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Get list of all tables in Oracle?
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Querying user_tables and dba_tables didn't work.
This one did:
select table_name from all_tables
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What's the difference between “ ” and “ ”?
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One is non-breaking space and the other is a regular space. A non-breaking space means that the line should not be wrapped at that point, just like it wouldn’t be wrapped in the middle of a word.
Furthermore as Svend point...
Git in Powershell saying 'Could not find ssh-agent'
...merous ways to resolve the error, based on the likes to all other answers. One known to work is quoted below. Scan though other answers they may be more appropriate for you.
When I restarted my PowerShell prompt, it told me it could not start SSH Agent.
It turns out that it was not able to find the...
Bash: Strip trailing linebreak from output
...I disagree with the OP's decision to choose the accepted answer. I believe one should avoid using 'xargs' where possible. Yes, it's a cool toy. No, you do not need it here.
If your expected output may contain multiple lines, you have another decision to make:
If you want to remove MULTIPLE newli...
viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
...'t perform my actions on viewDidLoad as it's only called once! Hmm, tricky one!
– Michael Waterfall
Nov 30 '09 at 11:56
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Why does “split” on an empty string return a non-empty array?
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If you split an orange zero times, you have exactly one piece - the orange.
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Change multiple files
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Better yet:
for i in xa*; do
sed -i 's/asd/dfg/g' $i
done
because nobody knows how many files are there, and it's easy to break command line limits.
Here's what happens when there are too many files:
# grep -c aaa *
-bash: /bin/grep: Argument list too long
# for i in *; do g...
node.js shell command execution
... child process and return immediately regardless of whether some, all, or none of the data has been read off of stdout. As such, when you run
console.log(foo.stdout);
you get whatever happens to be stored in foo.stdout at the moment, and there's no guarantee what that will be because your child p...
Where to place $PATH variable assertions in zsh?
...be using (i.e. .zshenv which does not currently exist in my installation), one of the ones I am currently using, or does it even matter?
There's a bunch of files read on startup (check the linked man pages), and there's a reason for that - each file has it's particular place (settings for every us...
How does delete[] “know” the size of the operand array?
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ONE OF THE approaches for compilers is to allocate a little more memory and to store a count of elements in a head element.
Example how it could be done:
Here
int* i = new int[4];
compiler will allocate sizeof(int)*5 b...