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Distributed sequence number generation?
I've generally implemented sequence number generation using database sequences in the past.
13 Answers
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Query EC2 tags from within instance
Amazon recently added the wonderful feature of tagging EC2 instances with key-value pairs to make management of large numbers of VMs a bit easier.
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Rails migration for has_and_belongs_to_many join table
How do I do a script/generate migration to create a join table for a has_and_belongs_to_many relationship?
6 Answers
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IN clause and placeholders
I'm attempting to do the following SQL query within Android:
9 Answers
9
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Bundle ID Suffix? What is it?
...ve a company, leave your name, it doesn't matter as long as both bundle id in info.plist file and the one you've submitted in iTunes Connect match.
In Bundle ID Suffix you should write full name of bundle ID.
Example:
Bundle ID suffix = thebestapp (NOT CORRECT!!!!)
Bundle ID suffix = com.awesom...
Correct use of Multimapping in Dapper
I'm trying to use the Multimapping feature of dapper to return a list of ProductItems and associated Customers.
6 Answers...
Wildcards in jQuery selectors
I'm trying to use a wildcard to get the id of all the elements whose id begin with "jander". I tried $('#jander*') , $('#jander%') but it doesn't work..
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Finding duplicate rows in SQL Server
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select o.orgName, oc.dupeCount, o.id
from organizations o
inner join (
SELECT orgName, COUNT(*) AS dupeCount
FROM organizations
GROUP BY orgName
HAVING COUNT(*) > 1
) oc on o.orgName = oc.orgName
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LINQ - Full Outer Join
... a first name and some don't have a surname; I'd like to do a full outer join on the two lists.
16 Answers
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When to add what indexes in a table in Rails
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Should I add "index" to all the foreign keys like "xxx_id"?
It would be better, because it accelerates the search in sorting in this column. And Foreign keys are something searched for a lot.
Since Version 5 of rails the index will be c...