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Stash just a single file
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Just in case you actually mean 'discard changes' whenever you use 'git stash' (and don't really use git stash to stash it temporarily), in that case you can use
git checkout -- <file>
Note that git stash is just a quicker and simple alternati...
Use StringFormat to add a string to a WPF XAML binding
...g starts with a {, it provides a mechanism to escape, since {} already has meaning in xaml.
– Reed Copsey
Apr 20 '16 at 19:34
5
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Using comparison operators in Scala's pattern matching system
... don't like this. It's too easy to forget what 0,1, and -1 are supposed to mean.
– DanGordon
Oct 13 '16 at 21:14
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show 1 more comment
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Want to find records with no associated records in Rails
Consider a simple association...
8 Answers
8
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How to add url parameters to Django template url tag?
...ccept the param in the regex:
(urls.py)
url(r'^panel/person/(?P<person_id>[0-9]+)$', 'apps.panel.views.person_form', name='panel_person_form'),
So you use this in your template:
{% url 'panel_person_form' person_id=item.id %}
If you have more than one param, you can change your regex and...
How do you use the “WITH” clause in MySQL?
...)
The request for the feature dates back to 2006.
As mentioned, you provided a poor example - there's no need to perform a subselect if you aren't altering the output of the columns in any way:
SELECT *
FROM ARTICLE t
JOIN USERINFO ui ON ui.user_userid = t.article_ownerid
JOIN CAT...
Find the files that have been changed in last 24 hours
...-mtime -1 -ls
Should be to your liking
The - before 1 is important - it means anything changed one day or less ago.
A + before 1 would instead mean anything changed at least one day ago, while having nothing before the 1 would have meant it was changed exacted one day ago, no more, no less.
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SQLite - UPSERT *not* INSERT or REPLACE
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Assuming three columns in the table: ID, NAME, ROLE
BAD: This will insert or replace all columns with new values for ID=1:
INSERT OR REPLACE INTO Employee (id, name, role)
VALUES (1, 'John Foo', 'CEO');
BAD: This will insert or replace 2 of the column...
Adding console.log to every function automatically
... (that is, without modifying the actual function itself) or via some other means?
6 Answers
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SQL - Update multiple records in one query
...1.config_value = 'value',
t2.config_value = 'value2';
Here is SQLFiddle demo
or conditional update
UPDATE config
SET config_value = CASE config_name
WHEN 'name1' THEN 'value'
WHEN 'name2' THEN 'value2'
ELSE config_val...