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Why doesn't Java support unsigned ints?
...t be negative, then it also needs subranges (a la Pascal) because an array index can't be greater than the array size.
– Wayne Conrad
Jan 27 '10 at 5:05
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How to delete a row by reference in data.table?
.... 'keep.idxs'
keep.idxs <- setdiff(DT[, .I], del.idxs); # select row indexes to keep
cols = names(DT);
DT.subset <- data.table(DT[[1]][keep.idxs]); # this is the subsetted table
setnames(DT.subset, cols[1]);
for (col in cols[2:length(cols)]) {
DT.subset[, (col) := DT[[col]][keep...
Rails 4: before_filter vs. before_action
...ifference, in rails app there is CRUD, and seven actions basically by name index, new, create, show, update, edit, destroy.
Rails 4 make it developer friendly to change syntax before filter to before action.
before_action call method before the actions which we declare, like
before_action :set_ev...
Pair/tuple data type in Go
...g interface{}. (I might have used an array rather than a struct to make it indexable like a tuple, but the key idea is the interface{} type)
My other answer shows how you can do something similar that avoids creating a type using anonymous structs.
These techniques have some properties of tuples, ...
How can I alter a primary key constraint using SQL syntax?
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Performance wise there is no point to keep non clustered indexes during this as they will get re-updated on drop and create.
If it is a big data set you should consider renaming the table (if possible , any security settings on it?), re-creating an empty table with the correct keys...
What is the maximum characters for the NVARCHAR(MAX)?
...NOT recomended if your data will never exceed 4000 characters as there are indexing issues.
– HLGEM
Jun 21 '12 at 13:46
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List of standard lengths for database fields
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[N]Varchar sizes do however, affect your indexes.
– RBarryYoung
Nov 7 '13 at 22:37
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Why doesn't requests.get() return? What is the default timeout that requests.get() uses?
...ease take a look at aiohttp documentation aiohttp.readthedocs.io/en/stable/index.html
– Alex Polekha
Nov 4 '17 at 16:13
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What is the difference between and ?
...hereas a section is relevant also for semantics and, in a near future, for indexing by search engines.
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When to use NSInteger vs. int
...NSIntegerMax, as these values will differ on 32-bit and 64-bit systems, so index values, counts and the like: use NSInteger or NSUInteger.
It doesn't hurt to use NSInteger in most circumstances, excepting that it takes up twice as much memory. The memory impact is very small, but if you have a huge...