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What do the python file extensions, .pyc .pyd .pyo stand for?
What do these python file extensions mean?
2 Answers
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How do I check if an index exists on a table field in MySQL?
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Use SHOW INDEX like so:
SHOW INDEX FROM [tablename]
Docs: https://dev.mysql.com/doc/refman/5.0/en/show-index.html
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Should I use `import os.path` or `import os`?
According to the official documentation , os.path is a module. Thus, what is the preferred way of importing it?
6 Answer...
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
...ate" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query.
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Overloading and overriding
... Hey, this might be old but I still have a question about this. Does overloading make it available to have more functionality with 'one' method? Like I can do this: getStuff(2, "Hello world!"); or I can do this getStuff("Myname", "Mysurname", "Hello World!");? Anyone can confirm this is t...
Pair/tuple data type in Go
While doing the final exercise of the Tour of Go , I decided I needed a queue of ( string , int ) pairs. That's easy enough:
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How to write DataFrame to postgres table?
...e flavors. You can pass a sqlalchemy engine for a postgresql database (see docs). E.g.:
from sqlalchemy import create_engine
engine = create_engine('postgresql://scott:tiger@localhost:5432/mydatabase')
df.to_sql('table_name', engine)
You are correct that in pandas up to version 0.13.1 postgresq...
What's wrong with using $_REQUEST[]?
...ber of posts on here saying not to use the $_REQUEST variable. I usually don't, but sometimes it's convenient. What's wrong with it?
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Advantage of switch over if-else statement
...eed to be considered but are not critical. I've abstracted the snippet so don't hate me for the naming conventions.
22 Ans...
browser sessionStorage. share between tabs?
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var sessionStorage_transfer = function(event) {
if(!event) { event = window.event; } // ie suq
if(!event.newValue) return; // do nothing if no value to work with
if (event.key == 'getSessionStorage') {
// another tab asked for the sessionStorage -> send it
localStorage.set...