Hot questions

0 votes

1.6k views

1 answer

sqlite - cannot load such file -- sqlite3/sqlite3_native (LoadError) on ruby on rails

When I try to setup basic installation and initiation of server using Rails 4.0.0 on Ruby 2.0.0, I'm ... can I avoid this error message and proceed further? Question&Answers:os...

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

0 votes

221 views

1 answer

How do I pass environment variables to Docker containers?

I'm new to Docker, and it's unclear how to access an external database from a container. Is the ... ? # Dockerfile ENV DATABASE_URL amazon:rds/connection?string Question&Answers:os...

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

0 votes

123 views

1 answer

sql server - SQL query to select dates between two dates

I have a start_date and end_date. I want to get the list of dates in between these two dates. Can anyone help ... 2011/02/27 Here Date is a datetime variable. Question&Answers:os...

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

0 votes

433 views

1 answer

assembly - How do AX, AH, AL map onto EAX?

My understanding of x86 registers say that each register can be accessed by the entire 32 bit code and it is broken ... if it is what value does AH truly hold? Question&Answers:os...

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

0 votes

283 views

1 answer

http - Preventing form resubmission

Page one contains an HTML form. Page two - the code that handles the submitted data. The form in page one ... " alert pops up. Can this be prevented? Question&Answers:os...

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

0 votes

261 views

1 answer

java - How to make the division of 2 ints produce a float instead of another int?

In another Bruce Eckels exercise in calculating velocity, v = s / t where s and t are integers. How do I make it so the ... " + outV); } //end main }//end class Question&Answers:os...

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

0 votes

175 views

1 answer

sql - MySQL Cannot Add Foreign Key Constraint

So I'm trying to add Foreign Key constraints to my database as a project ... FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS; SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS; Question&Answers:os...

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

0 votes

156 views

1 answer

php - Undefined function mysql_connect()

I have ran aptitude install php5-mysql (and restarted MySQL/Apache 2), but I am still getting this error: Fatal ... /conf.d/pdo_mysql.ini file has been parsed. Question&Answers:os...

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

0 votes

368 views

1 answer

delay - Is process in VHDL reentrant?

Is it possible two or more sequential run for a process in VHDL? What will happen if another event happen ( ... model in mind for process is completely wrong? Question&Answers:os...

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

0 votes

158 views

1 answer

ios - What is the iBeacon Bluetooth Profile

I'd like to create my own iBeacon with some Bluetooth Low Energy dev kits. Apple has yet to ... /www.bluetooth.org/en-us/specification/adopted-specifications Question&Answers:os...

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

0 votes

438 views

1 answer

Why is Java's SimpleDateFormat not thread-safe?

This question already has answers here: Question&Answers:os...

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

0 votes

180 views

1 answer

excel - How to return a result from a VBA function

How do I return a result from a function? For example: Public Function test() As Integer return 1 End Function ... do I make this function return an integer? Question&Answers:os...

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

0 votes

243 views

1 answer

urllib2 - Downloading a picture via urllib and python

So I'm trying to make a Python script that downloads webcomics and puts them in a folder on my desktop. I've ... to date" # prints if all comics are downloaded Question&Answers:os...

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

0 votes

195 views

1 answer

.net - What is the proper way to rethrow an exception in C#?

This question already has answers here: Question&Answers:os...

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

0 votes

91 views

1 answer

MySQL with Node.js

I've just started getting into Node.js. I come from a PHP background, so I'm fairly used to using MySQL for all ... needs. How can I use MySQL with Node.js? Question&Answers:os...

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

0 votes

308 views

1 answer

Node.js: what is ENOSPC error and how to solve?

I have a problem with Node.js and uploading files to server. For uploading files to server I use this plugin. When ... /vol overflow 1.0M 1.0M 0 100% /tmp Question&Answers:os...

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

0 votes

241 views

1 answer

python - UnicodeDecodeError: 'utf8' codec can't decode byte 0x9c

I have a socket server that is supposed to receive UTF-8 valid characters from clients. The problem is some ... perfectly OK to strip the non ASCII characters. Question&Answers:os...

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

0 votes

262 views

1 answer

javascript - Where do you include the jQuery library from? Google JSAPI? CDN?

There are a few ways to include jQuery and jQuery UI and I'm wondering what people are using? Google JSAPI ... to worry about switching between http and https. Question&Answers:os...

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

0 votes

332 views

1 answer

apache - How to Set AllowOverride all

I want to set the AllowOverride all But I don't know how to do it. I have found the following code by searching the ... where to put this code or how to do it? Question&Answers:os...

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

0 votes

223 views

1 answer

r - How to split data into training/testing sets using sample function

I've just started using R and I'm not sure how to incorporate my dataset with the following sample code: sample( ... file, and size how many samples I have? Question&Answers:os...

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

0 votes

66 views

1 answer

c# - How to save/restore serializable object to/from file?

I have a list of objects and I need to save that somewhere in my computer. I have read some forums ... object1 somewhere in my computer and later retrieve? Question&Answers:os...

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

0 votes

138 views

1 answer

What is the difference between require_relative and require in Ruby?

What is the difference between require_relative and require in Ruby? Question&Answers:os...

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

0 votes

109 views

1 answer

Is there an interpreter for C?

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

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

0 votes

79 views

1 answer

javascript - Access Control Request Headers, is added to header in AJAX request with jQuery

I would like to add a custom header to an AJAX POST request from jQuery. I have tried this: $.ajax({ ... value My-Second-Header: second value Is it possible? Question&Answers:os...

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

0 votes

124 views

1 answer

multithreading - Does PHP have threading?

I found this PECL package called threads, but there is not a release yet. And nothing is coming up on the PHP website. Question&Answers:os...

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

0 votes

188 views

1 answer

python - Generate random numbers with a given (numerical) distribution

I have a file with some probabilities for different values e.g.: 1 0.1 2 0.05 3 0.05 4 0.2 5 ... do not follow any distribution in the standard random module). Question&Answers:os...

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

0 votes

63 views

1 answer

java - Convert JSON to Map

What is the best way to convert a JSON code as this: { "data" : { "field1" : "value1", "field2" : "value2" ... lib for that? Or better if I write my own parser? Question&Answers:os...

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

0 votes

89 views

1 answer

javascript - How to get unique values in an array

How can I get a list of unique values in an array? Do I always have to use a second array or is there ... and jQuery only. No additional libraries can be used. Question&Answers:os...

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

Categories

Just Browsing Browsing

Most popular tags