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Postgres unique constraint vs index
...ead access to the table.
Adding a constraint does put a table lock (so all selects are blocked) since it is added via ALTER TABLE.
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Elegant solution to duplicate, const and non-const, getters? [duplicate]
...use the data is exposed to the world. Using friend only exposes data to a select few, so gives better encapsulation.
Of course, this is not always possible so you may be stuck with the getters. At the very least, most or all of the "non-trivial chunk of code" should be in one or more private func...
What is stability in sorting algorithms and why is it important?
...Sort
Gnome Sort
Odd–even Sort
Unstable Sorting Algorithms:
Heap sort
Selection sort
Shell sort
Quick sort
Introsort (subject to Quicksort)
Tree sort
Cycle sort
Smoothsort
Tournament sort(subject to Hesapsort)
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#ifdef replacement in the Swift language
...what I wanted by using custom Build Configurations:
Go to your project / select your target / Build Settings / search for Custom Flags
For your chosen target set your custom flag using -D prefix (without white spaces), for both Debug and Release
Do above steps for every target you have
Here's ...
Relational Database Design Patterns? [closed]
... codepages.
Give every column a unique name. This make it easer on join to select the column. It is very difficult if every table has a column "ID" or "Name" or "Description". Use XyzID and AbcID.
Use a resource bundle or equals for complex SQL expressions. It make it easer to switch to another DBMS...
How can I create a “Please Wait, Loading…” animation using jQuery?
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This site has a larger and in my opinion nicer selection of loaders with more customization options preloaders.net
– rorypicko
Dec 22 '13 at 19:35
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Accessing console and devtools of extension's background.js
... by doing a normal "show developer console" then use the dropdown arrow to selects its "javascript environment" then you'll have access to its methods, etc.
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Expression Versus Statement
...abeled_statement
| compound_statement
| expression_statement
| selection_statement
| iteration_statement
| jump_statement
;
expression_statement
: ';'
| expression ';'
;
http://www.lysator.liu.se/c/ANSI-C-grammar-y.html
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How do you disable browser Autocomplete on web form field / input tag?
...(e.g. IE 11 & IE Edge). As soon as the readonly is removed, subsequent selection of the field results in the autocomplete returning.
– Gone Coding
Aug 26 '16 at 14:18
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Launching Google Maps Directions via an intent on Android
...o set the default transit mode in the intent. By default the car option is selected. Can I set Walking as the default mode?
– Bear
Jan 7 '13 at 17:32
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