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How to store date/time and timestamps in UTC time zone with JPA and Hibernate
...gure JPA/Hibernate to store a date/time in the database as UTC (GMT) time zone? Consider this annotated JPA entity:
11 Answ...
What does f+++++++++ mean in rsync logs?
...e the string YXcstpoguax, where Y is replaced by the type of update being done, X is replaced by the file-type, and the other letters represent attributes that may be output if they are being modified.
The update types that replace the Y are as follows:
A < means that a file is being transferr...
How to check that an element is in a std::set?
...nt if(container.insert(foo).second) {...} has the charm that it needs just one single tree lookup...
– Aconcagua
Dec 1 '16 at 14:20
25
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MySQL show current connection info
...
There are MYSQL functions you can use. Like this one that resolves the user:
SELECT USER();
This will return something like root@localhost so you get the host and the user.
To get the current database run this statement:
SELECT DATABASE();
Other useful functions can ...
What is the 'cls' variable used for in Python classes?
...the class,therefore member with cls is accessed by class name where as the one with self is accessed by instance of the class...it is the same concept as static member and non-static members in java if you are from java background.
...
What is the “-d” in “npm -d install”?
...so refer to this syntax, including the install instructions for at least one npm package.
3 Answers
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...ALC_FOUND_ROWS but when I ran a second query with COUNT(id) it took 0.25 alone.
– transilvlad
Mar 24 '14 at 17:16
2
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What is the difference between require_relative and require in Ruby?
...id.
require will most likely be used to bring in code from a library someone else wrote.
for example, what if you want to use one of the helper functions provided in the active_support library? you'll need to install the gem with gem install activesupport and then in the file require 'active_su...
Pattern to avoid nested try catch blocks?
...fail with an exception. In order to attempt each calculation until we find one that succeeds, I have been doing the following:
...
Bootstrap 3 Navbar Collapse
...trap 4
It's a native functionality: https://getbootstrap.com/docs/4.0/components/navbar/#responsive-behaviors
You have to use .navbar-expand{-sm|-md|-lg|-xl} classes:
<nav class="navbar navbar-expand-md navbar-light bg-light">
Bootstrap 3
@media (max-width: 991px) {
.navbar-header {
...