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How to do a regular expression replace in MySQL?
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13 Answers
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Difference between timestamps with/without time zone in PostgreSQL
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162
The differences are covered at the PostgreSQL documentation for date/time types. Yes, the trea...
Is there a way to automate the android sdk installation?
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How can I find all matches to a regular expression in Python?
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1 Answer
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Mocking python function based on input arguments
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195
If side_effect is a function then whatever that function returns is
what calls to the moc...
How can I use Timer (formerly NSTimer) in Swift?
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Latex Remove Spaces Between Items in List
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172
It's easier with the enumitem package:
\documentclass{article}
\usepackage{enumitem}
\begin{d...
In Postgresql, force unique on combination of two columns
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CREATE TABLE someTable (
id serial primary key,
col1 int NOT NULL,
col2 int NOT NULL,
unique (col1, col2)
)
autoincrement is not postgresql. You want a serial.
If col1 and col2 make a unique and can't be null then they make a good primary key:
CREATE TABLE someTab...