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Adding 'serial' to existing column in Postgres
...int, b text);
CREATE TABLE bar (a serial, b text);
INSERT INTO foo (a, b) SELECT i, 'foo ' || i::text FROM generate_series(1, 5) i;
INSERT INTO bar (b) SELECT 'bar ' || i::text FROM generate_series(1, 5) i;
-- blocks of commands to turn foo into bar
CREATE SEQUENCE foo_a_seq;
ALTER TABLE foo ALTER...
How to check the version before installing a package using apt-get?
...stall -s redis-server
NOTE: This is only a simulation!
apt-get needs root privileges for real execution.
Keep also in mind that locking is deactivated,
so don't depend on the relevance to the real current situation!
Reading package lists... Done
Building dependency tree
Read...
%Like% Query in spring JpaRepository
...hars as well as a space char following like in your query, as in
@Query("Select c from Registration c where c.place like %:place%").
Cf. http://docs.spring.io/spring-data/jpa/docs/current/reference/html.
You may want to get rid of the @Queryannotation alltogether, as it seems to resemble the st...
TFS: Updating branch with changes from main
...
From Visual Studio, open Source Control Explorer:
View | Team Explorer
Select your Team Project from Team Explorer, expand it, and double click Source Control
In the left-hand pane of Source Control Explorer, select your Team Project.
In the right-hand pane, find your mainline branch, right-clic...
Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
...naccessible place). You get the backtrace for free:)
>> raise Rails.root
RuntimeError: /home/marcin/work/github/project1
from (irb):17
>>
I also really encourage you to try ruby-debug:
http://railscasts.com/episodes/54-debugging-with-ruby-debug
http://www.sitepoint.com/article/...
Python Nose Import Error
...
I have a situation where tests work if init.py in root directory - however, I need that file to be there, and import models.<model_name> still is not found. Test is inside a tests/ directory, and the model I'm trying to test is inside models/ directory... any help woul...
Free space in a CMD shell
...
Also, except for the root dir, dir ..* (or dir c:\thing\..*) will show a very short listing, whether or not there are zero or many files in the directory.
– azhrei
Jan 17 '17 at 2:17
...
Find in Files: Search all code in Team Foundation Server
...up an indexing service/windows
indexed search on the Search server
for the root folder
Expose a web service to return
search results
Now with all the above setup, you have a few options for the client:
Setup a web page to call the search service and format the results to show on the webpage - yo...
How to properly create an SVN tag from trunk?
...est to do copies ("snapshots") of entire projects, i.e. all files from the root check-out location. That way the snapshot can stand on its own, as a true representation of the entire project's state at a particular point in time.
This part of "the book" shows how the command is typically used.
...
Entity Framework and SQL Server View
...mn as a primary key, use NULLIF.
An easy way to apply this is to wrap the select statement of your view in another select.
Example:
SELECT
ISNULL(MyPrimaryID,-999) MyPrimaryID,
NULLIF(AnotherProperty,'') AnotherProperty
FROM ( ... ) AS temp
...