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Check Whether a User Exists
I want to create a script to check whether a user exists. I am using the logic below:
17 Answers
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Iterate two Lists or Arrays with one ForEach statement in C#
This just for general knowledge:
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Copy a table from one database to another in Postgres
...ing to copy an entire table from one database to another in Postgres. Any suggestions?
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How to get the ASCII value of a character
How do I get the ASCII value of a character as an int in Python ?
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PHP: How to remove all non printable characters in a string?
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7 bit ASCII?
If your Tardis just landed in 1963, and you just want the 7 bit printable ASCII chars, you can rip out everything from 0-31 and 127-255 with this:
$string = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $string);
It matches anythi...
How to get string objects instead of Unicode from JSON?
I'm using Python 2 to parse JSON from ASCII encoded text files.
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What is a “surrogate pair” in Java?
I was reading the documentation for StringBuffer , in particular the reverse() method. That documentation mentions something about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates?
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Add all files to a commit except a single file?
I have a bunch of files in a changeset, but I want to specifically ignore a single modified file. Looks like this after git status :
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Run a PostgreSQL .sql file using command line arguments
I have some .sql files with thousands of INSERT statements in them and need to run these inserts on my PostgreSQL database in order to add them to a table. The files are that large that it is impossible to open them and copy the INSERT statements into an editor window and run them there. I found on ...
How do I specify a password to 'psql' non-interactively?
I am trying to automate database creation process with a shell script and one thing I've hit a road block with passing a password to psql .
Here is a bit of code from the shell script:
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