大约有 42,000 项符合查询结果（耗时：0.0414秒） [XML]
Why are Oracle table/column/index names limited to 30 characters?
... can be extremely painful when doing migration projects from SQL Server or MySQL to Oracle. In Oracle Database 12cR2, the maximum length of most identifiers is now 128 characters.
This is a new feature in 12.2, according to (http://blog.dbi-services.com/oracle-12cr2-long-identifiers/). According t...
Visual Studio TFS shows unchanged files in the list of pending changes
... away, the command is tfpt uu /noget /r *, which must be executed from the root of the branch. Saying this, although it correctly picks up redundant changes, then claims to undo them, I still see them as checked out in VS and in the Check In dialog, so it seems broken for me :/
...
How to find serial number of Android device?
...
Thanks for posting. But what's to stop someone with a rooted phone from simply editing device_id.xml to put in a new UUID of their choice? (i.e. to circumvent a 'free trial' check) Wouldn't it be better if the class only stored the value in a preference file if it has to resort...
How do I rename a repository on GitHub?
...om following the steps above, you need to make sure your local repository (root folder) is renamed properly and it's pointing to the right remote url :) link. In order to achieve that, do the following:
You might want to use the new given name for your repo. To do so, rename the local folder eithe...
How to print the ld(linker) search path
...e prints out
/usr/lib64/atlas:
/usr/lib/llvm:
/usr/lib64/llvm:
/usr/lib64/mysql:
/usr/lib64/nvidia:
/usr/lib64/tracker-0.12:
/usr/lib/wine:
/usr/lib64/wine:
/usr/lib64/xulrunner-2:
/lib:
/lib64:
/usr/lib:
/usr/lib64:
/usr/lib64/nvidia/tls: (hwcap: 0x8000000000000000)
/lib/i686: (hwcap: 0x0008000000...
git - Find commit where file was added
...ly, but i have similar use case, where i generally stay within the project root of a git directory and issue commands from there, and using the supplied one liner git log --diff-filter=A -- foo.js did not print the commit ID / hash to STDOUT in my terminal rather i had to provide the relative path t...
How safe is it to store sessions with Redis?
I'm currently using MySql to store my sessions. It works great, but it is a bit slow.
3 Answers
...
What is SaaS, PaaS and IaaS? With examples
...:
A layer on top of IAAS
Runtimes (like java runtimes), Databases (like mySql, Oracle), Web Servers (tomcat etc)
SAAS (Software As A Service) :
A layer on top on PAAS
Applications like email (Gmail, Yahoo mail etc), Social Networking sites (Facebook etc)
To quickly relate consider the belo...
Why doesn't C have unsigned floats?
... log of values < 1, you couldn't solve quadratic equations: x = (-b +/- root (b.b - 4.a.c)) / 2.a, and so on. In fact, it probably wouldn't work for any complex function as these tend to be implemented as polynomial approximations which would use negative values somewhere.
So, unsigned floats ar...
Is it possible to use a div as content for Twitter's Popover
...<div> inside the popover. Potentially, I would like to use php and mysql in there, but if i could get a div to work i think i can figure out the rest. I tried setting data-content to a div ID, but it didnt work.
...