 10,000 bits?

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• how to store a very long integer value in c program for exam :- 98474737475747374739399

  - by yatin

  I have so store a very long value of type integer that can't be stored in a variable of long type. how can i store such a long integer value in a c programme. Please illustrate it through an example/ programme if possible.

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• How to pass data between controls and persist the values in WPF

  - by randyc

  I am stuck on how to pass data from one control to another. If I have a listbox control and the Contol Item contains a datatemplate which renders out 5 fields ( first name, last name, email, phone and DOB) all of which come from an observable collection. How can I allow the user to select a listbox item and have the valuesbe stored within a new listbox control? Is this done through the creation of a new collection or is there a more simple way to bind these values to a new control? thank you,

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• Problem with modifying a page with ajax, and the browser keeping the unmodified page in cache.

  - by David Lawson

  Hey there, I have a situation where my page loads some information from a database, which is then modified through AJAX. I click a link to another page, then use the 'back' button to return to the original page. The changes to the page through AJAX I made before don't appear, because the browser has the unchanged page stored in the cache. Is there a way of fixing this without setting the page not to cache at all? Thanks :)

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• Retrieivng coordinates in this page

  - by hao

  Hey guys, Im trying to do some data mining and analyze data based on locations. For this site, http://www.dianping.com/shop/1898365 I am trying to figure out whats the latitude and longitude by crawling. But I cant seem to figure out where this information is stored. Can someone give me some pointers

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• Localized text in Java

  - by Eager Learner

  My requirement is to display localized text messages in a J2EE web application. I know J2EE provides very good support for this. My question is what is the practice followed to have the localized messages stored to be used by the application. If I want to display Japanese / Chinese kind of messages which are not like English like char sets how do we get that messages/text into the properties files or Database tables.

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• Serialization of an object

  - by sandhya

  Hi I am Serialing an object using GetObjectData(SerializationInfo info, StreamingContext context) { info.AddValue("string1",subobject1); info.AddValue("string2",subobject2); } what will be stored in stream? do the strings also store?

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• Sort Strings by first letter [C]

  - by Blackbinary

  I have a program which places structures in a linked list based on the 'name' they have stored in them. To find their place in the list, i need to figure out if the name im inserting is earlier or later in the alphabet then those in the structures beside it. The names are inside the structures, which i have access to. I don't need a full comaparison if that is more work, even just the first letter is fine. Thanks for the help!

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