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What difference does .AsNoTracking() make?
...erhaps some fields are nullable or the nature of the view is not logically indexable.
For these cases the "key" can be set to any non-nullable column but then AsNoTracking() must be used with every query else records (duplicate by key) will be skipped.
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Find() vs. Where().FirstOrDefault()
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It is because Find makes use of the primary keys (hence indexes), whereas Where is a plain sql query
– percebus
Feb 9 '16 at 19:56
4
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Heroku + node.js error (Web process failed to bind to $PORT within 60 seconds of launch)
... Here's an example: github.com/heroku/node-js-getting-started/blob/master/index.js
– Pablo
Apr 28 '16 at 11:39
3
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Is it possible to make an HTML anchor tag not clickable/linkable using CSS?
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Or purely HTML and CSS with no events:
<div style="z-index: 1; position: absolute;">
<a style="visibility: hidden;">Page link</a>
</div>
<a href="page.html">Page link</a>
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How do I concatenate two arrays in C#?
...ng data, because list just wraps array inside and has overhead for calling indexer.
– C0DEF52
May 26 '18 at 22:15
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How do I find the last occurrence of a substring in an NSString?
...er NSString? For example, in "abc def ghi abc def ghi," I want to find the index of the second "abc," not the first. I know I could do this with a bunch of rangeOfStrings, but is there already a function for that?
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How do I run two commands in one line in Windows CMD?
...XP Professional Product Documentation, Command shell overview
Also: An A-Z Index of Windows CMD commands
Using multiple commands and conditional processing symbols
You can run multiple commands from a single command line or script using conditional processing symbols. When you run multiple...
How to access a dictionary element in a Django template?
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Attribute lookup (e.g., foo.bar)
Method call (e.g., foo.bar())
List-index lookup (e.g., foo[2])
The system uses the first lookup type
that works. It’s short-circuit logic.
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Looping through a hash, or using an array in PowerShell
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Here is another quick way, just using the key as an index into the hash table to get the value:
$hash = @{
'a' = 1;
'b' = 2;
'c' = 3
};
foreach($key in $hash.keys) {
Write-Host ("Key = " + $key + " and Value = " + $hash[$key]);
}
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What's the meaning of exception code “EXC_I386_GPFLT”?
... 32- or 64-bit OS (such as loading segment registers with invalid selector index or writing to MSR's (model specific registers)).
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