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Initial_Pre_Class_Sql_Alchemy.py
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37 lines (29 loc) · 1009 Bytes
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import pandas as pd
import sqlalchemy
from sqlalchemy.engine import URL
# connection parameters
driver='{SQL Server}'
server='localhost\SQLEXPRESS'
database='master'
trusted_connection='yes'
# pyodbc connection string
conn_str = f'DRIVER={driver};SERVER={server};DATABASE={database};'
conn_str += f'TRUSTED_CONNECTION={trusted_connection}'
# create sqlalchemy engine connection URL
connection_url = URL.create(
"mssql+pyodbc", query={"odbc_connect": conn_str})
engine = sqlalchemy.create_engine(connection_url)
d = {'value_1': [1, 2], 'value_2': [3, 4]}
df = pd.DataFrame(data=d)
try:
cs = """CREATE TABLE table_one
(ident int IDENTITY(1,1) PRIMARY KEY,
value_1 int NOT NULL,
value_2 int NOT NULL)"""
with engine.connect() as conn:
conn.execute(sqlalchemy.text(cs))
except sqlalchemy.exc.ProgrammingError:
pass
df.to_sql('table_one', engine, if_exists="append", index=False)
qdf = pd.read_sql_query("SELECT * FROM table_one", engine)
print(qdf)