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how to drop all tables in sqlite3 using python?

i made a project which collects data from user and store it on different tables, the application has a delete function which the first option is to delete a specific table which is i already did and the second one is to delete all existing tables.
How can i drop all tables inside my database?
so this is my variables.
conn = sqlite3.connect('main.db')
cursor = conn.execute("DROP TABLE")
cursor.close()

How can i drop all tables inside my database?
According to sqlitetutorial.net
SQLite allows you to drop only one table at a time. To remove multiple
tables, you need to issue multiple DROP TABLE statements.

You can do it by querying all table names (https://www.sqlite.org/faq.html#q7)
Then you can use the result to delete the tables one by one
Here is the code, the function delete_all_tables does that
TABLE_PARAMETER = "{TABLE_PARAMETER}"
DROP_TABLE_SQL = f"DROP TABLE {TABLE_PARAMETER};"
GET_TABLES_SQL = "SELECT name FROM sqlite_schema WHERE type='table';"
def delete_all_tables(con):
tables = get_tables(con)
delete_tables(con, tables)
def get_tables(con):
cur = con.cursor()
cur.execute(GET_TABLES_SQL)
tables = cur.fetchall()
cur.close()
return tables
def delete_tables(con, tables):
cur = con.cursor()
for table, in tables:
sql = DROP_TABLE_SQL.replace(TABLE_PARAMETER, table)
cur.execute(sql)
cur.close()

SQLite3 code to issue multiple DROP TABLE statements based on TEMP_% name wildcard:
.output droptables.sql
SELECT "DROP TABLE """|| sqlite_master.name ||""";" FROM sqlite_master
WHERE type = "table" AND sqlite_master.name LIKE 'TEMP_%';
.read droptables.sql
Example result in .sql output file:
DROP TABLE "TEMP_table1";
DROP TABLE "TEMP_table2";
DROP TABLE "TEMP_table3";
...
Python3 to paste SQL into:
conn = sqlite3.connect(f"main.db")
conn.row_factory = sqlite3.Row
dbc = conn.cursor()
dbc.execute(
f"DROP TABLE 'TEMP_table1';"
)
conn.commit()

'create table if not exists' query still giving warning if table exists

This is my python code:
cursor = conn.cursor ()
cursor.execute("CREATE DATABASE IF NOT EXISTS my_db")
cursor.execute("USE my_db")
table = """CREATE TABLE IF NOT EXISTS `table1` (
`id` INT NOT NULL,
`rank` INT NULL,
PRIMARY KEY (`id`)
)"""
cursor.execute(table)
It ran perfectly the first time when the db and table didn't exist. I ran it a second time to check if the IF NOT EXIST clause worked correctly. But it didn't! I got the following warnings:
script.py:67: Warning: Can't create database 'my_db'; database exists
cursor.execute("CREATE DATABASE IF NOT EXISTS my_db")
script.py:79: Warning: Table 'table1' already exists
cursor.execute(table)
Did I format my query incorrectly somehow? It matches everything I'm finding online as far as I can tell.

insert from CSV file to PostgreSQL table with integer values type

I want to insert data from a CSV file into a PostgreSQL table. The table
structure is given below. But I am unable to give input of INTEGER type values.
It is showing error like-
DataError: invalid input syntax for integer: "vendor_phone"
LINE 1: ...vendor_phone,vendor_address)VALUES ('vendor_name','vendor_ph...
It is working fine if I use VARCHAR type. But i need to use integer values.
CREATE TABLE vendors (
vendor_id SERIAL PRIMARY KEY,
vendor_name VARCHAR(100) NOT NULL,
vendor_phone INTEGER,
vendor_address VARCHAR(255) NOT NULL
)
import psycopg2
import csv
database = psycopg2.connect (database = "supplier", user="postgres", password="1234", host="localhost", port="5432")
cursor = database.cursor()
vendor_data = csv.reader(open('vendors.csv'),delimiter=',')
for row in vendor_data:
cursor.execute("INSERT INTO vendors (vendor_name,vendor_phone,vendor_address)"\
"VALUES (%s,%s,%s)",
row)
print("CSV data imported")
cursor.close()
database.commit()
database.close()

instead of cursor, you can use below statement to load data directly from CSV to table which skips Header of the CSV file
COPY vendors (vendor_name,vendor_phone,vendor_address) FROM 'vendors.csv' CSV HEADER;

Not able to insert into mysql database

I have just started using MySQLdb in python. I am able to create table but when I try to insert, no rows are inserted into the table and its shows that table is still empty.
import MySQLdb
db = MySQLdb.connect("localhost","root","shivam","test")
cursor = db.cursor()
s = "DROP TABLE IF EXISTS batting"
cursor.execute(s)
s = """create table batting (
name varchar(50) primary key,
matches integer(5),
innings integer(5),
runs integer(5),
highest integer(3),
strikerate integer(3),
hundreds integer(3),
fifties integer(3)
)"""
cursor.execute(s)
s = """insert into batting(name) values(
"shivam")"""
cursor.execute(s)
db.close()
Where I could be going wrong?

You forgot to commit your connection. Simply add:
cursor.execute(s)
db.commit()
Have a look at this. It explains why you need to commit

Python write to MySQL - no error but no writing

I am trying to write into my localhost MySQL database.
I have created a database named "test", a table called "price_update" and a row called "model"
When I run the script below I get no errors, however, I also get nothing written to my database.
I am not sure where to start looking for the problem. the row is varchar(10) and collation utf9_general_ci.
import MySQLdb
conn = MySQLdb.connect(host="127.0.0.1",user="someUser",passwd="somePassword",db="test")
query = "INSERT INTO price_update (model) values ('12345')"
x = conn.cursor()
x.execute(query)
row = x.fetchall()

You have to commit the changes:
conn.commit()
Also, I'd make your query safer:
query = "INSERT INTO price_update (model) values (%s)"
...
x.execute(query, ('12345',))