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Using pg_dump to only get insert statements from one table within database
...dd -a before the -t if you only want the INSERTs, without the CREATE TABLE etc to set up the table in the first place.
version >= 8.4.0
pg_dump --column-inserts --data-only --table=<table> <database>
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Creating email templates with Django
...to, at some point, switch from using django templates to using a mailchimp etc. set of templates for transactional, templated emails for my own project). It is still a work-in-progress though, but for the example above, you would do:
from templated_email import send_templated_mail
send_templated_ma...
Best way to check if a Data Table has a null value in it
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You can null/blank/space Etc value using LinQ
Use Following Query
var BlankValueRows = (from dr1 in Dt.AsEnumerable()
where dr1["Columnname"].ToString() == ""
|| dr1["Columnna...
How can I rename a database column in a Ruby on Rails migration?
...f your app running, say in different environments or on multiple computers etc, managing edited migrations is a major pain. I only edit a migration if I just created it and realized it was wrong, and haven't run it literally anywhere else yet.
– Yetanotherjosh
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Haskell error parse error on input `='
...site. That's why, to make statements (ie: set variables, define functions, etc) you have to declare that you're doing using let. Think of GHCi as one big let ... in ... statement.
– AJF
Apr 14 '17 at 8:56
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Right way to reverse pandas.DataFrame?
...a time series while remaining agnostic to the time step (day, month, year, etc.). So you may be working with a data frame, do a transformation on it, which messes up the indexing. It’s common to thus reindex the frame.
– Cybernetic
Jul 12 at 0:23
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What's the difference between compiled and interpreted language?
...g machine's machine code. So how's that different from a VM (python or JVM etc.) doing the same in case of an interpreted language?
– qre0ct
Jun 23 at 10:28
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How to fix the Hibernate “object references an unsaved transient instance - save the transient insta
...tyManager. In basic you just say em.persist(object1); em.persist(object2); etc.
– kaba713
Jan 24 '18 at 15:20
I got th...
C# code to validate email address
...MX record, check for spelling errors from common domain names (gmail.cmo), etc. Then present a warning giving the user a chance to say "yes, my mail server really does allow ???????????? as an email address."
As for using exception handling for business logic, I agree that is a thing to be avoide...
LINQ Ring: Any() vs Contains() for Huge Collections
...d collection, then Contains might do a smart search (binary, hash, b-tree, etc.), while with `Any() you are basically stuck with enumerating until you find it (assuming LINQ-to-Objects).
Also note that in your example, Any() is using the == operator which will check for referential equality, while ...