This assignment will review basic knowledge of the SQL language and incorporate indexing to improve query performance against a large dataset.

You will need to begin by creating the database to work on. You may download the datafile and initialize the SQLIte database using make calls.db. Alernatively, you may download the datafile from the following URL and import it to a database manually:

https://data.seattle.gov/api/views/33kz-ixgy/rows.csv?accessType=DOWNLOAD

I've provided a number of queries in the file queries.sql. This can be executed using the command .read queries.sql from your SQLite instance. Your goal is to improve the performance of these queries by only modifying the database and not the queries themselves. You'll want to use explain query plan to determine what may be causing queries to run slowly and add appropriate indices.

Please create a file named solution.sql that creates the appropriate indices and that includes comments for each index you create explaining why you created it and how much it improved performance.