In DDD, Repository takes care of saving and retrieving domain objects and also serves as collection of Aggregate Roots. My question is how do you retrieve the information for those child entities (let
I am trying to write an aggregate udf for using Sql Server 2008 and C# 3.5 that implodes an aggregation of data.The kind of syntax I am looking for is:
say I have a postgresql table with the following values: id | value ---------- 1| 4 2开发者_Python百科| 8
I have two tables: a Files table, which includes the file type, and a File Properties table, which references the file table via a foreign key. Sample Files table:
HI I have a table which holds files and their types such as CREATE TABLE files ( idSERIAL PRIMARY KEY, nameVARCHAR(255),
I have a data frame in R with the following structure. > testData date exch.code comm.codeoi 11997-12-30CBT1 468710
I have two models, authors and articles: class Author(models.Model): name = models.CharField(\'name\', max_length=100)
I have a few (hopefully) simple questions about aggregate roots in domain driven design: Is it okay to have an aggregate 开发者_StackOverflow中文版root as a property of another aggregate root?
I\'m collecting data from a system every ~10s (开发者_Go百科this time difference varies due to communication time with networked devices).I\'d like to calculate averages and sums of the stored values
I have a table with three columns: patient_id obs_date weight_val 开发者_运维百科 patient_id stores patient identification #, weight_val stores a weight value, and obs_date stores the date when th
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