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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...
Detecting if an NSString contains…?
...geOfString:@"is " options:NSCaseInsensitiveSearch];
if(isRange.location == 0) {
//found it...
} else {
NSRange isSpacedRange = [someString rangeOfString:@" is " options:NSCaseInsensitiveSearch];
if(isSpacedRange.location != NSNotFound) {
//found it...
}
}
You can easily add this ...
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...
Rails: How to get the model class name based on the controller class name?
...
190
This will do it:
class HouseBuyersController < ApplicationController
def index
@model...
how to File.listFiles in alphabetical order?
...
answered Aug 26 '11 at 4:08
Ray ToalRay Toal
76.4k1212 gold badges143143 silver badges204204 bronze badges
...
How to replace a single word under cursor?
...
answered Jan 9 '13 at 10:48
Brian AgnewBrian Agnew
248k3535 gold badges309309 silver badges420420 bronze badges
...
Why are there two build.gradle files in an Android Studio project?
...
dependencies {
classpath 'com.android.tools.build:gradle:1.3.0'
}
}
ext {
compileSdkVersion = 23
buildToolsVersion = "23.0.1"
}
In your app\build.gradle
apply plugin: 'com.android.application'
repositories {
mavenCentral()
}
android {
compileSdkVersion rootPro...
MySQL - How to select data by string length
...
502
You are looking for CHAR_LENGTH() to get the number of characters in a string.
For multi-byte...
How can I suppress column header output for a single SQL statement?
... pete |
| 2 | john |
| 3 | mike |
+------+-------+
3 rows in set (0.00 sec)
Credit to ErichBSchulz for pointing out the -N alias.
To remove the grid (the vertical and horizontal lines) around the results use -s (--silent). Columns are separated with a TAB character.
mysql -s ...
use tes...
Generate a random number in the range 1 - 10
...way to tell pg's random() function to get me only numbers between 1 and 10?
7 Answers
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