mirror of https://github.com/CrimsonTome/tldr.git
29 lines
1.0 KiB
Markdown
29 lines
1.0 KiB
Markdown
# textql
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> Execute SQL against structured text like csv or tsv files.
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> More information: <https://github.com/dinedal/textql>.
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- Print the lines in the specified `.csv` file that match an SQL query to `stdout`:
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`textql -sql "{{SELECT * FROM filename}}" {{path/to/filename.csv}}`
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- Query `.tsv` file:
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`textql -dlm=tab -sql "{{SELECT * FROM filename}}" {{path/to/filename.tsv}}`
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- Query file with header row:
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`textql -dlm={{delimiter}} -header -sql "{{SELECT * FROM filename}}" {{path/to/filename.csv}}`
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- Read data from `stdin`:
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`cat {{path/to/file}} | textql -sql "{{SELECT * FROM stdin}}"`
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- Join two files on a specified common column:
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`textql -header -sql "SELECT * FROM {{path/to/file1}} JOIN {{file2}} ON {{path/to/file1}}.{{c1}} = {{file2}}.{{c1}} LIMIT {{10}}" -output-header {{path/to/file1.csv}} {{path/to/file2.csv}}`
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- Format output using an output delimiter with an output header line:
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`textql -output-dlm={{delimiter}} -output-header -sql "SELECT {{column}} AS {{alias}} FROM {{filename}}" {{path/to/filename.csv}}`
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