Top "Lookup" questions

is locking necessary for Dictionary lookup?

lock(dictionaryX) { dictionaryX.TryGetValue(key, out value); } is locking necessary while doing lookups to a Dictionary ? THe program is multithreaded, …

c# multithreading dictionary locking lookup

Django filter() lookup type documentation

I looked on Django's documentation and Googled every varation of the phrase but I cannot find any documentation that exactly …

python django filter lookup

How to convert string to objectId in LocalField for $lookup Mongodb

I want to add join collections using $lookup in mongodb. I am trying as below { $lookup:{ from:"User", localField:"assignedId", …

mongodb join lookup

Is there a publicly available list of the US States in machine readable form?

Where can I find a list of the US States in a form for importing into my database? SQL would …

sql csv list lookup

How do I convert a Dictionary to a Lookup?

I have a Dictionary that has a signature: Dictionary<int, List<string>>. I'd like to convert …

c# .net list dictionary lookup

Dynamics AX 2012 - Custom Lookup in a dialog

So, I am working on a class called DMFWriteExportData and trying to get it run in Batch. I am at …

dialog lookup x++ customdialog dynamics-ax-2012-r2

Getting a full copy of the WHOIS database

I'm interested in getting access to a full WHOIS database in order to expand on a domain-profile project I'm working …

dns lookup whois

Decision between storing lookup table id's or pure data

I find this comes up a lot, and I'm not sure the best way to approach it. The question I …

sql database lookup database-normalization

JavaScript LHS and RHS Lookup

I was reading the Scopes and Closure of You don't know JS book by Kyle Simpson, specifically this topic Compiler …

javascript lookup

What is a practical way to model lookup tables in Domain Driven Design (DDD)?

I'm just learning DDD (Eric Evans book is open in front of me) and I've come across a problem that …

domain-driven-design lookup