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Export specific rows from a PostgreSQL table as INSERT SQL script
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Take care that the order of the columns you SELECT matches the order of the columns in the destination database. If it doesn't, this could fail, or worse, succeed but insert bad data.
– Nathan Wallace
Jul ...
trying to animate a constraint in swift
....3, according to your needs, you may choose one of the 3 following ways in order to solve your problem.
#1. Using UIView's animate(withDuration:animations:) class method
animate(withDuration:animations:) has the following declaration:
Animate changes to one or more views using the specified ...
Sort a list by multiple attributes?
...ring']:
'''helper to sort by the attributes named by strings of attrs in order'''
return lambda k: [ getattr(k, attr) for attr in attrs ]
then to use it
# would defined elsewhere but showing here for consiseness
self.SortListA = ['attrA', 'attrB']
self.SortListB = ['attrC', 'attrA']
records =...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...oesn't make sense to have comments for a post that doesn't exist. Same for orders and order items.
In aggregation, the child object can exist irrespective of its parent. If the parent is destroyed, the child object can still exist, as it may be added to a different parent later. e.g.: the relations...
Get last element of Stream/List in a one-liner
...reduce((first, second) -> second);
This implementations works for all ordered streams (including streams created from Lists). For unordered streams it is for obvious reasons unspecified which element will be returned.
The implementation works for both sequential and parallel streams. That migh...
How exactly does __attribute__((constructor)) work?
...that code in .init is run before .ctors and code in .fini after .dtors. If order is relevant that's at least one crude but easy way to distinguish between init/exit functions.
A major drawback is that you can't easily have more than one _init and one _fini function per each loadable module and woul...
Start ssh-agent on login
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You can also use Type=simple. wiki.archlinux.org/index.php/…
– Hans-J. Schmid
Jan 9 '19 at 15:46
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Send POST data using XMLHttpRequest
... not fully answer the OP question because it requires the user to click in order to submit the request. But this may be useful to people searching for this kind of simple solution.
This example is very simple and does not support the GET method. If you are interesting by more sophisticated exampl...
SQL - Update multiple records in one query
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Camille's solution worked. Turned it into a basic PHP function, which writes up the SQL statement. Hope this helps someone else.
function _bulk_sql_update_query($table, $array)
{
/*
* Example:
INSERT INTO mytable (id, a, b, c)
VALUES...
Why is Go so slow (compared to Java)?
...shed as the benchmarks game - shootout.alioth.debian.org/flawed-benchmarks.php
– igouy
Apr 24 '10 at 17:24
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