mysql convert to sqlite
https://www.rebasedata.com/convert-mysql-to-sqlite-online
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sql.js load sqlite file from server
https://stackoverflow.com/questions/28066570/read-sqlite-database-from-the-disk-using-sql-js
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https://stackoverflow.com/questions/3890518/convert-mysql-to-sqlite
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may not work, not try yet
https://gist.github.com/esperlu/943776
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convert tools
https://www2.sqlite.org/cvstrac/wiki?p=ConverterTools
