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MySQL - why not index every field?
...k about index updates were one update trigger all indexes update this is a select all unordered equivalent in time
from this I conclude that you have in this scenario that if you will loose this time is preferable to lose it in a select nor an update because if you will select a field that is not i...
How to “undelete” a deleted folder in Subversion / TortoiseSVN?
... revision there your folder still exists, then right-click that folder and select "Copy to..." and enter the path there you want the folder to be re-created (probably the same path that is already in the text box).
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Styling an input type=“file” button
...gt;
In terms of styling, just hide1 the input element using the attribute selector.
input[type="file"] {
display: none;
}
Then all you need to do is style the custom label element. (example).
.custom-file-upload {
border: 1px solid #ccc;
display: inline-block;
padding: 6px 12px;
...
Explanation of JSONB introduced by PostgreSQL
...h a stable release, there will be two major use cases, when you can easily select between them:
If you only work with the JSON representation in your application, PostgreSQL is only used to store & retrieve this representation, you should use json.
If you do a lot of operations on the JSON val...
ElasticSearch, Sphinx, Lucene, Solr, Xapian. Which fits for which usage? [closed]
... SET NAMES utf8
# query before fetching rows to index
sql_query = SELECT *, id AS pid, CRC32(safetag) as safetag_crc32 FROM hb_posts
sql_attr_uint = pid
# pid (as 'sql_attr_uint') is necessary for sphinx
# this field must be unique
# that is why I like sphinx
# you ...
How to create a jQuery plugin with methods?
... this technique! It doesn't create a new instance for every element in the selector like you think you're doing, instead it creates only a single instance attached to the selector itself. View my answer for a solution.
– Kevin Jurkowski
Apr 10 '14 at 1:14
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jquery if div id has children
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If you add a selector to children, you can also check if an element has children that match a particular selector, like if you want to see if an element has a child of a particular class.
– Muhd
May ...
What is Scala's yield?
...in F# would be
[ for a in args -> a.toUpperCase ]
or
from a in args select a.toUpperCase
in Linq.
Ruby's yield has a different effect.
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How to build a Debian/Ubuntu package from source?
...edge might be out of date on this one, but to address both:
Use dpkg --set-selections. Assuming nullidentd was the package you wanted to stay put, run as root
echo 'nullidentd hold' | dpkg --set-selections
Alternately, since you are building from source, you can use an epoch to set the version n...
More elegant “ps aux | grep -v grep”
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@kxsong: | grep '[t]erminal' selects any line containing the word 'terminal' without putting the word 'terminal' into the process list. What are you trying to achieve with | grep '[r]oot' and how is it not working? There is likely to be a better solution...