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Change from SQLite to PostgreSQL in a fresh Rails project
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@mmichael it really depends on how you have your postgres set up. Using postgres.app, brew, or native if you are on MacOS X Lion+ have different restrictions on their default setup. So if username and password do not apply, you can leave th...
Search text in stored procedure in SQL Server
I want to search a text from all my database stored procedures. I use the below SQL:
22 Answers
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Insert new column into table in sqlite?
... ADD COLUMN COLNew {type};
Second, and more complicatedly, but would actually put the column where you want it, would be to rename the table:
ALTER TABLE {tableName} RENAME TO TempOldTable;
Then create the new table with the missing column:
CREATE TABLE {tableName} (name TEXT, COLNew {type} DE...
How do I vertically align something inside a span tag?
How do I get the "x" to be vertically-aligned in the middle of the span?
9 Answers
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I change the capitalization of a directory and Git doesn't seem to pick up on it
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You're probably using case insensitive (but case preserving) HFS+. I usually work round this like so:
$ git mv somename tmpname
$ git mv tmpname SomeName
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How do I fix certificate errors when running wget on an HTTPS URL in Cygwin?
...hacky solutions in here, I feel I have to describe a proper solution after all.
First, you need to install the cygwin package ca-certificates via Cygwin's setup.exe to get the certificates.
Do NOT use curl or similar hacks to download certificates (as a neighboring answer advices) because that's ...
Package doesn't exist error in intelliJ
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I tried to "Maven > Reimport" but the only thing that actually fixed it was to close the project, delete the .idea directory, and reopen the project.
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Can I squash commits in Mercurial?
I have a pair of commits that should really be just one. If I was using git, I would use:
8 Answers
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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
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Be careful, this could really screw you if someone ends up passing you an instance of ActiveSupport::HashWithIndifferentAccess. Which responds like a hash, but is not in fact a Hash. :(
– unflores
Mar 6 '14 at...
Which is more efficient: Multiple MySQL tables or one large table?
I store various user details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tabl...