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How to Update Multiple Array Elements in mongodb
... You should ensure your upgrade procedure is complete with details such as index upgrades and then run
db.adminCommand( { setFeatureCompatibilityVersion: "3.6" } )
Or higher version as is applicable to your installed version. i.e "4.0" for version 4 and onwards at present. This enabled such feat...
CASCADE DELETE just once
...ger primary key);
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "a_pkey" for table "a"
CREATE TABLE
testing=# create table b (id integer references a);
CREATE TABLE
-- put some data in the table
testing=# insert into a values(1);
INSERT 0 1
testing=# insert into a values(2);
INSERT...
How to make custom error pages work in ASP.NET MVC 4
...lowing:
public class ErrorController : Controller
{
public ViewResult Index()
{
return View("Error");
}
public ViewResult NotFound()
{
Response.StatusCode = 404; //you may want to set this to 200
return View("NotFound");
}
}
And the views just the ...
Best way to center a on a page vertically and horizontally? [duplicate]
...background-color: cyan;
border: darkgreen 5px solid;
padding: 5px;
z-index: 100;
}
table {
position: absolute;
top: 0;
left: 0;
}
td {
position: relative;
top: 0;
left: 0;
}
<table>
<tr>
<td>
<div class="centered">This div<br /&...
When is it better to use String.Format vs string concatenation?
I've got a small piece of code that is parsing an index value to determine a cell input into Excel. It's got me thinking...
...
Floating elements within a div, floats outside of div. Why?
...at: left;
border: 3px solid red;
height: 90px;
width: 150px;
z-index: 1;
}
.float:after {
content: 'Float';
color: red;
}
<div class="float"></div>
<div class="block-sibling">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec a diam lectus. Se...
What do people find difficult about C pointers? [closed]
...ted). Here are four ways to access elements of an array:
array notation (indexing) with the
array name
array notation (indexing) with the
pointer name
pointer notation (the *) with the
pointer name
pointer notation (the *) with the
array name
int vals[5] = {10, 20, 30, 40, 50};
int *ptr;
ptr...
Multiple inputs with same name through POST in php
...
@Adam: Possibly. I think you might need to place the index inside the first [] though, such as [0]. That makes the HTML harder to generate, but the data is no harder to read PHP-side
– Eric
Oct 25 '11 at 20:30
...
Is there a software-engineering methodology for functional programming? [closed]
...
@Thorsten the basic idea is set=table, map=index. The hard part is keeping indexes and tables synced but this problem can be solved with better set types. One simple set type I implemented is the keyed-set which is a set which uses a key function to test for unicity. ...
Java lib or app to convert CSV to XML file? [closed]
...l.MarkupBuilder()
// write 'root' element
xml.root {
dataRows.eachWithIndex { dataRow, index ->
// write 'entry' element with 'id' attribute
entry(id:index+1) {
headers.eachWithIndex { heading, i ->
// write each heading with associated content
...