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How to change the timezone of Oracle SQL Developer / Oracle Data Modeler?

Each time I run Oracle SQL Developer or Oracle Data Modeler I receive this error message: ora-01882 " ... timezone found in V$TIMEZONE_NAMES. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - <button type="submit"> compatibility?

I'd like to have a submit button that submits a different value than is displayed on the button. With ... earlier versions, particularly IE6? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - Change width of a UIBarButtonItem in a UINavigationBar

I am creating a UIBarButtonItem and adding it to my navigation bar like so: (void)viewDidLoad { ... // Add the ... to have a width of 30 px? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - How to manage dividers in a PreferenceFragment?

I started dealing with preferences in a PreferenceFragment. Here's what I have: I'm trying to: get rid of ... no (explicit) padding whatsoever. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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validation - How to set maxlength attribute on h:inputTextarea

How can I limit the length of <h:inputTextarea>? For <h:inputText> it works fine with maxlength attribute. ... unavailable in <h:inputTextarea>. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Java: Double Value Comparison

Do we need to be careful when comparing a double value against zero? if ( someAmount <= 0){ ..... } See Question&Answers more detail:os...

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python - White lines in matplotlib's pcolor

In some pdf viewers such as Preview on OSX, plots made with matplotlib's pcolor have white lines (see image below ... pl.savefig("heatmap.pdf") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do you disable MouseOver effects on a Button in WPF?

I'm trying to disable the MouseOver effect on buttons, or at least change the colour of it, in WPF. I'm ... But it doesn't. Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Why the libc++ std::vector internally keeps three pointers instead of one pointer and two sizes?

I'm looking at the implementation of std::vector in libc++ and I noticed that it internally keeps three pointers ... the "pointer + sizes" one? See Question&Answers more detail:os...

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c# - Deserialization problem with DataContractJsonSerializer

I've got the following piece of JSON: [{ "name": "numToRetrieve", "value": "3", "label": "Number of items ... range or 3. Any advice or ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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speech - how I can change the voice synthesizer gender and age in C#?

I would like to change the gender and age of the voice of System.Speech in c#. For example, a girl of 10 ... to help me adjust the parameters. See Question&Answers more detail:os...

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dom - Stopping a iframe from loading a page using javascript

Is there a way in javascript of stopping an iframe in the middle of loading a page? The reason I need to ... at will. Any ideas welcome. See Question&Answers more detail:os...

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html - Why does an anchor tag's href values need http:// preprended to the URL?

<a href="www.stackoverflow.com" target="_blank">click here</a> Clicking the above link on a site's HTML ... is the rationale for this behavior? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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objective c - Can an iPhone app block phone calls?

Is it possible to write an application that will block incoming and outcoming phone calls? Or is the iPhone locked down too much? Thanks! See Question&Answers more detail:os...

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Using gmail smtp via Laravel: Connection could not be established with host smtp.gmail.com [Connection timed out #110]

When I try to use GMail SMTP for sending email via Laravel, I encounter the following error: Swift_TransportException ... on localhost is open. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Java Generics: Wildcard capture misunderstanding

Reading the Java online tutorial I haven't understand anything about wildcard capture. For example: import java. ... Why write Wildcard helper? See Question&Answers more detail:os...

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How to search SQL column containing JSON array

I have a SQL column that has a single JSON array: {"names":["Joe","Fred","Sue"]} Given a search string, how ... (column, '$.names') = 'Joe' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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group by - SQL - Displaying entries that are the max of a count?

CREATE TABLE doctor( patient CHAR(13), docname CHAR(30) ); Say I had a table like this, then how would I ... who have the max patients. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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discord - create_task = asyncio.async: SyntaxError: invalid syntax

I'm creating a bot for Discord, and I just wrote this simple code: import discord TOKEN = "token" client = ... PyCharm as my IDE for Python. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Database Design: Multiple tables vs a single table

I am making a website where there are different types of items such as blogs, posts, articles and so on. A user ... it helps, I am using MySql See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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When is memory, allocated by .NET process, released back to Windows

The Setup .NET allocates memory for each generation's heap (0, 1, 2, LOH) in segments to get a ... Added reference to Tess restaurant analogy See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - How to count date difference excluding weekend and holidays in MySQL

I need to count days (business days) between two dates excluding weekend (most important) and holidays SELECT DATEDIFF(end_date ... 51, 6, ''); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Integers from excel files become floats?

I use xlrd to read data from excel files. For integers stored in the files, let's say 63, the xlrd interprets ... can I convert it back to 63. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - How to use UIImagePickerController in iPad?

Hi i am working on a universal application (iPhone/iPad). one feature is that i have to select a photo from ... also googled it but in vain. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - sklearn pipeline - how to apply different transformations on different columns

I am pretty new to pipelines in sklearn and I am running into this problem: I have a dataset that ... pointers would be greatly appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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oracle - How to use a table type in a SELECT FROM statement?

This question is more or less the same as this In the package header : Declared the following row type ... Variable inside my StoredProcedure. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - LG G3 device not recognized by Eclipse on Windows

I recently bought LG G3 and I have enabled debugging mode but Eclipse is still not recognizing it, back when I ... please post a link for that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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domain driven design - Why does the entity framework need an ICollection for lazy loading?

I want to write a rich domain class such as public class Product { public IEnumerable<Photo> Photos {get; ... me a better DDD experience? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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