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Naming convention for unique constraint
Naming conventions are important, and primary key and foreign key have commonly used and obvious conventions ( PK_Table and FK_Table_ReferencedTable , respectively). The IX_Table_Column naming for indexes is also fairly standard.
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Immediate function invocation syntax
...at it is clear that the value being produced is the result of the function and not the function itself.
So, basically, he feels it makes more clear the distinction between function values, and the values of functions. So, it's an stylistic matter, not really a substantive difference in the code its...
Create a variable name with “paste” in R?
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In my case function eval() works very good. Below I generate 10 variables and assign them 10 values.
lhs <- rnorm(10)
rhs <- paste("perf.a", 1:10, "<-", lhs, sep="")
eval(parse(text=rhs))
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Requests — how to tell if you're getting a 404
I'm using the Requests library and accessing a website to gather data from it with the following code:
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What does the “@” symbol mean in reference to lists in Haskell?
... = Tree a [Tree a], then t@(Tree _ kids) gives you access to both the tree and its children.
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Why use @Scripts.Render(“~/bundles/jquery”)
... any formatting (also referred as minified) into a single file for saving bandwith and number of requests to load a page.
As example you could create your own bundle:
bundles.Add(New ScriptBundle("~/bundles/mybundle").Include(
"~/Resources/Core/Javascripts/jquery-1.7.1.min.js",
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How to vertical align an inline-block in a line of text?
I want to create an inline-block that will take on some unknown width and height. (It'll have a table inside it with content dynamically generated). Further, the inline-block should be placed inside a line of text, such as "my text (BLOCK HERE)". To make it look pretty, I'm trying to make the blo...
Accessing outside variable using anonymous function as params
Basically I use this handy function to processing db rows (close an eye on PDO and/or other stuff)
2 Answers
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MySQL Fire Trigger for both Insert and Update
Is it possible to fire a mysql trigger for both the insert and update events of a table?
3 Answers
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How to find the size of an array in postgresql
...e trick. Or if you know that the array is 1-dimensional (which is likely) and are running PostgreSQL 9.4 or higher, you can use cardinality:
SELECT cardinality(id) FROM example;
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