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Postgres - FATAL: database files are incompatible with server
After restarting my MacBook Pro I am unable to start the database server:
6 Answers
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How to generate the “create table” sql statement for an existing table in postgreSQL
I have created a table in postgreSQL. I want to look at the SQL statement used to create the table but cannot figure it out.
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What is PostgreSQL explain telling me exactly?
...etty straightforward. PostgreSQL's is a little more complicated. I haven't been able to find a good resource that explains it either.
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Why does Pycharm's inspector complain about “d = {}”?
...:
dic = {}
dic['aaa'] = 5
as you could have written
dic = {'aaa': 5}
BTW: The fact that the error goes away if you use the function doesn't necessarily mean that pycharm believes dict() is a literal. It could just mean that it doesn't complain for:
dic = dict()
dic['aaa'] = 5
HTH!
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Covariance and contravariance real world example
I'm having a little trouble understanding how I would use covariance and contravariance in the real world.
9 Answers
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Find value in an array
In Ruby, how can I find a value in an array?
10 Answers
10
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Remove border from IFrame
How would I remove the border from an iframe embedded in my web app? An example of the iframe is:
25 Answers
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How can I open multiple files using “with open” in Python?
... time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement:
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Do you need to use path.join in node.js?
as everyone knows Windows does paths with backslashes where Unix does paths with forward slashes. node.js provides path.join() to always use the correct slash. So for example instead of writing the Unix only 'a/b/c' you would do path.join('a','b','c') instead.
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split string only on first instance - java
I want to split a string by '=' charecter. But I want it to split on first instance only. How can I do that ? Here is a JavaScript example for '_' char but it doesn't work for me
split string only on first instance of specified character
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