Practice pushing data back to database
It is also possible to go the other way around and push local CSV files back to the database. As long as we specify the database as well as the CSV file to be loaded, csvsql does the rest of the work for us (e.g. inferring table schema), behind the scenes.
In the following exercise, complete the command to upload Spotify_MusicAttributes.csv as its own table in the SQLite database SpotifyDatabase. Then, as a sanity check, re-pull the data from the newly created table in the database.
Este exercício faz parte do curso
Data Processing in Shell
Instruções do exercício
- Upload
Spotify_MusicAttributes.csvas its own table in the SQLite databaseSpotifyDatabase. - Re-pull the data from the newly created table
Spotify_MusicAttributesin the SQLite databaseSpotifyDatabase.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
# Preview file
ls
# Upload Spotify_MusicAttributes.csv to database
csvsql --___ "sqlite:///SpotifyDatabase.db" --___ Spotify_MusicAttributes.csv
# Store SQL query as shell variable
sqlquery="SELECT * FROM Spotify_MusicAttributes"
# Apply SQL query to re-pull new table in database
sql2csv --db "sqlite:///SpotifyDatabase.db" --query "$___"