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backend01.py
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backend01.py
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import sqlite3
def table_create():
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS book (id INTEGER PRIMARY KEY, title TEXT, author TEXT, year NUMBER, isbn NUMBER)")
conn.commit()
conn.close()
def insert(title="",author="",year="",isbn=""):
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("INSERT into book VALUES (NULL,?,?,?,?)",(title,author,year,isbn))
conn.commit()
conn.close()
def viewAll():
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("SELECT * from book")
rows=cur.fetchall()
return rows
def delete(id=""):
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("DELETE from book WHERE id=?",(id,))
conn.commit()
conn.close()
def update(id,title,author,year,isbn):
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("Update book SET title=?, author=?, year=?,isbn=? where id=?",(title,author,year,isbn,id))
conn.commit()
conn.close()
def search(title="",author="",year="",isbn=""):
conn=sqlite3.connect("books.db")
cur=conn.cursor()
cur.execute("Select * from book WHERE (title=? OR author=? or year=? or isbn=?)",(title,author,year,isbn))
rows=cur.fetchall()
conn.close()
return rows
table_create()
insert("Amazon","Higley",1998,1929222)
delete("2")
update(3,"Amzzzz","Trump","2000","22121211")
print(viewAll())
print(search(author="Trump"))