大约有 48,000 项符合查询结果(耗时:0.0784秒) [XML]
Media Player called in state 0, error (-38,0)
...app that streams an internet radio station. I have the URL for the station and am setting up the Media Player like
18 Answe...
Is SQL syntax case sensitive?
Is SQL case sensitive. I've used MySQL and SQL Server which both seem to be case in-sensitive. Is this always the case? Does the standard define case-sensitivity?
...
How do I execute a program using Maven?
...</configuration>
</plugin>
invoking mvn exec:java on the command line will invoke the plugin which is configured to execute the class org.dhappy.test.NeoTraverse.
So, to trigger the plugin from the command line, just run:
mvn exec:java
Now, if you want to execute the exec:java goal...
how to change namespace of entire project?
...ace namespace DemoApp with namespace MyApp. After that, build the solution and look for compile errors for unknown identifiers. Anything that fully qualified DemoApp will need to be changed to MyApp.
share
|
...
How to implode array with key and value without foreach in PHP
...
and another way:
$input = array(
'item1' => 'object1',
'item2' => 'object2',
'item-n' => 'object-n'
);
$output = implode(', ', array_map(
function ($v, $k) {
if(is_array($v)){
...
How to list records with date from the last 10 days?
...g the column "date" is of datatype date)
Why don't you just try it?
The standard ANSI SQL format would be:
SELECT Table.date
FROM Table
WHERE date > current_date - interval '10' day;
I prefer that format as it makes things easier to read (but it is the same as current_date - 10).
...
Connecting overloaded signals and slots in Qt 5
... is that there are two signals with that name: QSpinBox::valueChanged(int) and QSpinBox::valueChanged(QString). From Qt 5.7, there are helper functions provided to select the desired overload, so you can write
connect(spinbox, qOverload<int>(&QSpinBox::valueChanged),
slider, &...
Add zero-padding to a string
...for zero filling a string number such as "1.20". I can do this to truncate and fill a simple string number < 10000. num = num.length > 4 ? num.Substring(0,4) : num.PadRight(4,'0');
– Dan Randolph
Apr 14 '17 at 17:59
...
How do I change column default value in PostgreSQL?
...able name, only that table is altered. If ONLY is not specified, the table and all its descendant tables (if any) are altered" postgresql.org/docs/9.3/static/sql-altertable.html
– Yodan Tauber
Dec 20 '15 at 8:41
...
How to create a file in Ruby
I'm trying to create a new file and things don't seem to be working as I expect them too. Here's what I've tried:
9 Answers...
