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Remove Primary Key in MySQL
... an index such that it is possible to perform the equivalent of an indexed SELECT MAX(ai_col) lookup on the table to obtain the maximum column value. Typically, this is achieved by making the column the first column of some table index.
– Quassnoi
Sep 23 '13 at...
How can I see what has changed in a file before committing to git?
...t add -p is a combination of staging, seeing the changes you can stage and selecting them one by one in an interactive manner. See Commit only part of a file in Git for more on git add -p.
– Angelos Asonitis
Apr 7 '19 at 12:50
...
What are the differences between the different saving methods in Hibernate?
...
So in case of detached object, merge will trigger a select whereas update will not ?
– Gab
Mar 17 '14 at 15:44
1
...
How to terminate a window in tmux?
...nd . command-prompt
bind a last-window
bind space command-prompt -p index "select-window"
bind r source-file ~/.tmux.conf
# Options
set -g bell-action none
set -g set-titles on
set -g set-titles-string "tmux (#I:#W)"
set -g base-index 1
set -g status-left ""
set -g status-left-attr bold
set -g stat...
Why is Hibernate Open Session in View considered a bad practice?
...e offers @BatchSize for fetching associations in batches, and FetchMode.SUBSELECT to cope with this scenario, the annotations are affecting the default fetch plan, so they get applied to every business use case. For this reason, a data access layer query is much more suitable because it can be tailo...
Should I use px or rem value units in my CSS? [closed]
...u have to press Alt, and go to View, Text Size.) It's much easier to just select the Zoom option in the browser's main menu (or use Ctrl++/-/mouse wheel).
1 - within statistical error, naturally
If we assume most users scale pages using the zoom option, I find relative units mostly irrelevant. I...
What's the difference between => , ()=>, and Unit=>
...
Four years later and I realize that the answer I selected only answered the question in the title, not the one I actually had (which this one does answer).
– Malvolio
Apr 11 '15 at 7:14
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Using Auto Layout in UITableView for dynamic cell layouts & variable row heights
... table view cell is tapped
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("You tapped cell number \(indexPath.row).")
}
}
Important Note:
It is the following two lines of code (along with auto layout) that make the variable cell height possi...
Why shouldn't all functions be async by default?
...eason to make all methods async if they are not needed to - extensibility. Selective making methods async only works if your code never evolves and you know that method A() is always CPU-bound (you keep it sync) and method B() is always I/O bound (you mark it async).
But what if things change? Yes,...
When is it appropriate to use UDP instead of TCP? [closed]
... I just now ran a test out of curiosity. The test read 1 million records (select * from sometable). I set the number of records to return with each individual client request to be 1, 10, and then 100 (three test runs with each protocol). The server was only two hops away over a 100Mbit LAN. The ...