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Why can't I call read() twice on an open file?
...ntents of a given file twice using the read() method. Strangely, when I call it the second time, it doesn't seem to return the file content as a string?
...
What is a columnar database?
...an easy fashion).
How do they differ from relational databases?
They generally differ from traditional (row-oriented) databases with regards to ...
performance...
storage requirements ...
ease of modification of the schema ...
...in specific use cases of DBMSes.
In particular they offer advanta...
How do I programmatically change file permissions?
In Java, I'm dynamically creating a set of files and I'd like to change the file permissions on these files on a linux/unix file system. I'd like to be able to execute the Java equivalent of chmod . Is that possible Java 5? If so, how?
...
jQuery Popup Bubble/Tooltip [closed]
...vent OR if the mouse is moved into the bubble. My bubble will need to have all manners of HTML and styling including hyperlinks, images, etc.
...
What is a StackOverflowError?
...
Parameters and local variables are allocated on the stack (with reference types, the object lives on the heap and a variable in the stack references that object on the heap). The stack typically lives at the upper end of your address space and as it is used up...
Pushing an existing Git repository to SVN
I've been doing all my work in Git and pushing to GitHub. I've been very happy with both the software and the site, and I have no wish to change my working practices at this point.
...
Automatic TOC in github-flavoured-markdown
...lavored-markdown:
DocToc Command Line Tool (source) requires node.js
Installation:
npm install doctoc
Usage:
npx doctoc . to add table of contents to all markdown files in the current and all sub directories.
DocToc WebApp
If you want to try it online first, go to the doctoc site,
paste t...
iOS 7.0 No code signing identities found
...ofile
Create New or Edit existing Provisioning profile.
Download and install.
For BundleIdentifier.
com.yourcompanyName.Something (Put same as in AppId)
CodeSigningIdentity.
Select The Provisioning profile which you created.
...
How to drop SQL default constraint without knowing its name?
...llowing script will generate the command to drop the constraint and dynamically execute it.
declare @schema_name nvarchar(256)
declare @table_name nvarchar(256)
declare @col_name nvarchar(256)
declare @Command nvarchar(1000)
set @schema_name = N'MySchema'
set @table_name = N'Department'
set @col_...
Can't connect to localhost on SQL Server Express 2012 / 2016
...ser is started. If not, start it.
You need to make sure that SQL Server is allowed to use TCP/IP or named pipes. You can turn these on by opening the SQL Server Configuration Manager in Start > Programs > Microsoft SQL Server 2012 > Configuration Tools (or SQL Server Configuration Manager),...