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How do I execute inserts and updates in an Alembic upgrade script?
...ns you'll need. You don't need every column, just the primary key and the ones you'll be using.
Within the upgrade function, use op.get_bind() to get the current connection, and make a session with it.
Or use bind.execute() to use SQLAlchemy's lower level to write SQL queries directly. This is us...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
... heap,
and then having to find space for large objects amidst all the tiny ones, ART puts all the large objects and bitmaps in a separate heap. And then the small objects go in the separate heap. Also it can defragment.
After ART, if you use Enum Android does not care and this is why the recommenda...
Validating an XML against referenced XSD in C#
...o your XmlReader when you create it. Then you can subscribe to the ValidationEventHandler in the settings to receive validation errors. Your code will end up looking like this:
using System.Xml;
using System.Xml.Schema;
using System.IO;
public class ValidXSD
{
public static void Main()
{
...
How to match all occurrences of a regex
...n String instead of Regexp with the other regexp stuff? It isn't even mentioned anywhere on the docs for Regexp
– Anentropic
Mar 12 '13 at 11:36
9
...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
... describe their
co-operation.
Dockerfile should specify at least one of CMD or ENTRYPOINT commands.
ENTRYPOINT should be defined when using the container as an executable.
CMD should be used as a way of defining default arguments for an ENTRYPOINT command or for executing an ad-hoc com...
nodeValue vs innerHTML and textContent. How to choose?
...[Note: this post is more about sharing a specific data that might help someone than telling people what to do]
In case someone is wondering what's the fastest today:
https://jsperf.com/set-innertext-vs-innerhtml-vs-textcontent
& https://jsperf.com/get-innertext-vs-innerhtml-vs-textcontent (for ...
XPath to select multiple tags
...
One correct answer is:
/a/b/*[self::c or self::d or self::e]
Do note that this
a/b/*[local-name()='c' or local-name()='d' or local-name()='e']
is both too-long and incorrect. This XPath expression will select nodes like...
Can a Windows batch file determine its own file name?
...ble and expands %I to the
fully qualified name of the first one found.
If the environment variable name is not
defined or the file is not found by the
search, then this modifier expands to the
empty string
...
What is the default location for MSBuild logs?
... on minimal output all the time, and why is it like 8 steps to change from one output level to the other? Fix any of these please.
– James
Jul 11 '16 at 1:54
...
Bootstrap 3 breakpoints and media queries
...
Bootstrap 4 Media Queries
// Extra small devices (portrait phones, less than 576px)
// No media query since this is the default in Bootstrap
// Small devices (landscape phones, 576px and up)
@media (min-width: 576px) { ... }
// Medium devices (tablets, 768px and up)
@media (min-width...