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Multiple columns index when using the declarative ORM extension of sqlalchemy
... have to declare it, everything works the same (make sure you're on recent 0.6 or 0.7 for the declarative A.a wrapper to be interpreted as a Column after the class declaration is complete):
class A(Base):
__tablename__ = 'table_A'
id = Column(Integer, primary_key=True)
a = Column(String...
How to make unicode string with python3
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edited Mar 7 '19 at 10:20
IanS
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answered Jul 2...
In SQL, how can you “group by” in ranges?
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Neither of the highest voted answers are correct on SQL Server 2000. Perhaps they were using a different version.
Here are the correct versions of both of them on SQL Server 2000.
select t.range as [score range], count(*) as [number of occurences]
from (
select case
when score bet...
Should I git ignore xcodeproject/project.pbxproj file?
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130
Update in the light of Swift Package Manager: If you're building a project as a Swift package - ...
how to File.listFiles in alphabetical order?
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answered Aug 26 '11 at 4:08
Ray ToalRay Toal
76.4k1212 gold badges143143 silver badges204204 bronze badges
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What does the [Flags] Enum Attribute mean in C#?
...ght expect in bitwise operations, because by default the values start with 0 and increment.
Incorrect declaration:
[Flags]
public enum MyColors
{
Yellow, // 0
Green, // 1
Red, // 2
Blue // 3
}
The values, if declared this way, will be Yellow = 0, Green = 1, Red = 2, B...
Why are Perl 5's function prototypes bad?
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ikegami
308k1414 gold badges212212 silver badges451451 bronze badges
answered Nov 17 '08 at 22:54
Michael Carm...
Rails: How to get the model class name based on the controller class name?
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190
This will do it:
class HouseBuyersController < ApplicationController
def index
@model...
Truncate (not round) decimal places in SQL Server
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edited Oct 10 '18 at 16:03
Paul
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ans...