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Git - working on wrong branch - how to copy changes to existing topic branch
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Why is there a difference in checking null against a value in VB.NET and C#?
...g the behaviour of NULL in (most if not all) SQL databases. This is also a more standard (than C#'s) interpretation of three-valued logic, as explained here.
The C# team made different assumptions about what NULL means, resulting in the behaviour difference you show. Eric Lippert wrote a blog about...
Shards and replicas in Elasticsearch
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Since you have "number_of_replicas":1, the replicas cannot be assigned anymore as they are never allocated on the same node where their primary is. That's why you'll have 5 unassigned shards, the replicas, and the cluster status will be YELLOW instead of GREEN. No data loss, but it could be better ...
Get index of element as child relative to parent
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How to insert newline in string literal?
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How do you configure an OpenFileDialog to select folders?
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MySQL - SELECT WHERE field IN (subquery) - Extremely slow why?
... this is notoriously slow.
Only ever use IN with a fixed list of values.
More tips
If you want to make queries faster,
don't do a SELECT * only select
the fields that you really need.
Make sure you have an index on relevant_field to speed up the equi-join.
Make sure to group by on the primary ...
Fastest way to check if a string is JSON in PHP?
...SON. It seems that some people are not aware that JSON allows values to be more than just an object or array. Valid JSON values may be objects, arrays, numbers, strings, booleans, and null.
– zzzzBov
May 8 '15 at 1:30
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Can I set an unlimited length for maxJsonLength in web.config?
...ing the autocomplete feature of jQuery. When I try to retrieve the list of more then 17000 records (each won't have more than 10 char length), it's exceeding the length and throws the error:
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How to make a valid Windows filename from an arbitrary string?
...tead of a simple string; the original version will take longer and consume more memory.
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