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Best practices for in-app database migration for Sqlite
.... What are the gotchas, naming conventions and things to watch out for to do a successful migration each time?
8 Answers
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SQL Server 2005 How Create a Unique Constraint?
How do I create a unique constraint on an existing table in SQL Server 2005?
10 Answers
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Creating a segue programmatically
...yboard. It's even there in the name of the class: UIStoryboardSegue. You don't create segues programmatically - it is the storyboard runtime that creates them for you. You can normally call performSegueWithIdentifier: in your view controller's code, but this relies on having a segue already set u...
How do I rename a column in a SQLite database table?
... the renamed table in triggers and views.
You can find the new syntax documented under ALTER TABLE
The RENAME COLUMN TO syntax changes the column-name of table table-name into new-column-name. The column name is changed both within the table definition itself and also within all indexes, tr...
Why does GitHub recommend HTTPS over SSH?
...the SSH repo URL instead, SSH keys are used for
authentication. While we do not recommend it, if you wish to use this
method, check out this guide for help generating and using an SSH key.
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SQLite UPSERT / UPDATE OR INSERT
...ayers (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
Note: For those having to use a version of SQLite earlier than 3.24.0, please reference this answer below (posted by me, @MarqueIV).
However if you do have the option to upgrade, you ...
How do I escape a percentage sign in T-SQL?
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also note you do not have to escape a percent symbol in other constructs such as a user function, concatenation, etc.
– Bron Davies
Nov 30 '12 at 18:49
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Using C# regular expressions to remove HTML tags
How do I use C# regular expression to replace/remove all HTML tags, including the angle brackets?
Can someone please help me with the code?
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Renew Provisioning Profile
...he left list)
Click on "Add device to provisioning portal"
Wait until it's done !
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Bash foreach loop
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Something like this would do:
xargs cat <filenames.txt
The xargs program reads its standard input, and for each line of input runs the cat program with the input lines as argument(s).
If you really want to do this in a loop, you can:
for fn in...