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Difference between scaling horizontally and vertically for databases [closed]
...ses and scalability is one of them. What is the difference between horizontally and vertically scaling these databases?
10 ...
entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
... I might be missing something here, but in some ORMs (especially EntityFramework) the data context should always be shortlived. Introducing a static or re-used context will introduce a whole other set of challenges and problems.
– Maritim
Oct 13 ...
IIS 500.19 with 0x80070005 The requested page cannot be accessed because the related configuration d
...ration file is corrupt in some way. However it also says that it can't actually access the config file. So I'd ignore the original message about corruption/lack of validity as this is most likely just the effect of not being able to read the file due to a lack of authorization.
The reason it cannot...
How can I set NODE_ENV=production on Windows?
...nd prompt where you execute the command.
To set environment variables globally so they persist beyond just the single command prompt, you can find the tool from System in Control Panel (or by typing 'environment' into the search box in the start menu).
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How to loop through a directory recursively to delete files with certain extensions
I need to loop through a directory recursively and remove all files with extension .pdf and .doc . I'm managing to loop through a directory recursively but not managing to filter the files with the above mentioned file extensions.
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How can I check if an element exists in the visible DOM?
...f the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to either return a reference to the element or null. If you must ha...
When to use Amazon Cloudfront or S3
...When end users request an object using this domain name, they are automatically routed to the nearest edge location for high performance delivery of your content. (Amazon)
The data served by CloudFront may or may not come from S3. Since it is more optimized for delivery speed, the bandwidth costs ...
An explicit value for the identity column in table can only be specified when a column list is used
...ist. Thus, you have the following options:
Make a column list (either manually or using tools, see below)
OR
make the identity column in tbl_A_archive a regular, non-identity column: If your table is an archive table and you always specify an explicit value for the identity column, why do you eve...
Difference between 'self' and 'total' in Chrome CPU Profile of JS
...otal is how much time was spent in that function, and in the functions it called.
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How to create relationships in MySQL
In class, we are all 'studying' databases, and everyone is using Access. Bored with this, I am trying to do what the rest of the class is doing, but with raw SQL commands with MySQL instead of using Access.
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