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Difference between local and global indexes in DynamoDB
...h+range6.
You get 5 more range attributes to query on.
Also, there is only one provisioned throughput.
Global Secondary Indexes defines a new paradigm - different hash/range keys per index.
This breaks the original usage of one hash key per table.
This is also why when defining GSI you are required...
What is the difference between buffer and cache memory in Linux?
...me) which would tell us if dirty blocks are counted differently than clean ones. Linux will certainly cache both types (lru as mentioned in the question) but one is far more serious in terms of memory pressure.
– Seth Robertson
Sep 26 '18 at 12:23
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Switch on Enum in Java [duplicate]
... on an enum type, then instead of writing a switch, just call the method - one line of code: done!
enum MyEnum {
SOME_ENUM_CONSTANT {
@Override
public void method() {
System.out.println("first enum constant behavior!");
}
},
ANOTHER_ENUM_CONSTANT {
...
How can I clear the SQL Server query cache?
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One maight also include DBCC FREEPROCCACHE
– jaraics
Sep 28 '11 at 7:42
1
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How to check if a column exists in a SQL Server table?
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In Martin Smith's version, one thing to mention is not to include columnName within square brackets [ ]. When columnName is inside square brackets [ ], it'll give null even if the column exists in the table
– Hemendra
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When is JavaScript synchronous?
...is incorrectly because it allows a more traditional programming model that one might be more used to. The reason it's problematic is that this option will block all JavaScript on the page until it finishes, including all event handlers and timers.
...
DateTime.Now vs. DateTime.UtcNow
...actly are the principles of how the two properties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
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Multiple actions were found that match the request in Web Api
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Is there any advantages of doing one way or another? If I do the secondary do I just have to put the Http action on each method? Is that the big draw back?
– chobo2
Jan 30 '13 at 18:29
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Difference between require, include, require_once and include_once?
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@Prof.Falken Under what circumstances need one require same file more than once?? I can't think of one within my current mind set.
– Weishi Zeng
Oct 14 '14 at 4:53
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How can I change the color of pagination dots of UIPageControl?
... can register a delegate object to get notifications when the user taps on one of the little page dots. If no delegate is registered then the view will not react to touch input.
It's completely fresh from the oven, but seems to work. Let me know if you run into any problems with it.
Future improve...