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Passing Data between View Controllers
...controller creates a new (mutable) dictionary and adds it to the array. In order to fill in the row, the controller creates a detail view controller and gives it the new dictionary. The detail view controller fills in the dictionary and returns. The dictionary is already part of the model, so nothin...
Neo4j - Cypher vs Gremlin query language
...ltiple conditions in your query there is no way in Cypher to tell in which order to perform the traversals. So your cypher query may go wild into the graph in a wrong direction first.
I have not done much with Gremlin, but I could imagine you get much more execution control with Gremlin.
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Hidden Features of MySQL
... COLUMNS FROM mytable
SELECT max(namecount) AS virtualcolumn FROM mytable ORDER BY virtualcolumn
http://dev.mysql.com/doc/refman/5.0/en/group-by-hidden-fields.html
http://dev.mysql.com/doc/refman/5.1/en/information-functions.html#function_last-insert-id
last_insert_id()
gets you the PK of the ...
How to backup a local Git repository?
...git bundle
That will create a file that support git fetch and git pull in order to update your second repo.
Useful for incremental backup and restore.
But if you need to backup everything (because you do not have a second repo with some older content already in place), the backup is a bit more e...
How can I record a Video in my Android App.?
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Here is a simple video recording example using the MediaRecorder:
public class VideoCapture extends Activity implements OnClickListener, SurfaceHolder.Callback {
MediaRecorder recorder;
SurfaceHolder holder;
boolean recording = false;
@Override
public void onCrea...
how to schedule a job for sql query to run daily?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Accessing localhost (xampp) from another computer over LAN network - how to?
...rver.
#
# Require all granted
# onlineoffline tag - don't remove
Order Deny,Allow
# Deny from all
Allow from all
Allow from 127.0.0.1
Allow from ::1
Allow from localhost
Allow from 192.168.1.*YOURguestIP*
Allow from 192.168.1.*YOURselfIP*
</Directory&g...
Git workflow and rebase vs merge questions
...he local history, but rather re-applying local history on top of master in order to solve any conflict within the local branch.
– VonC
May 9 '12 at 20:09
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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...
...个5M row。
OLTP_RO测试包含5个select查询：select_ranges, select_order_ranges, select_distinct_ranges, select_sum_ranges,
可以看到在多核心或者多线程的场景下， jemalloc和tcmalloc带来的tps增加非常明显。
参考资料
glibc内存管理ptmalloc源代码分析
I...
Best way to organize jQuery/JavaScript code (2013) [closed]
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Use javascript MVC Framework in order to organize the javascript code in a standard way.
Best JavaScript MVC frameworks available are:
Backbone
Angular
CanJS
Ember
ReactJS
Selecting a JavaScript MVC framework required so many factors to consider. Read ...