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Add Foreign Key to existing table
... steps:
ALTER TABLE users ADD grade_id SMALLINT UNSIGNED NOT NULL DEFAULT 0;
ALTER TABLE users ADD CONSTRAINT fk_grade_id FOREIGN KEY (grade_id) REFERENCES grades(id);
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How can I format a number into a string with leading zeros?
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10 Answers
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How do I remove duplicates from a C# array?
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answered Aug 13 '08 at 12:03
Jeff AtwoodJeff Atwood
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How does the extend() function work in jQuery?
... this. +1
– Thariq Nugrohotomo
Jan 20 '15 at 7:33
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$.extend( true, object1, object2 ); and $.ext...
How to test an SQL Update statement before running it?
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– Imad Moqaddem
Jun 13 '12 at 9:06
3
@ImadMoqaddem: I agree and that's why I wrote "Apart fro...
Render HTML to PDF in Django site
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208
Try the solution from Reportlab.
Download it and install it as usual with python setup.py inst...
AngularJS: ng-show / ng-hide not working with `{{ }}` interpolation
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Scott
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answered Sep 26 '12 at 13:08
My Head HurtsMy He...
How to determine an interface{} value's “real” type?
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101
Your example does work. Here's a simplified version.
package main
import "fmt"
func weird(i ...
What is the difference between LR, SLR, and LALR parsers?
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+100
SLR, LALR and LR parsers can all be implemented using exactly the same table-driven machinery.
Fundamentally, the parsing algorith...
Removing numbers from string [closed]
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Would this work for your situation?
>>> s = '12abcd405'
>>> result = ''.join([i for i in s if not i.isdigit()])
>>> result
'abcd'
This makes use of a list comprehension, and what is happening here is similar to this structure:
no_digits = []
# Iterate thro...