From 4aeca52e1ff20d1737cf60e8b0ded85fcdf6467a Mon Sep 17 00:00:00 2001 From: hadley Date: Mon, 15 Aug 2016 07:40:39 -0500 Subject: [PATCH] Clarifying suggestion Fixes #268 (manual merge) --- relational-data.Rmd | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/relational-data.Rmd b/relational-data.Rmd index 998b96a..c1ce1b6 100644 --- a/relational-data.Rmd +++ b/relational-data.Rmd @@ -16,7 +16,7 @@ To work with relational data you need verbs that work with pairs of tables. Ther * __Set operations__, which treat observations as if they were set elements. -The most common place to find relational data is in a _relational_ database management system (or RDBMS), a term that encompasses almost all modern databases. If you've used a database before, you've almost certainly used SQL. If so, you should find the concepts in this chapter familiar, although their expression in dplyr is a little different. Generally, dplyr is a little easier to use than SQL because dplyr is specialised to do data analysis: it makes common data analysis operations easier, at the expense of making it more difficult to do other things that don't commonly need for data analysis. +The most common place to find relational data is in a _relational_ database management system (or RDBMS), a term that encompasses almost all modern databases. If you've used a database before, you've almost certainly used SQL. If so, you should find the concepts in this chapter familiar, although their expression in dplyr is a little different. Generally, dplyr is a little easier to use than SQL because dplyr is specialised to do data analysis: it makes common data analysis operations easier, at the expense of making it more difficult to do other things that aren't commonly needed for data analysis. ### Prerequisites