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Delete sql rows where IDs do not have a match from another table
I'm trying to delete orphan entries in a mysql table.
3 Answers
3
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z-index not working with fixed positioning
...ee that elements are stacked in this order
The stacking context’s root element (the <html> element in this case)
Positioned elements (and their children) with negative z-index values (higher values are stacked in front of lower values; elements with the same value are stacked accord...
Quick and easy file dialog in Python?
... show only the dialog without any other GUI elements, you have to hide the root window using the withdraw method:
import tkinter as tk
from tkinter import filedialog
root = tk.Tk()
root.withdraw()
file_path = filedialog.askopenfilename()
Python 2 variant:
import Tkinter, tkFileDialog
root = T...
How to execute Python scripts in Windows?
...ectly fixing the relevant registry keys for Python. Set the
HKEY_CLASSES_ROOT\Applications\python26.exe\shell\open\command
key to:
"C:\Python26\python26.exe" "%1" %*
Likely, previously, %* was missing. Similarly, set
HKEY_CLASSES_ROOT\py_auto_file\shell\open\command
to the same value. S...
scp (secure copy) to ec2 instance without password
... arguments in the wrong order. This works:
scp -i mykey.pem somefile.txt root@my.ec2.id.amazonaws.com:/
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Root user/sudo equivalent in Cygwin?
...of the shortcut and check it in the compatability section. Just beware.... root permissions can be dangerous.
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Making Python loggers output all messages to stdout in addition to log file
...tput is handled by the handlers; just add a logging.StreamHandler() to the root logger.
Here's an example configuring a stream handler (using stdout instead of the default stderr) and adding it to the root logger:
import logging
import sys
root = logging.getLogger()
root.setLevel(logging.DEBUG)
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Connect to Amazon EC2 file directory using Filezilla and SFTP
...inux, the default user name is ec2-user. For RHEL5, the user name is often root but might be ec2-user. For Ubuntu, the user name is ubuntu. For SUSE Linux, the user name is root. For Debian, the user name is admin. Otherwise, check with your AMI provider."
Press Connect Button - If saving of passwo...
Using PHP with Socket.io
...of us are only able to get a cheap host that will only let you use php and mysql.
– Lanbo
Oct 24 '11 at 11:55
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How does SSL really work?
...ing. Self-signed?!
Yes, at the end of the certificate chain (a.k.a. the "root"), there will be a certificate that uses it's own keypair to sign itself. This eliminates the infinite recursion problem, but it doesn't fix the authentication problem. Anybody can create a self-signed certificate that s...