From dcda6e32b4496f11bf6e43fddc5772376ac0f9b2 Mon Sep 17 00:00:00 2001 From: Yves Senn Date: Wed, 26 Mar 2014 09:06:31 +0100 Subject: link to "Schema migration" Wikipedia page. Closes #14479. [ci skip] --- guides/source/migrations.md | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'guides/source/migrations.md') diff --git a/guides/source/migrations.md b/guides/source/migrations.md index 05443d5a5f..bfee55a95d 100644 --- a/guides/source/migrations.md +++ b/guides/source/migrations.md @@ -18,9 +18,10 @@ After reading this guide, you will know: Migration Overview ------------------ -Migrations are a convenient way to alter your database schema over time in a -consistent and easy way. They use a Ruby DSL so that you don't have to write -SQL by hand, allowing your schema and changes to be database independent. +Migrations are a convenient way to +[alter your database schema over time](http://en.wikipedia.org/wiki/Schema_migration) +in a consistent and easy way. They use a Ruby DSL so that you don't have to +write SQL by hand, allowing your schema and changes to be database independent. You can think of each migration as being a new 'version' of the database. A schema starts off with nothing in it, and each migration modifies it to add or -- cgit v1.2.3