大约有 47,000 项符合查询结果（耗时：0.0383秒） [XML]
Is there a [Go to file…]?
...ift-J will do more than just open the project navigator. It'll do that and select the file that's open in the editing area. To Just open the project navigator, use Cmd-1 (or Cmd-2, Cmd-3 to open other navigators), or Cmd-0 to close them all.
– Sanjay Chaudhry
J...
Query a parameter (postgresql.conf setting) like “max_connections”
... SHOW, such as minimum
and maximum values.
For your original request:
SELECT *
FROM pg_settings
WHERE name = 'max_connections';
Finally, there is current_setting(), which can be nested in DML statements:
SELECT current_setting('max_connections');
Related:
How to test my ad-hoc SQL wit...
AVD Manager - Cannot Create Android Virtual Device
...
You either haven't selected a CPU/ABI target in the dropdown below the target, or you haven't installed a system image. Open your SDK manager and ensure that you've installed ARM EABI v7a System Image under the Android 4.2 section.
...
How do I create a basic UIButton programmatically?
...onWithType:UIButtonTypeCustom];
[button addTarget:self
action:@selector(aMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
...
“Default Activity Not Found” on Android Studio upgrade
...e launch activity default?
possibly this could be your mistake
Step 1: Select Edit Configurations
Step 2: watch this warning: Default Activity not found
Step 3: select a default activity
Step 3: Save your changes and finish
Good Luck
...
Using Caps Lock as Esc in Mac OS X
...d fixing bugs.
Here's a screenshot to show a few of the (hundreds of) pre-selectable options:
PQRS also has a great utility called NoEjectDelay that you can use in combination with KeyRemap4MacBook for reprogramming the Eject key. After a little tweaking I have mine set to toggle the AirPort Wif...
How to generate serial version UID in Intellij
...
very nice, very easy to install. you can install that from plugins menu, select install from disk, select the jar file you unpacked in the lib folder. restart, control + ins, and it pops up to generate serial UID from menu. love it. :-)
...
How do I properly escape quotes inside HTML attributes?
...ogleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select>
<option value="&quot;asd">Test</option>
</select>
Alternatively, you can delimit the attribute value with single quotes:
<option value='"asd'>test</option>
...
Efficient paging in SQLite with millions of records
...red field(s), and continue just after them when displaying the next page:
SELECT *
FROM MyTable
WHERE SomeColumn > LastValue
ORDER BY SomeColumn
LIMIT 100;
(This is explained with more detail on the SQLite wiki.)
When you have multiple sort columns (and SQLite 3.15 or later), you can use a ro...
How to enable C++11/C++0x support in Eclipse CDT?
...> Dialect
Put -std=c++11 into text box entitled other dialect flags or select ISO C++11 from the Language standard drop down.
For CMake project
Generate eclipse project files (inside your project)
mkdir build
cd build
cmake -G"Eclipse CDT4 - Unix Makefiles" -D CMAKE_BUILD_TYPE=Debug ..
Then...