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How to view revision history for Mercurial file?
...seHg:
Windows users can use Windows Explorer and view the revision history by right-clicking on the file.
For Linux users, you can do it within TortoiseHg but it took me a while to figure out how. You need to right-click on the desired file and select "File History". However, for some mysterious re...
In tmux can I resize a pane to an absolute value
... easier to digest - i.e. :resize-pane -D 10 (Resizes the current pane down by 10 cells). Change D to L, R, U as explained above.
– jordancooperman
Feb 4 '18 at 16:26
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How to apply bindValue method in LIMIT clause?
...the above code threw an error saying "Fatal error: Cannot pass parameter 2 by reference". It doesn't like casting an int there. Instead of (int) trim($_GET['skip']), try intval(trim($_GET['skip'])).
– Will Martin
Apr 8 '11 at 17:01
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What does “#pragma comment” mean?
...leave a comment in the generated object file. The comment can then be read by the linker when it processes object files.
#pragma comment(lib, libname) tells the linker to add the 'libname' library to the list of library dependencies, as if you had added it in the project properties at Linker->In...
String concatenation in MySQL
...omments, you can enable string concatenation with the || operator in MySQL by setting the PIPES_AS_CONCAT SQL mode.
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Is inject the same thing as reduce in ruby?
... they were documented together here . Are they the same thing? Why does Ruby have so many aliases (such as map/collect for arrays)? Thanks a lot.
...
Shell - How to find directory of some command?
...r with locate it can help find files. It uses a database that's maintained by updatedb which is run from a cron job. Since locate searches a database rather than the whole filesystem it's much faster than find (which could be used as a last resort).
– Paused until further notic...
Select multiple columns in data.table by their numeric indices
...ta.table)
dt <- data.table(a = 1, b = 2, c = 3)
# select single column by index
dt[, 2]
# b
# 1: 2
# select multiple columns by index
dt[, 2:3]
# b c
# 1: 2 3
# select single column by name
dt[, "a"]
# a
# 1: 1
# select multiple columns by name
dt[, c("a", "b")]
# a b
# 1: 1 2
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Best way to work with transactions in MS SQL Server Management Studio
...your code in a transaction, and then execute each batch of T-SQL code line by line.
For example,
Begin Transaction
-Do some T-SQL queries here.
Rollback transaction -- OR commit transaction
If you want to incorporate error handling you can do so by using a TRY...CATCH BLOCK. Should an...
What are the complexity guarantees of the standard containers?
...amortized)
v.insert(iterator, value) Insert value at the position indexed by iterator. O(n)
v.pop_back() Remove value from end. O(1)
v.assign(begin, end) Clear the container and copy in the elements from begin to end. O(n...