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Possible to do a MySQL foreign key to one of two possible tables?
...blem I have three tables; regions, countries, states. Countries can be inside of regions, states can be inside of regions. Regions are the top of the food chain.
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jQuery - Add ID instead of Class
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Try this:
$('element').attr('id', 'value');
So it becomes;
$(function() {
$('span .breadcrumb').each(function(){
$('#nav').attr('id', $(this).text());
$('#container').attr('id', $(this).text());
$('.stretch_footer').attr('i...
Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example:
6 Answers
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Can an html element have multiple ids?
I understand that an id must be unique within an HTML/XHTML page.
18 Answers
18
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Grouped LIMIT in PostgreSQL: show the first N rows for each group?
...)
SELECT
*
FROM (
SELECT
ROW_NUMBER() OVER (PARTITION BY section_id ORDER BY name) AS r,
t.*
FROM
xxx t) x
WHERE
x.r <= 2;
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Does functional programming replace GoF design patterns?
...try your hand at "cleaner" FP languages, like ML (my personal favorite, at least for learning purposes), or Haskell, where you don't have the OOP crutch to fall back on when you're faced with something new.
As expected, a few people objected to my definition of design patterns as "patching up sho...
How can I unit test Arduino code?
...o library and microcontroller should be assumed to be either correct or at least consistently incorrect.
When your tests produce output contrary to your expectations, then you likely have a flaw in your code that was tested. If your test output matches your expectations, but the program does not...
Real life example, when to use OUTER / CROSS APPLY in SQL
... FROM sys.parameters pa
WHERE pa.object_id = pr.object_id
ORDER BY pr.name) pa
ORDER BY pr.name,
pa.name
2) Calling a Table Valued Function for each row in the outer query
SELECT *
FROM sys.dm_exec_query_stats AS qs
CROSS APPLY s...
MySQL Insert into multiple tables? (Database normalization?)
...s (username, password)
VALUES('test', 'test');
INSERT INTO profiles (userid, bio, homepage)
VALUES(LAST_INSERT_ID(),'Hello world!', 'http://www.stackoverflow.com');
COMMIT;
Have a look at LAST_INSERT_ID() to reuse autoincrement values.
Edit: you said "After all this time trying to figure it ...
SQL WHERE ID IN (id1, id2, …, idn)
I need to write a query to retrieve a big list of ids.
9 Answers
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