How to query the data in the existing database by flask_sqlalchemy

want to query the data in the existing data table through flask_sqlalchemy, and find that all the previously written items are created through flask_sqlalchemy and then read and write data.
do you have a boss to give me an idea?

Apr.11,2021

my project will be helpful to you-- https://github.com/eastossifr.

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-64f5-1becb32-39ed7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1becb32-39ed7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?