On Friday, 1 June 2018 at 09:49:23 UTC, biocyberman wrote:
I need to convert a compressed 17GB SQL dump to CSV. A workable
solution is to create a temporary mysql database, import the
dump, query by python, and export. But i wonder if there is
something someway in D to parse the SQL file directly and query
and export the data. I imagine this will envolve both parsing
and querying because the data is stored in several tables. I am
in the process of downloading the dump now so I can’t give
excerpt of the data.
You don't need python:
https://michaelrigart.be/export-directly-mysql-csv/
SELECT field1, field2
FROM table1
INTO OUTFILE '/path/to/file.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
FIELDS ESCAPED BY '\'
LINES TERMINATED BY '\n';
Most important:
INTO OUTFILE : here you state the path where you want MySQL to
store the CSV file. Keep in mind that the path needs to be
writeable for the MySQL user
You can write a parser for SQL in D, but even if the import into
mysql would take some time, it's only compute time and not yours.
Regards mt.
