I can perform the following SQL Server selection of distinct (or non-repeating names) 开发者_如何学运维from a column in one table like so:
I have two models class Employer(models.Model): name = models.CharField(max_length=300, blank=False) id = models.IntegerField()
Sorry if this has been answered before, but all the related questions didn\'t quite seem to match my purpose.
I have a mysql database table as follows id | uid | touid | message | time This database has the messages sent from one person to another person. I need to fetch the latest messages transferred be
Each account is associated with one person and one type of account. I want to SELECT a distinct subset of accounts. In order t开发者_Go百科o be selected the accounts have meet at least one of two crit
Given a linq expression of an object collection \'items\' such as this: var total = (from item in items sel开发者_开发技巧ect item.Value).Distinct().Count()
I am reasonably new to linq and c# so apologies if I am being dumb. I have a query which brings back a list of product info, prices of these products and categories these products are in based on some
Supposing the referenced List below contains 2 elements: Dim Countries = From c In List _ Select New With { .Country = c.Country, .CountryID = c.CountryID }开发者_如何学Python
I have a list which contains duplicate item values (by ID), but with a different (or possibly equal) priority. Duplicate items with same or lower priority should be removed from the list.
I have a query which has multiple tables joined using distincct - left join - order by - limit clause.
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