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How do you rename a table in SQLite 3.0?
...ut I assume that the following is also correct:
ALTER TABLE existing_database.existing_table
RENAME TO new_database.new_table;
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Python - 'ascii' codec can't decode byte
...g it with a u:
Python 2.7.2 (default, Jan 14 2012, 23:14:09)
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> "你好".encode("utf8")
Traceback (most recent call last):
File "<std...
pycharm running way slow
... suggest you some configuration change or workaround to remedy the problem based on the analysis of the provided data.
All the other "solutions" (like enabling Power Save mode and changing the highlighting level) will just hide the real problems that should be fixed.
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How to generate all permutations of a list?
...:r])
break
else:
return
And another, based on itertools.product:
def permutations(iterable, r=None):
pool = tuple(iterable)
n = len(pool)
r = n if r is None else r
for indices in product(range(n), repeat=r):
if len(set(indices)) == r:
...
What does character set and collation mean exactly?
...ead of one.
Choosing the right collation can help performance if your database uses the collation to create an index, and later uses that index to provide sorted results. However, since collation rules are often locale-specific, that index will be worthless if you need to sort results according to ...
How do I parse a string to a float or int?
...e string isn't a valid integer: ValueError: invalid literal for int() with base 10: '545.222', but converting from a float to an int is a supported conversion.
– David Parks
May 7 '18 at 17:46
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Format date and time in a Windows batch script
...
Here is how I generate a log filename (based on http://ss64.com/nt/syntax-getdate.html):
@ECHO OFF
:: Check WMIC is available
WMIC.EXE Alias /? >NUL 2>&1 || GOTO s_error
:: Use WMIC to retrieve date and time
FOR /F "skip=1 tokens=1-6" %%G IN ('WMIC Pat...
How to explain dependency injection to a 5-year-old? [closed]
...ass, it's natural for it to make use of other objects. You may have a database connection, for example, or some other service that you use. These other objects (or services) are dependencies. The simplest way to write the code is simply to create and use those other objects. But this means your ...
How can I open a URL in Android's web browser from my application?
...android.net.Uri instance to the 2nd parameter, and a new Intent is created based on the given data url.
And then, simply call startActivity(Intent intent) to start a new Activity, which is bundled with the Intent with the given URL.
Do I need the if check statement?
Yes. The docs says:
If th...
MySQL how to join tables on two fields
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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