How does the bar code generated in django relate to the data in the database

problem description

how do the bar codes generated in django relate to the data in the database

the environmental background of the problems and what methods you have tried

you need to generate a bar code at work, and you can read the information on the bar code through the scanner

related codes

/ / Please paste the code text below (do not replace the code with pictures)

what result do you expect? What is the error message actually seen?

Django-rest-framework sqlserver python linux
May.22,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3578e-2bf8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3578e-2bf8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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