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MIN/MAX vs ORDER BY and LIMIT
...ay' and 'NULL' rows) whereas the SORT and LIMIT still needs needs to do an ordered traversal of the index (106,000 rows). The actual performance impact is probably negligible.
It looks like MIN() is the way to go - it's faster in the worst case, indistinguishable in the best case, is standard SQL ...
nginx error connect to php5-fpm.sock failed (13: Permission denied)
... socket, if one is used. In Linux, read/write
; permissions must be set in order to allow connections from a web server. Many
; BSD-derived systems allow connections regardless of permissions.
; Default Values: user and group are set as the running user
; mode is set to 0660
;listen...
In C/C++ what's the simplest way to reverse the order of bits in a byte?
While there are multiple ways to reverse bit order in a byte, I'm curious as to what is the "simplest" for a developer to implement. And by reversing I mean:
...
How to avoid long nesting of asynchronous functions in Node.js
... look at flow-js, step and async and it seems that they only deal with the order of function execution. In my case there is access to inline closure variables in every indentation. So for example the functions work like this: get HTTP req/res, get userid from DB for cookie, get email for the later u...
What is an AngularJS directive?
...entation, directives are structures you can write that angularjs parses in order to create objects and behaviors.In other words it's a template in which you use mix of any arbitrary nodes and pseudo-javascript and placeholders for data to express intentions of how your widget (component) is structur...
Unioning two tables with different number of columns
...
I came here and followed above answer. But mismatch in the Order of data type caused an error. The below description from another answer will come handy.
Are the results above the same as the sequence of columns in your table? because oracle is strict in column orders. this example ...
string.ToLower() and string.ToLowerInvariant()
...d is recommended when a collection of strings must appear in a predictable order in a user interface control.
also
...ToLower is very similar in most places to ToLowerInvariant. The documents indicate that these methods will only change behavior with Turkish cultures. Also, on Windows systems...
Web Service vs WCF Service
...nce of DataContractSerializer and XmlSerializer is that DCS requires field ordering - which is why I don't use DCS for non-transient serialization or contracts! Thus it's possible to break a service used by clients not using the fixed ordering when moving to DCS (or moving to DCS but in a different ...
How can I autoformat/indent C code in vim?
...below, etc. All the options are controlled by command line parameters.
In order to use it in vim, just set the formatprg option to it, and then use the gq command. So, for example, I have in my .vimrc:
autocmd BufNewFile,BufRead *.cpp set formatprg=astyle\ -T4pb
so that whenever I open a .cpp fi...
JPA eager fetch does not join
...loading when constructing a customer class with a collection for customer orders. If you retrieved every order for a customer when you wanted to get a customer list this may be a expensive database operation when you only looking for customer name and contact details. Best to leave the db access ti...