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how to connect flask app to database?
Flask supports database powered application (RDBS). Such system requires creating a schema, which requires piping the shema.sql file into a sqlite3 command. So you need to install sqlite3 command in order to create or initiate the database in Flask.
Flask allows to request database in three ways
They are called after the response been constructed. They are not allowed to modify the request, and their values are ignored.
import sqlite3 con = sqlite3.connect("employee.db") print("Database opened successfully") con.execute("create table Employees (id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT NOT NULL, email TEXT UNIQUE NOT NULL, address TEXT NOT NULL)") print("Table created successfully") con.close()
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