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SQL, Postgres OIDs, What are they and why are they useful?
...wrap around at 2³²-1. OID are also used to identify data types (see /usr/include/postgresql/server/catalog/pg_type_d.h).
In my experience, the feature is generally unused in most postgres-backed applications (probably in part because they're non-standard), and their use is essentially deprecated:
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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
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Why would one use nested classes in C++?
...ivate:
struct Impl;
std::unique_ptr<Impl> impl;
}
X.cpp:
#include "X.h"
#include <windows.h>
struct X::Impl {
HWND hWnd; // this field is a part of the class, but no need to include windows.h in header
// all private fields, methods go here
void privateMethod(HWN...
Select text on input focus
...defined is not a function on "this" for .select(); and yes jQuery 1.9.1 is included.
– Robbie Smith
Jan 12 '15 at 19:57
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How can I archive git branches?
I have some old branches in my git repository that are no longer under active development. I would like to archive the branches so that they don't show up by default when running git branch -l -r . I don't want to delete them, because I want to keep the history. How can I do this?
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Android: set view style programmatically
....LightStyle);
For more: the list of supported view types and attributes (includes background, padding, margin, etc. and can easily be extended) and installation instructions with additional documentation.
Disclaimer: I'm the original author of said library.
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How to overwrite the previous print to stdout in python?
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How to randomly select rows in SQL?
...t way you do not have to define all of the @randomId1...n parameters. I've included an example below using a CTE to populate the initial table.
DECLARE @NumItems int = 100;
DECLARE @minValue int;
DECLARE @maxValue int;
SELECT @minValue = min(id), @maxValue = max(id) from [TABLE];
DECLARE @range in...
On a CSS hover event, can I change another div's styling? [duplicate]
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Bumped for including mouseout reset
– moodboom
Apr 1 '16 at 19:03
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Database: To delete or not to delete records
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+1 because user friendliness includes limiting my ability to make catastrophic mistakes.
– Jesse
Sep 16 '14 at 11:05
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