大约有 40,000 项符合查询结果（耗时：0.0785秒） [XML]
What's the difference between using INDEX vs KEY in MySQL?
...
"MySQL requires every Key also be indexed, that's an implementation
detail specific to MySQL to improve performance."
share
|
improve this answer
|
follow
...
What is the maximum number of characters that nvarchar(MAX) will hold?
...s that will fit into a NVARCHAR(MAX) field.
Using the other answer's more detailed numbers, you should be able to store
(2 ^ 31 - 1 - 2) / 2 = 1'073'741'822 double-byte characters
1 billion, 73 million, 741 thousand and 822 characters to be precise
in your NVARCHAR(MAX) column (unfortunately, t...
Creating stored procedure and SQLite?
...ototype implementation of SQLite with Stored Procedures. You can find the details at his blog post: Adding Stored Procedures to SQLite
share
|
improve this answer
|
follow
...
How do I install ASP.NET MVC 5 in Visual Studio 2012?
...e. After searching around, I found this link: microsoft.com/en-us/download/details.aspx?id=41532 and this worked for me.
– bugnuker
Mar 9 '16 at 17:54
|
...
Eclipse Android and gitignore
...lems' tab in the view underneath the editor view - it generally gives more detailed information about project errors. If there's nothing conclusive there, I do the things below:
Generally, when I'm having issues with Eclipse giving me phantom errors in the project, cleaning the project will fix it...
PostgreSQL - how to quickly drop a user with existing privileges
...ges granted to the user.
See the postgres docs for DROP ROLE and the more detailed description of this.
Addition:
Apparently, trying to drop a user by using the commands mentioned here will only work if you are executing them while being connected to the same database that the original GRANTS we...
What does “%.*s” mean in printf?
...
More detailed here.
integer value or * that specifies minimum field width. The result is padded with space characters (by default), if required, on the left when right-justified, or on the right if left-justified. In the case ...
Two statements next to curly brace in an equation
... This uses the cases package. Which is described in better detail provided by @MattAllegro.
– lilott8
Oct 11 '19 at 21:40
add a comment
|
...
Execution of Python code with -m option or not
...es command PYTHONPATH=test python -m foo.bar mean? Could you explain it in details, please?
– Andriy
Apr 28 '17 at 16:47
3
...
How to make the hardware beep sound in Mac OS X 10.6
...ality into the onboard sound card.
(If you're curious about the technical details of how the PC speaker interface worked, there are more details here.)
This hardware has never existed in Apple computers. The only audio output available is through the sound card, and the only system beep in macOS i...