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How to ALTER multiple columns at once in SQL Server
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Doing multiple ALTER COLUMN actions inside a single ALTER TABLE statement is not possible.
See the ALTER TABLE syntax here
You can do multiple ADD or multiple DROP COLUMN, but just one ALTER
COLUMN.
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Can I mix Swift with C++? Like the Objective-C .mm files
I just changed my .m files to .mm and use C++. Is there a way to do the same with Swift?
13 Answers
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xcopy file, rename, suppress “Does xxx specify a file name…” message
...ust overlooking the proper flag , but how would I, in one command, copy a file from one directory to another and rename it in the destination directory? Here's my command:
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How to create directory automatically on SD card
I'm trying to save my file to the following location
FileOutputStream fos = new FileOutputStream("/sdcard/Wallpaper/"+fileName);
but I'm getting the exception java.io.FileNotFoundException
However, when I put the path as "/sdcard/" it works.
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How can I convert tabs to spaces in every file of a directory?
How can I convert tabs to spaces in every file of a directory (possibly recursively)?
19 Answers
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What's the difference between Jetty and Netty?
...er to the traditional Java way of doing server applications (servlets, WAR files). Like Netty it is sufficiently lightweight to be embedded into Java applications.
Netty is a NIO client server framework which enables quick and easy
development of network applications such as protocol servers a...
SQLAlchemy: cascade delete
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The problem is that sqlalchemy considers Child as the parent, because that is where you defined your relationship (it doesn't care that you called it "Child" of course).
If you define the relationship on the Parent class instead, it will work:
children = rel...
Resolving a Git conflict with binary files
...like this. So if you have a merge conflict, and you know you just want the file from the branch you are merging in, you can do:
$ git checkout --theirs -- path/to/conflicted-file.txt
to use that version of the file. Likewise, if you know you want your version (not the one being merged in) you can...
MySQL, better to insert NULL or empty string?
...insert a NULL value or an empty string into the DB columns where the user didn't put any data?
6 Answers
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Undo working copy modifications of one file in Git?
After the last commit, I modified a bunch of files in my working copy, but I want to undo the changes to one of those files, as in reset it to the same state as the most recent commit.
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