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Find index of last occurrence of a sub-string using T-SQL
...ysical_name), charindex('\', reverse(physical_name)) -1))
from sys.master_files mf
shows how to extract the actual database file names from from their "physical names", no matter how deeply nested in subfolders. This does search for only one character (the backslash), but you can build on this f...
Cassandra port usage - how are the ports used?
...0 (as of Cassandra 0.8.xx).
This is configurable in your cassandra-env.sh file, but the default is 7199.
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What is “git remote add …” and “git push origin master”?
...rts (i.e. what git://) means. Remote repository URLs can be of many types (file://, https:// etc.). Git simply relies on the authentication mechanism provided by the transport to take care of permissions and stuff. This means that for file:// URLs, it will be UNIX file permissions, etc. The git:// s...
Adding :default => true to boolean in existing Rails column
... That's the more generic way to change a column
def up
change_column :profiles, :show_attribute, :boolean, default: true
end
def down
change_column :profiles, :show_attribute, :boolean, default: nil
end
OR a more specific option:
def up
change_column_default :profiles, :show_attribute, tru...
GitHub README.md center image
...e it’s been marked up with tags or formatting instructions. "
Markdown files are rendered by github.com website through the use of the Ruby Redcarpet library.
Redcarpet exposes some extensions (such as strikethrough, for instance) which are not part of standard Markdown syntax and provide addi...
How to work with Git branches and Rails migrations
...eproduce real life bugs locally, it's absolutely impossible to use a seeds file, you need the real data from production (or staging). And restoring a database can take quite a while, so no this isn't a good solution for my case.
– Joel_Blum
Jan 10 '19 at 10:31
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What's the difference between SoftReference and WeakReference in Java?
...].
Typical use case example is keeping a parsed form of a contents from a
file. You'd implement a system where you'd load a file, parse it, and keep
a SoftReference to the root object of the parsed representation. Next time
you need the file, you'll try to retrieve it through the SoftReference. If
...
Reset push notification settings for app
... This would only work if your'e using wildcard based provisioning profiles - otherwise, you would need to create a profile for the new bundle.
– Zorayr
May 18 '15 at 2:03
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How do I check in SQLite whether a table exists?
...name of the table to check.
Documentation section for reference: Database File Format. 2.6. Storage Of The SQL Database Schema
This will return a list of tables with the name specified; that is, the cursor will have a count of 0 (does not exist) or a count of 1 (does exist)
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Simple Pivot Table to Count Unique Values
...
Just an FYI: if you haven't yet saved your file as an Excel (.xlsx) file yet (eg: you opened a .csv file), the option to "Add this data to the Data Model" is disabled/greyed out. The simple solution is to save the file as an Excel file.
– PonyEar...