From 8fe18b7dd2720f1ad4ae4e40ba7996c015f2185b Mon Sep 17 00:00:00 2001
From: "Peter J. Keleher" <keleher@cs.umd.edu>
Date: Sun, 27 Aug 2023 08:38:55 -0400
Subject: [PATCH] auto
---
assign1.md~ => assign2.md | 48 +++++++++++++++++++--------------------
1 file changed, 24 insertions(+), 24 deletions(-)
rename assign1.md~ => assign2.md (60%)
diff --git a/assign1.md~ b/assign2.md
similarity index 60%
rename from assign1.md~
rename to assign2.md
index 47af13f..34d08b6 100644
--- a/assign1.md~
+++ b/assign2.md
@@ -1,26 +1,25 @@
-## CMSC424 Fall 2022 Assignment 1: SQL
-### Due Sep 11, 11:59pm.
+## CMSC424 Fall 2023 Assignment 2: More SQL (v1.0)
+
+
+### Due Sep 15, midnight.
*The assignment is to be done by yourself.*
-Download Assignment 1 <a href="https://sedna.cs.umd.edu/424/assign/assignment1Dist.tgz">here</a>.
+Download Assignment 2 files <a href="https://sedna.cs.umd.edu/424/assign/assignment2Dist.tgz?2">here</a>.
-The following assumes you have gone through PostgreSQL instructions and have ran some queries on the `university` database,
-and have downloaded the above. The resulting files are:
+The following assumes you have gone through PostgreSQL instructions
+and have ran some queries on the `university` database, and have
+downloaded the above distribution. The included files are:
1. populate.sql: The SQL script for creating the data.
-1. queries.py: The file where to enter your answer
-1. SQLTesting.py: File to be used for running the queries (in `queries.py`) against the database, and generate the file to be submitted.
+1. queries.py: The file where to enter your answer and to upload to Gradescope.
+1. SQLTesting.py: File to be used for running the queries (in `queries.py`) against the database.
1. Vagrantfile: A Vagrantfile that creates the `elections` database and populates it using `populate.sql` file.
### Getting started
-Start the VM with `vagrant up` in the `assignment1Dist/` directory. The database should already be set up, but if not:
+Start the VM with `vagrant up` in the `assignment2` directory. The database should already be set up, but if not:
- Create a new database called `elections` and switch to it (see the PostgreSQL setup instructions).
- Run `\i populate.sql` to create and populate the tables.
-Note that as usual, you do not *have* to use Vagrant. However, it might make things easier for you.
-
-**NOTE:** You *can* use the VM you built in assignment0, but this Vagrantfile is slightly different. For example, some of the configured port forwarding is different, and several lines set up a new user and load in data for this assignment. You *can* just execute those commands in your current VM.
-
### Schema
The dataset contains results of `senate` and `presidential` elections for a subset of the years. For the `senate`, it contains only the statewide results from 1976 to 2018, whereas for the `presidential` elections, it contains county-level data going back to 2000.
@@ -40,8 +39,8 @@ query and makes it easier to debug.
You don't have to use the "hints" if you don't want to; there might
be simpler ways to solve the questions.
-### Testing and submitting using SQLTesting.py
-Your answers (i.e., SQL queries) should be added to the `queries.py` file. A simple query is provided for the first answer to show you how it works.
+### Testing with `SQLTesting.py`
+Your answers (i.e., SQL queries) should be added to the `queries.py` file. Queries should be as in Assignment 1.
You are also provided with a Python file `SQLTesting.py` for testing your answers.
- We recommend that you use `psql` to design your queries, and then paste the queries to the `queries.py` file, and confirm it works.
@@ -56,16 +55,17 @@ You are also provided with a Python file `SQLTesting.py` for testing your answer
- **Note**: We will essentially run a modified version of `SQLTesting.py` that compares the returned answers against correct answers. So it imperative that `python3 SQLTesting.py` runs without errors.
-### Notes/Errata
-- Question #0 - Your solution should include `candidatename, partyname, candidatevotes` as the output columns.
-- Question #4 - Your solution should assume the current year is **2020, not 2022**.
-- Question #9 - Your solution should order by `countyname, statename ascending` .
-
-### Native Mac Instructions
-You should be able to install postgresql w/ homebrew, as shown in Assignment 1. For this assignment you will need to submit queries from a python script (`SQLTesting.py`), which relies on `psycopg2`. Install via `sudo pip3 install psycopg2`. You will need to change the user `vagrant` to your username in `SQLTesting.py`.
-
### Submission Instructions
-Submit the `queries.py` file on Gradescope under <a href="https://www.gradescope.com/courses/424744/assignments/2209918">Assignment 1</a>.
+Submit the `queries.py` file on Gradescope under <a href="https://www.gradescope.com/courses/424744/assignments/2184160">Assignment 2</a>.
### Assignment Questions
-See `queries.py` file.
+See `queries.py` file and the [updates/errata](#updateserrata) above.
+
+
+
+## Notes
+- You can complete this assignment on the same VM as Assignment 1. Just copy over the
+new `queries.py` and `SQLTesting.py` from the `assignment2` directory
+- Execute `pip3 install ipython-sql` in order to use SQL from within Jupyter
+notebooks.
+
--
GitLab