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How do I escape reserved words used as column names? MySQL/Create Table
...f ANSI SQL mode is enabled
CREATE TABLE IF NOT EXISTS misc_info
(
id INTEGER PRIMARY KEY AUTO_INCREMENT NOT NULL,
"key" TEXT UNIQUE NOT NULL,
value TEXT NOT NULL
)
ENGINE=INNODB;
or the proprietary back tick escaping otherwise. (Where to find the ` character on various key...
Android AsyncTask threads limits?
...y a shared (static) ThreadPoolExecutor and a LinkedBlockingQueue. When you call execute on an AsyncTask, the ThreadPoolExecutor will execute it when it is ready some time in the future.
The 'when am I ready?' behavior of a ThreadPoolExecutor is controlled by two parameters, the core pool size and t...
How to cherry-pick from a remote branch?
...ct data locally from a remote source, you need to use git fetch. When you did git checkout zebra you switched to whatever the state of that branch was the last time you fetched. So fetch from the remote first:
# fetch just the one remote
git fetch <remote>
# or fetch from all remotes
git fetc...
Passing a method as a parameter in Ruby
...eightedknn(data, vec1, k = 5, weightf = gaussian)
...
weight = weightf.call(dist)
...
end
Just note that you can't set a default argument in a block declaration like that. So you need to use a splat and setup the default in the proc code itself.
Or, depending on your scope of all this, i...
IllegalMonitorStateException on wait() call
...
good catch. i assumed he meant Object.wait() and called from a thread
– reccles
Oct 8 '09 at 12:00
2
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How are Python's Built In Dictionaries Implemented?
...bing just means it searches the slots by slot to find an empty slot. Technically we could just go one by one, i+1, i+2, ... and use the first available one (that's linear probing). But for reasons explained beautifully in the comments (see dictobject.c:33-126), CPython uses random probing. In random...
onActivityResult() & onResume() [duplicate]
Could someone tell me which gets called first, is it onActivityResult() or is it onResume() ?
Example:
3 Answers
...
Once upon a time, when > was faster than < … Wait, what?
...ting bit of trivia to add. I didn't intend to go over the algorithm specifically.
However, context is key. I never said that a < comparison was faster than a > comparison. Remember: we're talking about graphics hardware depth tests, not your CPU. Not operator<.
What I was referring to was...
Using Intent in an Android application to show another activity
In my Android application, I have two activity classes. I have a button on the first one and I want to show the second when it is clicked, but I get an error. Here are the classes:
...
PHP PDO returning single row
...n string --- ");
$stmt = $dbh->prepare("SELECT name FROM mytable WHERE id=4 LIMIT 1");
$stmt->execute();
$row = $stmt->fetch();
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