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Retrieving the last record in each group - MySQL
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MySQL 8.0 now supports windowing functions, like almost all popular SQL implementations. With this standard syntax, we can write greatest-n-per-group queries:
WITH ranked_messages AS (
SELECT m.*, ROW_NUMBER() OVER (PARTITION BY name ORDER BY id...
Handler “ExtensionlessUrlHandler-Integrated-4.0” has a bad module “ManagedPipelineHandler” in its mo
... .NET before IIS, as it was for me. Running the command (in my case the 64 bit version) fixed it even though my application is using .NET 4.5.2.
– Coxy
May 17 '16 at 2:51
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CSS to line break before/after a particular `inline-block` item
...hat selector a block with a top or bottom margin to separate rows a little bit.
.1st_item::before
{
content:"";
display:block;
margin-top: 5px;
}
.1st_item
{
color:orange;
font-weight: bold;
margin-right: 1em;
}
.2nd_item
{
color: blue;
}
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How to run SQL script in MySQL?
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For mysql 5.6.10 on Mac, no single quotes are needed for the file path.
– RNA
Jul 13 '13 at 0:39
3
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How to use OpenSSL to encrypt/decrypt files?
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10 Answers
10
Active
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How do I move the turtle in LOGO? [closed]
...e left
NODRAW [ND] - Enter text mode with clear screen
NOWRAP - Prevent drawings from wrapping around screen
PENCOLOR [PC] - Change pen color
PENDOWN [PD] - Turtle leaves trail
PENUP [PU] - Turtle ceases to leave trail
RIGHT ## [RT] - Turn turtle right
SETHEADING [SETH] - Set turtle heading, e.g. SE...
How to get a path to a resource in a Java JAR file
...n't very clear. The approach should be platform independent, though it's a bit hacky way.
– Tombart
Nov 3 '15 at 16:11
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PHP Session Fixation / Hijacking
...sha256 or session.hash_function = sha512.
Send a strong hash: session.hash_bits_per_character in php.ini. Set this to session.hash_bits_per_character = 5. While this doesn't make it any harder to crack, it does make a difference when the attacker tries to guess the session identifier. The ID will...
What's the purpose of using braces (i.e. {}) for a single-line if or loop?
... cases. To
experienced C and C++ programmers, the use of unsigned signals bit
operators. C++ doesn't have a real cardinal type (or any other
effective subrange type); unsigned doesn't work for numeric values,
because of the promotion rules. Numerical values on which no
arithmetic operations would...
Postgresql not creating db with “createdb” as superuser, yet not outputting errors [duplicate]
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that semi-colin for the win!
– Michael Dimmitt
Oct 5 '19 at 22:53
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