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psycopg2: insert multiple rows with one query
...s import execute_values
execute_values(cur,
"INSERT INTO test (id, v1, v2) VALUES %s",
[(1, 2, 3), (4, 5, 6), (7, 8, 9)])
Previous Answer:
To insert multiple rows, using the multirow VALUES syntax with execute() is about 10x faster than using psycopg2 executemany(). Indeed, executemany(...
JavaScript module pattern with example [closed]
...g optimized file requires the loader library (just re-checked it with r.js v2.1.14), which is usually quite weighty. As soon as we have compiled code we do not need resolving asynchronously loaded dependencies, we do not need this library. Just consider: we wrap modules into AMD, that means async. ...
Convert pem key to ssh-rsa format
...A pair
in PEM format:
openssl rsa -in dummy-xxx.pem -pubout
in OpenSSH v2 format see:
ssh-keygen -y -f dummy-xxx.pem
Notes
OS and software version:
[user@test1 ~]# cat /etc/redhat-release ; uname -a ; openssl version
CentOS release 6.5 (Final)
Linux test1.example.local 2.6.32-431.el6.x86_6...
Difference between “git add -A” and “git add .”
...
I don't think this is correct. Using git v2.10.windows.2 'git add' returns 'Nothing specified, nothing added'. 'git add -A' adds all changed files. Which suggests '-A' is not the default.
– Neutrino
Oct 5 '17 at 12:47
...
Best way to test exceptions with Assert to ensure they will be thrown
...
Now, 2017, you can do it easier with the new MSTest V2 Framework:
Assert.ThrowsException<Exception>(() => myClass.MyMethodWithError());
//async version
await Assert.ThrowsExceptionAsync<SomeException>(
() => myObject.SomeMethodAsync()
);
...
How can I do string interpolation in JavaScript?
...them simply as
> `foo
... bar`
'foo\n bar'
Note: I used io.js v2.4.0 to evaluate all the template strings shown above. You can also use the latest Chrome to test the above shown examples.
Note: ES6 Specifications are now finalized, but have yet to be implemented by all major browsers. ...
Git diff -w ignore whitespace only at start & end of lines
...ks you to be explicit. See some options here: https://git-scm.com/book/en/v2/Customizing-Git-Git-Configuration
As stated, git diff -b or git diff --ignore-space-change will ignore spaces at line ends. If you desire that setting to be your default behavior, the following line adds that intent to y...
Using GCC to produce readable assembly?
...code on the file foo.s.
Ripped straight from http://www.delorie.com/djgpp/v2faq/faq8_20.html (but removing erroneous -c)
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Is there a way to make a PowerShell script work by double clicking a .ps1 file?
...: J.P. Blanc - jean-paul_blanc@silogix-fr.com
Prerequisite: PowerShell V2 on Vista and later versions.
Copyright 2010 - Jean Paul Blanc/Silogix
.LINK
Script posted on:
http://www.silogix.fr
.EXAMPLE
PS C:\silogix> Set-PowAsDefault -On
Call Powershell for .PS1 files.
Do...
How to compare two files not in repo using git
...23) that "--no-index" was not respected. This was fixed in Git for Windows v2.21.0 (February 26th 2019).
– StackzOfZtuff
Jun 27 '19 at 11:18
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