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Physical vs. logical / soft delete of database record?
...above, if you had a User table with a unique index on the Username column, then if you do a soft/logical delete on a user named "Chris Shaffer" then that username would not become available for a new user to create a new account with, whereas if you did a hard/physical delete then the username would...
proper way to sudo over ssh
...ly set a password variable before running with read -s -p "Password: " pw, then did echo "$pw" | ..... I've now rolled this into a handy script for myself :).
– kael
Jan 31 '19 at 22:00
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Calculate RSA key fingerprint
...)
If however you get an error like; Could not open a connection to your authentication agent.
Then it means that ssh-agent is not running. You can start/run it with:
ssh-agent bash (thanks to @Richard in the comments) and then re-run ssh-add -l
...
From inside of a Docker container, how do I connect to the localhost of the machine?
...n March the 8th, 2019 and will hopefully be merged to the code base. Until then, a workaround is to use a container as described in qoomon's answer.
2020-01: some progress has been made. If all goes well, this should land in Docker 20.04
TLDR
Use --network="host" in your docker run command, the...
Git keeps asking me for my ssh key passphrase
...ate key to it:
ssh-add
This will ask you your passphrase just once, and then you should be allowed to push, provided that you uploaded the public key to Github.
To save key permanently on macOS:
ssh-add -K
This will persist it after you close and re-open it by storing it in user's keychain.
...
Do you get charged for a 'stopped' instance on EC2? [closed]
...he seconds you use. For example, if you run an instance for 20 seconds and then stop it, we charge for a full one minute. If you run an instance for 3 minutes and 40 seconds, we charge for exactly 3 minutes and 40 seconds of usage
– Deniz
Jan 13 '18 at 5:45
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PostgreSQL error: Fatal: role “username” does not exist
...h9uest in your case):
sudo -u postgres -i
As recommended here or here.
Then try again. Type exit when done with operating as system user postgres.
Or execute the single command createuser as postgres with sudo, like demonstrated by drees in another answer.
The point is to use the operating sys...
Calendar Recurring/Repeating Events - Best Storage Method
... -- Using 1 as a value gives us an event that only happens once
Then, if you have a calendar that loops through every day, grabbing the events for the day it's at, the query would look like this:
SELECT EV.*
FROM `events` EV
RIGHT JOIN `events_meta` EM1 ON EM1.`event_id` = EV.`id`
RIGHT ...
How do you create a remote Git branch?
... name which git gives to the remote you cloned from. Your colleagues would then just pull that branch, and it's automatically created locally.
Note however that formally, the format is:
git push <remote-name> <local-branch-name>:<remote-branch-name>
But when you omit one, it as...
How to stop a program running under Eclipse?
...n up the devices window (in the debug perspective), select the process and then press the stop button on the same window.
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