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- #import snowflake connector module
- import snowflake.connector
- from snowflake.connector.converter_null import SnowflakeNoConverterToPython
- from snowflake.connector import DictCursor
- import sys
- import os
- from cryptography.hazmat.backends import default_backend
- from cryptography.hazmat.primitives.asymmetric import rsa
- from cryptography.hazmat.primitives.asymmetric import dsa
- from cryptography.hazmat.primitives import serialization
- # 確定輸入的參數是否給定正確
- # Sample: python Improving_Performance_Bypasstype.py <account> <user> <role>
- if len(sys.argv) < 4 :
- print("ERROR: Please pass the following command-line parameters in order:",end='\n')
- print("account,user,role.")
- sys.exit(-1)
- else:
- ACCOUNT = sys.argv[1]
- USER = sys.argv[2]
- ROLE = sys.argv[3]
- with open("/Users/abehsu/Documents/Snowflake/Snowpipe_poc/rsa_key.p8", "rb") as key:
- p_key = serialization.load_pem_private_key(
- key.read(),
- password = os.environ['PRIVATE_KEY_PASSPHRASE'].encode(),
- backend=default_backend()
- )
- pkb = p_key.private_bytes(
- encoding=serialization.Encoding.DER,
- format=serialization.PrivateFormat.PKCS8,
- encryption_algorithm=serialization.NoEncryption()
- )
- con = snowflake.connector.connect(
- account=ACCOUNT,
- user=USER,
- role=ROLE,
- private_key=pkb,
- converter_class=SnowflakeNoConverterToPython
- )
- con.cursor().execute("USE WAREHOUSE SF_TUTS_WH")
- con.cursor().execute("USE SCHEMA DEMO_DB.PUBLIC")
- for rec in con.cursor(DictCursor).execute("SELECT * FROM LIBRARY LIMIT 100"):
- print(rec["BIBNUM"],rec["TITLE"],rec["AUTHOR"],rec["ISBN"],rec["PUBLICATIONYEAR"],rec["PUBLISHER"],rec["SUBJECTS"],rec["ITEMTYPE"],rec["ITEMCOLLECTION"],rec["FLOATINGITEM"],rec["ITEMLOCATION"],rec["REPORTDATE"],rec["ITEMCOUNT"])
- print(type(rec["BIBNUM"]))
- print(type(rec["REPORTDATE"]))
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