class Database: def __init__(self, db_name): self.db = sqlite3.connect(db_name) self.cursor = self.db.cursor() def create_table(self, table_schema): self.cursor.execute(table_schema) self.db.commit() def insert_data(self, table_name, data): for i in range(len(data)): keys = ", ".join(data.columns) values = ", ".join([f"'{value}'" if pd.isna(value) else str(value) for value in data.iloc[i]]) self.cursor.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values})") self.db.commit() def search_data(self, table_name, year): self.cursor.execute(f"SELECT * FROM {table_name} WHERE year={year}") result = self.cursor.fetchone() if result is not None: return result else: return None def delete_data(self, table_name, year): self.cursor.execute(f"DELETE FROM {table_name} WHERE year={year}") self.db.commit() return self.cursor.rowcount > 0 Please rewrite (or convert) the code above with format: def QueryBuilder( Data_Base, Query_Type, Query_Tuple): ''' ''' Build Query_String ''' ''' return Query_String
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
class Database:
def __init__(self, db_name):
self.db = sqlite3.connect(db_name)
self.cursor = self.db.cursor()
def create_table(self, table_schema):
self.cursor.execute(table_schema)
self.db.commit()
def insert_data(self, table_name, data):
for i in range(len(data)):
keys = ", ".join(data.columns)
values = ", ".join([f"'{value}'" if pd.isna(value) else str(value) for value in data.iloc[i]])
self.cursor.execute(f"INSERT INTO {table_name} ({keys}) VALUES ({values})")
self.db.commit()
def search_data(self, table_name, year):
self.cursor.execute(f"SELECT * FROM {table_name} WHERE year={year}")
result = self.cursor.fetchone()
if result is not None:
return result
else:
return None
def delete_data(self, table_name, year):
self.cursor.execute(f"DELETE FROM {table_name} WHERE year={year}")
self.db.commit()
return self.cursor.rowcount > 0
Please rewrite (or convert) the code above with format:
def QueryBuilder( Data_Base, Query_Type, Query_Tuple):
'''
''' Build Query_String
'''
''' return Query_String
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