大约有 42,000 项符合查询结果（耗时：0.0391秒） [XML]
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
I'm used to using relational databases like MySQL or PostgreSQL, and combined with MVC frameworks such as Symfony, RoR or Django, and I think it works great.
...
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
...
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...
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...
How does the SQL injection from the “Bobby Tables” XKCD comic work?
...ample, you can only run multiple statements in one SQL string by using the mysqli_multi_query function.
You can, however, manipulate an existing SQL statement via SQL injection without having to add a second statement. Let's say you have a login system which checks a username and a password with th...
Count(*) vs Count(1) - SQL Server
...not the case for Oracle or most other modern RDBMS but is the case for old MySQL's storage engine, MyISAM), then COUNT(*) would just need to take the value from the metadata.
– Quassnoi
Oct 31 '18 at 18:29
...
Read properties file outside JAR file
...am is main.jar and its main properties file is main.properties):
./ - the root of your program
|__ main.jar
|__ main.properties
With this architecture, you can modify any property in the main.properties file using any text editor before or while your main.jar is running (depending on the curren...
How to limit depth for recursive file list?
...u %g %p\n'
drwx------ www-data www-data /tmp/user/33
drwx------ octopussy root /tmp/user/126
drwx------ root root /tmp/user/0
drwx------ siegel root /tmp/user/1000
drwxrwxrwt root root /tmp/systemd-[...].service-HRUQmm/tmp
(Edited for readability: indented, shortened l...
Storing money in a decimal column - what precision and scale?
...
For Mysql, I recommend storing the integer (2500) as a bigint if you intend on sorting by the amount. And don't waste your time with PHP 32bit when dealing with big integers, upgrade to 64bit or Node.JS ;)
–...