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Entity Framework code first unique column
...bute on your model:
[Index(IsUnique=true)]
You can find it in this namespace:
using System.ComponentModel.DataAnnotations.Schema;
If your model field is a string, make sure it is not set to nvarchar(MAX) in SQL Server or you will see this error with Entity Framework Code First:
Column 'x' ...
How to delete from select in MySQL?
...ery within the same query. However, you can either SELECT then DELETE in separate queries, or nest another subquery and alias the inner subquery result (looks rather hacky, though):
DELETE FROM posts WHERE id IN (
SELECT * FROM (
SELECT id FROM posts GROUP BY id HAVING ( COUNT(id) > ...
Map enum in JPA with fixed values?
I'm looking for the different ways to map an enum using JPA. I especially want to set the integer value of each enum entry and to save only the integer value.
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How to convert a selection to lowercase or uppercase in Sublime Text
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From the Sublime Text docs for Windows/Linux:
Keypress Command
Ctrl + K, Ctrl + U Transform to Uppercase
Ctrl + K, Ctrl + L Transform to Lowercase
and for Mac:
Keypress Command
cmd + KU Transform to Uppercase
cmd + KL Transform to Lowercase
Also n...
Meaning of Open hashing and Closed hashing
Open Hashing (Separate Chaining):
3 Answers
3
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Git search for string in a single file's history
...tory of foo.rb for the string bar to see if it was ever defined in the past.
4 Answers
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How do you log server errors on django sites
So, when playing with the development I can just set settings.DEBUG to True and if an error occures I can see it nicely formatted, with good stack trace and request information.
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MySQL - ORDER BY values within IN()
I'm hoping to sort the items returned in the following query by the order they're entered into the IN() function .
6 Answe...
Custom attributes - Yea or nay?
Recently I have been reading more and more about people using custom attributes in their HTML tags, mainly for the purpose of embedding some extra bits of data for use in javascript code.
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Why does sudo change the PATH?
This is the PATH variable without sudo:
17 Answers
17
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