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datetime.parse and making it work with a specific format
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Useful GCC flags for C
...rning.
-Waggregate-return: warn if any functions that return structures or unions are defined or called.
-Wcast-qual: warn whenever a pointer is cast to remove a type qualifier from the target type*.
-Wswitch-default: warn whenever a switch statement does not have a default case*.
-Wswitch-enum: war...
How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
...urn intermediate concatenations that will be
-- filtered out later on
UNION ALL
SELECT
c.VehicleID,
(c.Cities + ', ' + l.City) Cities,
l.Rank
FROM
Concatenations c -- this is a recursion!
INNER JOIN RankedLocations l ON
l.VehicleID = c.VehicleID
AND l.R...
How to add onload event to a div element
...here for anyone that comes across this answer w3schools.com/tags/ev_onload.asp - All the HTML elements that currently support onload
– Brandon Benefield
Mar 13 '18 at 18:39
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Are PDO prepared statements sufficient to prevent SQL injection?
...s such as code review or static analysis, or use of an ORM, data layer, or service layer that limits dynamic sql — prepared statements are the primary tool for solving the Sql Injection problem. If you follow good application design principles, such that your data access is separated from the rest...
How to read a local text file?
...nsistent handling of: URL schemes, Redirects, Cross-origin semantics, CSP, Service workers, Mixed Content, Referer". I guess this means goodbye to good ol'FileReaders and HttpRequests (and I won't miss them a bit ;)
– Armfoot
Oct 25 '17 at 17:17
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Postgres: INSERT if does not exist already
...le in Postgres:
INSERT INTO person (name)
SELECT name FROM person
UNION
VALUES ('Bob')
EXCEPT
SELECT name FROM person;
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Is it possible to solve the “A generic array of T is created for a varargs parameter” compiler warni
...they vary, the compiler tries to be too clever in my opinion and creates a union-type generic array. Then it feels compelled to warn you about it. A simpler solution would have been to create Object[] when type cannot be better narrowed down. The above solution forces just that.
To understand this ...
How to change the order of DataFrame columns?
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@FooBar That's not a set union it's a concatenation of two ordered lists.
– Aman
Oct 6 '16 at 22:08
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MySQL INNER JOIN select only one row from second table
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@Fluffeh you have a very nice answer Part 1 - Joins and Unions. :) bookmarked!
– John Woo
Sep 21 '12 at 7:50
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