Ładowanie danych z bazy danych Oracle do Pandy DataFrame
import pandas as pd
import cx_Oracle
import sqlalchemy
from sqlalchemy.exc import SQLAlchemyError
try:
engine = sqlalchemy.create_engine("oracle+cx_oracle://usr:pswd@localhost/?service_name=orclpdb1", arraysize=1000)
orders_sql = """SELECT * FROM orders""";
df_orders = pd.read_sql(orders_sql, engine)
details_sql = """SELECT * FROM details""";
df_details = pd.read_sql(details_sql, engine)
print(df_orders)
print(df_details)
except SQLAlchemyError as e:
print(e)
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