大约有 47,000 项符合查询结果（耗时：0.0775秒） [XML]
django test app error - Got an error creating the test database: permission denied to create databas
... you will have the same error. You can fix it for mysql with: => GRANT ALL ON *.* TO django@localhost; I originally tried to only GRANT CREATE... but then could not SELECT or DROP the created database. This essentially makes your user a superuser, so be careful.
– mightypi...
Visual Studio: Is there a way to collapse all items of Solution Explorer?
...xplorer one by one, but I would like to know if there is a way to collapse all items with only one operation. I want to know it because, today I have a solution with 6 projects that have at least two hundred files and if I try to collapse them one-by-one I will have a hard time.
...
How to see indexes for a database or table in MySQL?
...fic table use SHOW INDEX:
SHOW INDEX FROM yourtable;
To see indexes for all tables within a specific schema you can use the STATISTICS table from INFORMATION_SCHEMA:
SELECT DISTINCT
TABLE_NAME,
INDEX_NAME
FROM INFORMATION_SCHEMA.STATISTICS
WHERE TABLE_SCHEMA = 'your_schema';
Removing ...
Android destroying activities, killing processes
... 1 is resumed), there is no service connected. I press HOME button so that all of my activities are stopped.
I start some other memory consuming application and overall device memory is starting to be low. And the question is
...
Correct format specifier to print pointer or address?
... standard (ISO/IEC 9899:1999) says in §7.19.6.1 ¶8:
p The argument shall be a pointer to void. The value of the pointer is
converted to a sequence of printing characters, in an implementation-defined
manner.
(In C11 — ISO/IEC 9899:2011 — the information is in §7.21.6.1 ¶8.)
On som...
Is it possible to insert multiple rows at a time in an SQLite database?
...blename'
SELECT 'data1' AS 'column1', 'data2' AS 'column2'
UNION ALL SELECT 'data1', 'data2'
UNION ALL SELECT 'data1', 'data2'
UNION ALL SELECT 'data1', 'data2'
a note on performance
I originally used this technique to efficiently load large datasets from Ruby on Rails. However, as Jaime...
git difftool, open all diff files immediately, not in serial
...
This feature works well with Meld 3.14.2 for example, and lets you browse all modified files:
git difftool --dir-diff --tool=meld HEAD~ HEAD
This is a handy Bash function:
git-diff-meld() (
git difftool --dir-diff --tool=meld "${1:-HEAD~}" "${2:-HEAD}"
)
The answer that follows applies to g...
What is the rationale for all comparisons returning false for IEEE754 NaN values?
Why do comparisons of NaN values behave differently from all other values?
That is, all comparisons with the operators ==, =, where one or both values is NaN returns false, contrary to the behaviour of all other values.
...
MySQL error 1449: The user specified as a definer does not exist
... options:
1. Change the DEFINER
This is possibly easiest to do when initially importing your database objects, by removing any DEFINER statements from the dump.
Changing the definer later is a more little tricky:
How to change the definer for views
Run this SQL to generate the necessary ALTER ...
Unit testing Anti-patterns catalogue
anti-pattern : there must be at least two key elements present to formally distinguish an actual anti-pattern from a simple bad habit, bad practice, or bad idea:
...