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MySQL vs MongoDB 1000 reads
... to perform:
One index lookup on the collection (assuming the entity is fetched by id)
Retrieve the contents of one database page (the actual binary json document)
So a b-tree lookup, and a binary page read. Log(n) + 1 IOs. If the indexes can reside entirely in memory, then 1 IO.
In MySQL with ...
What's the difference between text/xml vs application/xml for webservice response
...e. We use files that are mostly readable but do have base64 encoded nodes, etc..
– Joe Phillips
Feb 21 '13 at 16:11
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How to add elements of a Java8 stream into an existing List
...equential stream and this code will work fine for a while, pass all tests, etc. Then, some arbitrary amount of time later, code elsewhere in the system might change to use parallel streams which will cause your code to break.
OK, then just make sure to remember to call sequential() on any stream be...
How to use sessions in an ASP.NET MVC 4 application?
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It's also recommended to not store any sensitive data in them (passwords, etc).
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How can I list ALL grants a user received?
...rants (e.g., grants via roles, system privileges such as select any table, etc.), here are some additional queries:
System privileges for a user:
SELECT PRIVILEGE
FROM sys.dba_sys_privs
WHERE grantee = <theUser>
UNION
SELECT PRIVILEGE
FROM dba_role_privs rp JOIN role_sys_privs rsp ON (...
How to iterate over arguments in a Bash script
...path names.
It is also why standard Unix file names do not contain spaces, etc.
When dealing with file names that may contain spaces and other
troublesome characters, you have to be extremely careful, and I found
long ago that I needed a program that is not standard on Unix.
I call it escape (versi...
List of all index & index columns in SQL Server DB
... is all nulls, you know that none are missing.
Filtering out primary keys etc as in the original request is trivial.
NOTE: Take care with this solution as it doesn't distinguish indexed and included columns.
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Xcode 4.5 Storyboard 'Exit'
... Storyboard, listed under my view controllers along with 'First Responder' etc. A little green icon labeled 'Exit'.
4 Answe...
How do you do Impersonation in .NET?
...e System.Security.Principal namespace:
Newer code (.NET 4.6+, .NET Core, etc.) should generally use WindowsIdentity.RunImpersonated, which accepts a handle to the token of the user account, and then either an Action or Func<T> for the code to execute.
WindowsIdentity.RunImpersonated(tokenHa...
Spring Boot - parent pom when you already have a parent pom
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I am guessing this does pull in the plugins - shade etc?
– chrislovecnm
Jan 7 '15 at 22:58
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