大约有 8,200 项符合查询结果（耗时：0.0297秒） [XML]
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...
Notice how the output of
SHOW GRANTS FOR 'root'@'localhost';
did not say 'ALL PRIVILEGES' but had to spell out what root@localhost has.
GRANT ALL PRIVILEGES will fail, because a user can not grant what he/she does not have,
and the server ...
How to find out which processes are using swap space in Linux?
Under Linux, how do I find out which process is using the swap space more?
17 Answers
...
How to split a string, but also keep the delimiters?
...
You can use Lookahead and Lookbehind. Like this:
System.out.println(Arrays.toString("a;b;c;d".split("(?<=;)")));
System.out.println(Arrays.toString("a;b;c;d".split("(?=;)")));
System.out.println(Arrays.toString("a;b;c;d".split("((?<=;)|(?=;))")));
And you will get:
[a;, b;, c;...
Fastest way to count exact number of rows in a very large table?
...
Simple answer:
Database vendor independent solution = use the standard = COUNT(*)
There are approximate SQL Server solutions but don't use COUNT(*) = out of scope
Notes:
COUNT(1) = COUNT(*) = COUNT(PrimaryKey) just in case
...
Pretty-print C++ STL containers
Please take note of the updates at the end of this post.
10 Answers
10
...
Running unittest with typical test directory structure
The very common directory structure for even a simple Python module seems to be to separate the unit tests into their own test directory:
...
Merge 2 arrays of objects
Lets have a look at an example.
33 Answers
33
...
Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
...
What's the need of array with zero elements?
...se it like this:
struct bts_action *var = kmalloc(sizeof(*var) + extra, GFP_KERNEL);
This used to be not standard and was considered a hack (as Aniket said), but it was standardized in C99. The standard format for it now is:
struct bts_action {
u16 type;
u16 size;
u8 data[];
} __a...
AngularJS : The correct way of binding to a service properties
I’m looking for the best practice of how to bind to a service property in AngularJS.
10 Answers
...