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Rails :include vs. :joins
...ails. Here is an explaination of what I understood (with examples :))
Consider this scenario:
A User has_many comments and a comment belongs_to a User.
The User model has the following attributes: Name(string), Age(integer). The Comment model has the following attributes:Content, user_id. For a ...
What algorithm does Readability use for extracting text from URLs?
...endChild(_readability_print_css);
})();
And if you follow the JS and CSS files that the above code pulls in you'll get the whole picture:
http://lab.arc90.com/experiments/readability/js/readability.js (this is pretty well commented, interesting reading)
http://lab.arc90.com/experiments/readabili...
Oracle SQL: Update a table with data from another table
...c
FROM table2 t2
WHERE t1.id = t2.id)
WHERE EXISTS (
SELECT 1
FROM table2 t2
WHERE t1.id = t2.id )
Assuming the join results in a key-preserved view, you could also
UPDATE (SELECT t1.id,
t1.name name1,
...
SQL variable to hold list of integers
...
Table variable
declare @listOfIDs table (id int);
insert @listOfIDs(id) values(1),(2),(3);
select *
from TabA
where TabA.ID in (select id from @listOfIDs)
or
declare @listOfIDs varchar(1000);
SET @listOfIDs = ',1,2,3,'; --in this solution need put...
Store print_r result into a variable as a string or text
...ut I want this data to be stored in a variable so that I can write it to a file.
3 Answers
...
Python equivalent for PHP's implode?
...kay I've just found a function that does what I wanted to do;
I read in a file with words in a format like:
Jack/Jill/my/kill/name/bucket
I then split it up using the split() method and once I had the word into an list, I concatenated the words with this method:
concatenatedString = ' - '.join(...
Finding duplicate values in a SQL table
...e all non-aggregated columns in the GROUP BY but this has changed with the idea of "functional dependency":
In relational database theory, a functional dependency is a constraint between two sets of attributes in a relation from a database. In other words, functional dependency is a constraint t...
datetime.parse and making it work with a specific format
I have a datetime coming back from an XML file in the format:
2 Answers
2
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ViewPager PagerAdapter not updating the View
...
@mAndroid you should file a separate question with more details.
– rui.araujo
Sep 15 '11 at 8:53
1
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How to create multiple directories from a single full path in C#?
... Thanks, I didn't know this. The path has to be a directory path, not a file path, right?
– Joan Venge
Jan 25 '10 at 18:26
27
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