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JPA eager fetch does not join
...be fetched in any one of the ways given below
SELECT => one query for root entities + one query for related mapped entity/collection of each root entity = (n+1) queries
SUBSELECT => one query for root entities + second query for related mapped entity/collection of all root entities retrieved...
Deleting folders in python recursively
...ve an example that almost exactly matches this question: import os for root, dirs, files in os.walk(top, topdown=False): for name in dirs: os.rmdir(os.path.join(root, name))
– DaveSawyer
Nov 30 '18 at 18:32
...
When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
...roblems where a RDBMS is not a viable solution, for all other things I use MySQL (or SQLite for testing).
If you need a NoSQL db you usually know about it, possible reasons are:
client wants 99.999% availability on
a high traffic site.
your data makes
no sense in SQL, you find yourself
doing mult...
谁在争抢UGC - 资讯 - 清泛网 - 专注C/C++及内核技术
...站进行竞争的仍然是与民生密切相关的新闻领域。因此，如何将UGC的范围扩大，让网友生产出真正具有新闻价值的信息，在提供娱乐的同时承担起媒体的社会责任，应该是“UGC新贵”们应该进行的长远打算。
如今，用户越来越...
What is “android:allowBackup”?
...y don't even know what is adb , and if they do , they probably know how to root their device and get the data by themselves anyway , no ?
– android developer
Dec 10 '12 at 19:36
1
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Version vs build in Xcode
...ps if you want to write your version/build numbers to your Settings.bundle/Root*.plist file(s).
This is extended from the how-to article here.
In Xcode 4.2 - 5.0:
Load your Xcode project.
In the left hand pane, click on your project at the very top of the hierarchy. This will load the project se...
马无夜草不肥——聊聊程序员接私活的那些坑 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...易找到一家价钱相对合理的甲方，然后问题又来了，价钱如何阶段收取呢？是5-3-2，还是6-3-1，还是神马？
有些猿类血泪教训：价钱按照3-3-4来收取，做到一半的时候，结果需求方就说不想做了，项目黄了。这种情况下尾款肯定...
How to add images to README.md on GitHub?
...ich for me is just the name of the image file because I have everything in root). I had been maintaining 2 copies of the README.md, one for local installation in /usr/share/projectname/docs, and one for github. Now, I can just use the same README.md for both since the image filenames work fine in bo...
Correct file permissions for WordPress [closed]
...wned by the user account used
by the web server process.
/
The root WordPress directory: all files should be writable only by your user account, except .htaccess if you want WordPress to
automatically generate rewrite rules for you.
/wp-admin/
The WordPress administration are...
Make .git directory web inaccessible
...
Put this in an .htaccess file at the root of your web server:
RedirectMatch 404 /\.git
This solution is robust and secure: it
works for all .git directories in your site, even if there are more than one,
also hides other Git files like .gitignore and .gitmo...