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Better help text for 'sqlite-utils memory', refs #272

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Simon Willison 2021-06-18 20:20:56 -07:00
commit 59992d2fee
1 changed files with 22 additions and 1 deletions
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23
sqlite_utils/cli.py
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@ -1175,7 +1175,28 @@ def memory(
save,
load_extension,
):
"Execute SQL query against an in-memory database, optionally populated by imported data"
"""Execute SQL query against an in-memory database, optionally populated by imported data
To import data from CSV, TSV or JSON files pass them on the command-line:
\b
sqlite-utils memory one.csv two.json \\
"select * from one join two on one.two_id = two.id"
For data piped into the tool from standard input, use "-" or "stdin":
\b
cat animals.csv | sqlite-utils memory - \\
"select * from stdin where species = 'dog'"
The format of the data will be automatically detected. You can specify the format
explicitly using :json, :csv, :tsv or :nl (for newline-delimited JSON) - for example:
\b
cat animals.csv | sqlite-utils memory stdin:csv places.dat:nl \\
"select * from stdin where place_id in (select id from places)"
"""
db = sqlite_utils.Database(memory=True)
# If --dump or --save used but no paths detected, assume SQL query is a path:
if (dump or save) and not paths: