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Do I need to create indexes on foreign keys on Oracle?
... foreign key constraint creates also an index... i.e. Jet Engine (MSAccess files, Firebird and MySQL)
– bubi
Apr 23 '15 at 15:19
17
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Save PL/pgSQL output from PostgreSQL to a CSV file
...he easiest way to save PL/pgSQL output from a PostgreSQL database to a CSV file?
18 Answers
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How to get the second column from command output?
...d separator] to split the lines on "s:
awk -F '"' '{print $2}' your_input_file
or for input from pipe
<some_command> | awk -F '"' '{print $2}'
output:
A B
C
D
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Rails has_and_belongs_to_many migration
...tical order.
First run your migrations, then edit the generated migration file.
Rails 3
rails g migration create_restaurants_users_table
Rails 4:
rails g migration create_restaurants_users
Rails 5
rails g migration CreateJoinTableRestaurantUser restaurants users
From the docs:
There ...
Background task, progress dialog, orientation change - is there any 100% working solution?
...ss of what the user does in terms of activities (e.g., downloading a large file). You can use an ordered broadcast Intent to either have the activity respond to the work being done (if it is still in the foreground) or raise a Notification to let the user know if the work has been done. Here is a bl...
How to parse JSON in Python?
...
For URL or file, use json.load(). For string with .json content, use json.loads().
#! /usr/bin/python
import json
# from pprint import pprint
json_file = 'my_cube.json'
cube = '1'
with open(json_file) as json_data:
data = json.l...
Gradle: Execution failed for task ':processDebugManifest'
...ions and cannot be merged.
I needed to edit my Manifests and build.gradle file and everything worked again.
To be clear you need to edit the uses-sdk in the AndroidManifest.xml
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="16" />
and the android section, particularly m...
Mix Razor and Javascript code
...bout if this code is in a bundle?? can I write code inside of a javascript file??
– ncubica
Jan 28 '13 at 5:06
2
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Checkbox for nullable boolean
...
just a note: 1. you have to store this file in "Views/Shared/EditorTemplates" 2. you have to name this file "Boolean.cshtml"
– Jarrette
Sep 14 '17 at 19:34
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No visible cause for “Unexpected token ILLEGAL”
...r is thrown.
The same error is raised if, for example, you try to run a js file with a rogue @ character, a misplaced curly brace, bracket, "smart quotes", single quotes not enclosed properly (e.g. this.run('dev1)) and so on.
A lot of different situations can cause this error. But if you don't have...