大约有 40,000 项符合查询结果（耗时：0.0383秒） [XML]
List columns with indexes in PostgreSQL
...constraint uk_test3ab unique (a, b));
List indexes and columns indexed:
select
t.relname as table_name,
i.relname as index_name,
a.attname as column_name
from
pg_class t,
pg_class i,
pg_index ix,
pg_attribute a
where
t.oid = ix.indrelid
and i.oid = ix.indexreli...
`Apache` `localhost/~username/` not working
... finish worked for me: https://www.computersnyou.com/3376/setup-apache-php-mysql-macosx-10-10-yosemite/
Basic instructions added in response to suggestion from rozkosz:
These instructions are for setting up apache from scratch after upgrading the Yosemite. It seems like you've done most of this...
Correct format specifier to print pointer or address?
...e representation and alignment requirements as each other. All pointers to union types shall have the same representation and alignment requirements as each other. Pointers to other types need not have the same representation or alignment requirements.
39) The same representation and alignment ...
Sublime as default editor
... my answer, I have just googled it:
Open regedit (Win+R, type "regedit", select OK).
Navigate to HKEY_CLASSES_ROOT\Applications\sublime_text.exe\shell\open\command
Verify that the path is accurate, correct it if it is not. Exit regedit.
Open task manager via Ctrl+Alt+Del (or Ctrl+Shift+Esc for lat...
Export to CSV via PHP
...ion: close");
}
function getSql()
{
// return you own sql
$sql = "SELECT id, date, params, value FROM sometable ORDER BY date;";
return $sql;
}
function getExportData()
{
$values = array();
$sql = $this->getSql();
if (strlen($sql) > 0)
{
$result = dbquery...
How do I return rows with a specific value first?
...to treat boolean expressions as having a numeric value, then you can use:
SELECT *
FROM `Users`
ORDER BY (`city` = 'New York') DESC, `city`
share
|
improve this answer
|
fo...
Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
... array with [0] equal to true/false indicating whether or not this date is selectable and 1 equal to a CSS class name(s) or '' for the default presentation. It is called for each day in the datepicker before is it displayed.
Display some national holidays in the datepicker.
$(".selector").datepick...
如何获取IE (控件)的所有链接（包括Frameset, iframe） - C/C++ - 清泛网 -...
如何获取IE (控件)的所有链接（包括Frameset, iframe）IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：CComPtr<IHTMLElement> body;...CComPtr<IDispatc...IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节...
Change project name on Android Studio
...
Right-click on your root project directory
Select Refactor -> Rename
Select rename project and change the name there.
Also Select rename module and change it there as well. If you get an message saying module name already changed thats fine.
Now right-click on the ...
How different is Objective-C from C++? [closed]
...that can be done at compile time. For example, using a variant type(like a union) the compiler can enforce that all cases are written or handled. So you don't forget about handling the edge cases of a problem. However, all these checks come at a price when compiling. Obj-C is much faster at compilin...