大约有 6,887 项符合查询结果（耗时：0.0361秒） [XML]
Changing the size of a column referenced by a schema-bound view in SQL Server
...ame problem and unfortunately we are using SCHEMABINDING views in order to index the views. So in my case I'm not using SCHEMABINDING to explicitly block changes to the underlying tables but only to comply with requirements of SQL Server to used indexed views. I would also like to bypass this withou...
Split string into an array in Bash
...for element in "${array[@]}"
do
echo "$element"
done
To get both the index and the value:
for index in "${!array[@]}"
do
echo "$index ${array[index]}"
done
The last example is useful because Bash arrays are sparse. In other words, you can delete an element or add an element and then the...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
...
Beginning with MongoDB 2.4, it's no longer necessary to rely on a unique index (or any other workaround) for atomic findOrCreate like operations.
This is thanks to the $setOnInsert operator new to 2.4, which allows you to specify updates which should only happen when inserting documents.
This, c...
Get event listeners attached to node using addEventListener
...isteners
var register_element=function(element){
if(_elements_.indexOf(element)==-1){
// NB : split by useCapture to make listener easier to find when removing
var elt_listeners=[{/*useCapture=false*/},{/*useCapture=true*/}];
_elements_.push(element);
...
Should you commit .gitignore into the Git repos?
...ly do commit .gitignore. In fact, I personally go as far as making sure my index is always clean when I'm not working on something. (git status should show nothing.)
There are cases where you want to ignore stuff that really isn't project specific. For example, your text editor may create automatic...
Equals(=) vs. LIKE
...ne of 3 million rows and one of 10 thousand rows.
When using a like on an index as below(no wildcards), it took about 30 seconds:
where login like '12345678'
using 'explain' I get:
When using an '=' on the same query, it took about 0.1 seconds:
where login ='12345678'
Using 'explain' I g...
Can you pass parameters to an AngularJS controller on creation?
...he vehicle for stitching the pieces together.
Here's an example:
<!-- index.html -->
<div id="module1">
<div ng-controller="MyCtrl">
<div>{{foo}}</div>
</div>
</div>
<div id="module2">
<div ng-controller="MyCtrl">
&l...
ReactJS Two components communicating
...ate.listItems.filter(function(item) {
var match = item.toLowerCase().indexOf(this.state.nameFilter.toLowerCase());
return (match !== -1);
}.bind(this));
var content;
if (displayedItems.length > 0) {
var items = displayedItems.map(function(item) {
return <...
How do I get currency exchange rates via an API such as Google Finance? [closed]
...Central Bank Feed
Docs:
http://www.ecb.int/stats/exchange/eurofxref/html/index.en.html#dev
Request: http://www.ecb.int/stats/eurofxref/eurofxref-daily.xml
XML Response:
<!-- language: lang-xml -->
<Cube>
<Cube time="2015-07-07">
<Cube currency="USD" rate="1...
Is there a way to force ASP.NET Web API to return plain text?
...iController
{
[System.Web.Http.HttpGet]
public HttpResponseMessage Index()
{
return "Salam".ToHttpResponseMessage();
}
}
By routing {DOMAIN}/api/Home/Index you can see the following plain text:
MyPlainTextResponse
...