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• SQL select order by decimal precision desc

  - by user267272

  I'm interested in finding the most precise decimal values in a database field. I'd like to be able to sort results by descending precision. Is this possible? e.g. 10.1781253 12345.12435 89.763 1.1 2

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• Marking deleted records in DB tables

  - by Emanuil

  Sometimes you want to mark a DB table record as deleted instead of deleting it permanently, right? How do you do that? So far I've been using a boolean "deleted" field.

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• How to disable an input with jQuery Validation Plugin

  - by Eelke

  This should be really simple but I can't get it to work, how do I disable and add a class to an input? Let's say I've got an input field with id = name, this is how far I got, $("input#name").attr("disabled"); What am I doing wrong here? Any help would be greatly appreciated, thanks in advance!

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• how store date in mysql database?

  - by Syom

  i have date in dd/mm/yyyy format. how can i store it in databse, if i fant to do some operations on them after? for example i must find out the rows, where date > something what type i must set to date field? thanks

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• MySQL Order By Problem, Why is 1000 being seen as Smaller than 2?

  - by Jack

  I have a strange problem, I am trying to order the output of a set of records by a field called displayOrder. Now even though record A has a displayOrder of 2 and record B has a displayOrder of 1000, record B still shows up before record A. Here's my select statement: SELECT * FROM items ORDER BY displayOrder ASC It works fine until I have a record greater than 9, then 10, 11, 12, etc are seen as smaller than 2, 3, 4 because they start with the number 1. Any way to fox this?

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• Handling a colon in an element ID in a CSS selector

  - by sblundy

  JSF is setting the ID of an input field to search_form:expression. I need to specify some styling on that element, but that colon looks like the beginning of a pseudo-element to the browser so it gets marked invalid and ignored. Is there anyway to escape the colon or something? input#search_form:expression { ///... }

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• How to show only few lines from a body text

  - by saquib

  Hi, I have a mySql database i want to display only 10 words from its body field which contain html codes, How i can do that, is there any php function to do that.

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• Communicating between classes

  - by zachary

  I have a form that is divided into two classes. Each class represents the widgets on part of the form. What is the best way to allow these classes to share data between each other and update each other. Example: Button in class A is clicked. Update text field in class C

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• Is it a bad programming practise to have "Public" members inside an "Internal" class?

  - by Amby

  I mean, won;t it be more specific and appropriate if i "only" keep "protected","internal" and "private" members (field,method,property,event) in a class which is declared as "internal" ? I have seen this practice ( having "public" members in an "internal" class) in various code so just wanted to know is it a bad practice or does it has some benefit or advantage. [Only concerned about C#] Thanks for your interest.

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• R equivalent of SELECT DISTINCT on two or more fields/variables

  - by wahalulu

  Say I have a dataframe df with two or more columns, is there an easy way to use unique() or other R function to create a subset of unique combinations of two or more columns? I know I can use sqldf() and write an easy "SELECT DISTINCT var1, var2, ... varN" query, but I am looking for an R way of doing this. It occurred to me to try ftable coerced to a dataframe and use the field names, but I also get the cross tabulations of combinations that don't exist in the dataset: uniques <- as.data.frame(ftable(df$var1, df$var2))

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• PHP: Check if it has been one week since timestamp

  - by Rudi

  Hi guys, Let's assume: $time = '2010-05-17 02:49:30' // (retrieved from MySQL TIMESTAMP field) How do I do the following in PHP: 1) Check if it has been more than one week since this time has passed? 2) Assuming "false" on (1), find out how much more time until the one week mark, rounded to days and hours remaining. I know this is pretty straightforward, but it uses a very specific syntax. Having never played with time calculations before, I'd appreciate some guidance. Thanks!

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• Serializing Vector<String> to String

  - by dhroller

  I need to convert a Vector to a String (an vice versa) to be stored in a CHAR field in a database. What is the most efficient way to do this ?

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• Grails automatic constraint update

  - by Prakash

  Does grails have an automatic constraint update. If we change the field in domain class to be nullable by adding constraint, it is not getting reflected in database without schema export. Is it possible to do get grails do this update automatically.

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• how to use sed/awk to remove words with multiple pattern count

  - by user1461112

  I have a file of string records where one of the fields - delimited by "," - can contain one or more "-" inside it. The goal is to delete the field value if it contains more than two "-". i am trying to recoup my past knowledge of sed/awk but can't make much headway ========== info,whitepaper,Data-Centers,yes-the-6-top-problems-in-your-data-center-lane info,whitepaper,Data-Centers,the-evolution-center info,whitepaper,Data-Centers,the-evolution-of-lan-technology-lanner ========== expected outcome: info,whitepaper,Data-Centers info,whitepaper,Data-Centers,the-evolution-center info,whitepaper,Data-Centers thanks

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• How to add my network library integration into FBReaderj in android?

  - by newgeek

  Hi , I am new in the field of ANdroid. I am using FBReaderj code for my project. I want to download a book from my website. In FBREADERJ they have integrated with three site. I want to add my own. Any ideas ?? Please Help.. Thanks in Advance

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• onUpdate in MySQL means?

  - by ajsie

  i know that if you create a foreign key on a field (parent_id) in a child table that refer to a parent table's primary key (id), then if this parent table is deleted the child class will be deleted as well if you set onDelete to cascade when creating the foreign key in the child class. but what happens if i set it to onUpdate = cascade?

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• UITextField with numbers and default keyboard

  - by n35

  Created a UITextField for "Postal Code/ZIP" field with a keyboardType of UIKeyboardTypeDefault. I would like to use the default keyboard but want the numbers & symbols to be shown by default as apposed to letters. Apple does this when you are entering addresses in the Contacts.app. Anyone know how to get this accomplished?

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• Any reason to have a session ID within a form?

  - by RadiantHex

  Hi folks, is there any reason for me to place the session ID within a form, as a hidden form field? Thank you everyone!! :)

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• How do I combine two rows of same part, but add quantities?

  - by Tom

  I have table "PICKITEM" PARTID QTY A 1 A 3 B 11 C 8 D 5 D 3 I need a select statement that will return one line for like PARTIDs and add the qty field to together, yet also return the rest of the lines in the table as is PARTID QTY A 4 B 11 C 8 D 8 Probably a newb question, but I am new to SQL syntax and queries. Any help in getting me on the right path would be appreciated!

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• MySQL: How can I select only the last update for each user?

  - by KeyStroke

  Say I have a 'user_log' table with the following field: id user_id status_text timestamp How do I write a query that selects only the last update for all the users in that table? Appreciate your help :)

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• App Engine List<String> DB adds chars before string?

  - by Donalds

  Hi, I have a field in my db which is a List. I add strings to that list and it works fine on the development server. This is the result: [mat12, bg10] When I do the same on the deploy server, this is the result: [u'mat12', u'bg10'] I don't understand why it adds "u' '" to the string. I would really appreciate your help. Thanks

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• IList<T> versus Collection<T> as property

  - by Brian Triplett

  I have a class with a internal array field. I want to expose this array as a property, such that it maintains as much funtionallity of the orginal array but does not violate abstraction by exposing the array directly. What are the various methods and pros and cons? I'm thinking specifically about IList<T> or Colleciton<T>

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• TCP Connection Persistent State

  - by TripShock

  Is there any field/option/anything that I can put in a TCP packet (be it a syn or an ack or just plain data) that I can be sure will be returned by the other end intact? For eg. I want to "tag" a particular connection (src, srcport, dst, dstport) with a number that I can always read from a packet belonging to that connection. That means I can identify the connection without using the 4-tuple (as given above).

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• Strange ruby syntax

  - by AntonAL

  Hi, what the syntax is in Action Mailer Basics rails guide ? class UserMailer < ActionMailer::Base def welcome_email(user) recipients user.email from "My Awesome Site Notifications <[email protected]>" subject "Welcome to My Awesome Site" sent_on Time.now body {:user => user, :url => "http://example.com/login"} end end How should i understand the construction, like from "Some text for this field" Is it an assignment the value to a variable, called "from" ?

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• 42S22 SQL error: Column not found, why?

  - by Vincenzo

  This is my SQL: SELECT `tbl`.*, 123 AS `test` FROM `tbl` GROUP BY `test` It works when I run it directly in MySQL. But PDO says: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'test' in 'field list' Why so? How to cure this problem? I'm using Zend_Db.

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