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How do write IF ELSE statement in a MySQL query
...
You probably want to use a CASE expression.
They look like this:
SELECT col1, col2, (case when (action = 2 and state = 0)
THEN
1
ELSE
0
END)
as state from tbl1;
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When and why I should use session_regenerate_id()?
...he session_start() ?
I've read that I have to use it to prevent session fixation, is this the only reason?
7 Answers
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What is the difference between a framework and a library?
...Actually these terms can mean a lot of different things depending the context they are used.
For example, on Mac OS X frameworks are just libraries, packed into a bundle. Within the bundle you will find an actual dynamic library (libWhatever.dylib). The difference between a bare library and the fr...
Are there any SHA-256 javascript implementations that are generally considered trustworthy?
...ble figuring out which SHA-256 implementation I can actually trust. I was expecting there to be some kind of authoritative script that everyone used, but I'm finding loads of different projects all with their own implementations.
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Dynamically Changing log4j log level
...e dependencies LogManager.getLogger(Class.forName("org.hibernate.util.JDBCExceptionReporter")).setLevel(Level.FATAL);
– CelinHC
Oct 16 '11 at 18:38
8
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Linq to EntityFramework DateTime
...tement into memory and then use LINQ to Objects to finish filtering:
Context.Article.Where(p => p.StartDate < DateTime.Now)
.ToList()
.Where(p => p.StartDate.AddDays(p.Period) > DateTime.Now);
You could also try the EntityFunctions.AddDays method if you'r...
PostgreSQL Crosstab Query
Does any one know how to create crosstab queries in PostgreSQL?
For example I have the following table:
6 Answers
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What are the differences between various threading synchronization options in C#?
Can someone explain the difference between:
7 Answers
7
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How to navigate through the source code by parts in CamelCase (instead of whole words)?
...Appearance & Behavior | Keymap | Editor Actions. This image shows an example where I access the previous behavior by adding ctrl:
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sqlalchemy flush() and get inserted id?
... of sqlalchemy .6+, there is a very simple solution (I don't know if this exists in prior version, though I imagine it does):
session.refresh()
So, your code would look something like this:
f = Foo(bar=x)
session.add(f)
session.flush()
# At this point, the object f has been pushed to the DB,
# a...