logistics updates

Author: cmaimone

.gitignore

@@ -2,4 +2,10 @@ python/.ipynb_checkpoints/*
 .Rproj.user
 
 *.Rhistory
-*.Rproj
+*.Rproj
+
+.idea/
+
+handout.*
+
+PostgreSQL-Cheat-Sheet.pdf

datagrip.md

@@ -12,10 +12,14 @@ By default, you'll have a Data Source with a name like postgres@localhost or som
 * User: your username
 * Password: your password (for the database)
 
-Driver should say PostgreSQL.  If there is a link to use the default driver or download a driver, do that.  
+Driver should say PostgreSQL.  If there is a link to use the default driver or download/update a driver, do that (should show at the bottom of the window).  
 
 Click the Test Connection button to make sure the information is working.  
 
+Then click on the Schemas tab.  Find the option that has says (Current database) next to it.  Expand it, and select the public schema.  
+
+Then click on the Options tab.  Check the box next to "Introspect using JDBC metadata."
+
 Click OK in the bottom right.  
 
 When you get back to the main DataGrip window, you should see the database connection you just set up on the left.  If you expand that entry (multiple times), you'll see the name of the database, then the option to see a list of tables.  Expanding individual tables gives you information about the columns.  

readme.md

@@ -36,6 +36,16 @@ This repository also includes materials for connecting to a database using Pytho
 
 [DataGrip Tutorial](https://www.youtube.com/watch?v=Xb9K8IAdZNg): video on how to use the DataGrip program; it even uses the same database we use in this workshop.
 
+### Reference
+
+[PostgreSQL cheat sheet](http://www.postgresqltutorial.com/wp-content/uploads/2018/03/PostgreSQL-Cheat-Sheet.pdf): a list of basic commands and patterns for statements
+
+[PostgreSQL Documentation](https://www.postgresql.org/docs/current/static/index.html): official documentation 
+
+[dvdrental Diagram](http://www.postgresqltutorial.com/wp-content/uploads/2018/03/printable-postgresql-sample-database-diagram.pdf): entity-relationship diagram for the database used in the workshop
+
+[psql commands cheat sheet](http://www.postgresonline.com/downloads/special_feature/postgresql83_psql_cheatsheet.pdf): describe commands, other slash commands
+
 ### Additional Exercises/Tutorials
 
 _These resources use PostgreSQL or SQL generally._