大约有 40,000 项符合查询结果（耗时：0.0634秒） [XML]
mysql check collation of a table
...luding the collation.
For example SHOW TABLE STATUS where name like 'TABLE_NAME'
share
|
improve this answer
|
follow
|
...
pandas: multiple conditions while indexing data frame - unexpected behavior
...
You can use query(), i.e.:
df_filtered = df.query('a == 4 & b != 2')
share
|
improve this answer
|
follow
|
...
Convert SQLITE SQL dump file to POSTGRESQL
...made constraint such as this:
CREATE TABLE tablename (
...
unsigned_column_name integer CHECK (unsigned_column_name > 0)
);
While SQLite defaults null values to '', PostgreSQL requires them to be set as NULL.
The syntax in the SQLite dump file appears to be mostly compatible with Postgre...
How to define an enumerated type (enum) in C?
...one like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strategy;
strategy my_strategy = IMMEDIATE;
Having a naming convention to dist...
Execute PowerShell Script from C# with Commandline Arguments
...
Collection<PSObject> psresults;
using (Pipeline pipeline = _runspace.CreatePipeline())
{
pipeline.Commands.AddScript(cmdArg);
pipeline.Commands[0].MergeMyResults(PipelineResultTypes.Error, PipelineResultTypes.Output);
psresu...
Displaying files (e.g. images) stored in Google Drive on a website
...
Here's the simple view link:
https://drive.google.com/uc?id=FILE_ID
e.g. https://drive.google.com/uc?id=0B9o1MNFt5ld1N3k1cm9tVnZxQjg
You can do the same for other file types, e.g. MP3, PDF, etc.
share
...
PHP DOMDocument errors/warnings on html5-tags
...est workable solution is going to be to disable error reporting with libxml_use_internal_errors:
$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML('...');
libxml_clear_errors();
share
|
...
month name to month number and vice versa in python
...calendar module:
import calendar
{v: k for k,v in enumerate(calendar.month_abbr)}
Before Python (2.7+) you would do
dict((v,k) for k,v in enumerate(calendar.month_abbr))
share
|
improve this answ...
Grab a segment of an array in Java without creating a new array on heap
... that ByteBuffer objects can be fairly easily decoded: StandardCharsets.UTF_8.decode(ByteBuffer.wrap(buffer, 0, readBytes))
– skeryl
Dec 28 '15 at 21:15
...
Difference between this and self in self-type annotations?
...
btw you can also do _: B => for the non-alias case for simplicity
– Creos
Jun 19 '19 at 17:29
add a comment
...