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When to add what indexes in a table in Rails
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How to find out client ID of component for ajax update/render? Cannot find component with expression
...r character (called an "absolute" search expression), the base will be the root UIComponent of the component tree. The leading separator character will be stripped off, and the remainder of the search expression will be treated as a "relative" search expression as described below.
Otherwise, if th...
Using Transactions or SaveChanges(false) and AcceptAllChanges()?
...ich database it's talking to, Rollback() is called in case it's talking to MySql or something that doesn't have that automatic behavior.
– Jared
Jun 13 '16 at 20:52
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LINQ-to-SQL vs stored procedures? [closed]
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LINQ to Entities works with Postgres and MySql in addition to MSSQL. Not sure, but I thought I read there was something for Oracle around.
– bbqchickenrobot
Jul 8 '09 at 17:36
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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
...up. Let me demonstrate this:
Usually /bin is a well protected place, only root is able to change anything there. Your home directory is not, though, any program you run is able to make changes to it. That means malicious code could place a fake bash into some hidden directory, modify your .bash_pro...
Abusing the algebra of algebraic data types - why does this work?
.... There's no notion of subtraction of types, let alone division and square roots. So I guess my question is: when can you go from an algebraic manipulation assuming X is an element of the real numbers to a true statement about types, and moreover, where the does the correspondence (coefficient of n...
Why are margin/padding percentages in CSS always calculated against width?
...he simplest case that browsers calculate block widths from the outside in (root to tips), then flow content into those blocks to determine their heights (tips to root).
– sam
Oct 10 '13 at 1:47
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How to generate the “create table” sql statement for an existing table in postgreSQL
... Brilliant bit of code, especially for those of us coming from MySQL, using SHOW CREATE TABLE table_name. Additionally, I'm accessing a database with limited permissions, so this is perfect.
– Eric P
Mar 9 '18 at 22:59
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Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...MS
before assuming all of this still holds.
I've been a Sybase ASE, MySQL, and SQL Server DBA on-and off since for almost a decade (along with application development in C, PHP, PL/SQL, C#.NET, and Ruby). So, I have no particular axe to grind in this (sometimes) holy war.
The historical per...
tcpdump: localhost to localhost [closed]
... Get rid of the use of sudo, be clear and state that this must be run as root.
– Geoffrey
Mar 17 '16 at 9:34
Yea, it...