在下面的代码中遇到上述错误，有人可以指导我吗？
import psycopg2
import os
import time
import MySQLdb
import sys
from pprint import pprint
from datetime import datetime
from psycopg2 import sql
def psql_Source_fetch_and_DestInsert(msql, psql,
msql_command, psql_command):
msql.execute(msql_command)
for row in msql:
try:
psql.execute(command, row)
except psycopg2.Error as e:
print "Cannot execute the query!!", e.pgerror
sys.exit("Some problem occured with the query!!!")
def dB_Fetch():
# MySQLdb connection
try:
source_host = 'magento'
conf = get_global_config()
cnx_msql = psycopg2.connect(user="postgres",
password="postgres",
host="127.0.0.1",
port="5432",
database="clone")
except mysql.connector.Error as e:
print "MYSQL: Unable to connect!", e.msg
sys.exit(1)
# Postgresql connection
try:
cnx_psql = psycopg2.connect(user="postgres",
password="postgres",
host="127.0.0.1",
port="5432",
database="postgres")
except psycopg2.Error as e:
print('PSQL: Unable to connect!\n{0}').format(e)
sys.exit(1)
# Cursors initializations
cur_msql = cnx_msql.cursor(dictionary=True)
cur_psql = cnx_psql.cursor()
try:
print("creating table using cursor")
SQL_create_Staging_schema="""CREATE SCHEMA IF NOT
EXISTS staging AUTHORIZATION postgres;"""
SQL_create_sales_flat_quote="""CREATE TABLE IF NOT EXISTS
staging.sales_flat_quote
(
customer_id BIGINT
, entity_id BIGINT
, store_id BIGINT
, customer_email TEXT
, customer_firstname TEXT
, customer_middlename TEXT
, customer_lastname TEXT
, customer_is_guest BIGINT
, customer_group_id BIGINT
, created_at TIMESTAMP WITHOUT TIME ZONE
, updated_at TIMESTAMP WITHOUT TIME ZONE
, is_active BIGINT
, items_count BIGINT
, items_qty BIGINT
, base_currency_code TEXT
, grand_total NUMERIC(12,4)
, base_to_global_rate NUMERIC(12,4)
, base_subtotal NUMERIC(12,4)
, base_subtotal_with_discount NUMERIC(12,4)
)
;"""
SQL_create_sales_flat_quote_item="""CREATE TABLE IF NOT
EXISTS staging.sales_flat_quote_item
( store_id INTEGER
, row_total NUMERIC
, updated_at TIMESTAMP WITHOUT TIME ZONE
, qty NUMERIC
, sku CHARACTER VARYING
, free_shipping INTEGER
, quote_id INTEGER
, price NUMERIC
, no_discount INTEGER
, item_id INTEGER
, product_type CHARACTER VARYING
, base_tax_amount NUMERIC
, product_id INTEGER
, name CHARACTER VARYING
, created_at TIMESTAMP WITHOUT TIME ZONE
);"""
print("Creating Schema")
cur_psql.execute(SQL_create_Staging_schema)
print("schema succesfully created")
print("Creating staging.sales_flat_quote table")
cur_psql.execute(SQL_create_sales_flat_quote)
print("staging.sales_flat_quote table succesfully created")
print("Creating staging.sales_flat_quote_item table")
cur_psql.execute(SQL_create_sales_flat_quote_item)
print("staging.sales_flat_quote_item table succesfully
created")
cnx_psql.commit();
print("Fetching data from source server")
#select from source & insert into destination SQL statement is
created as PAIRS for looping.
commands = [
("SELECT customer_id, entity_id, store_id, customer_email
, customer_firstname, customer_middlename,
customer_lastname , customer_is_guest, customer_group_id,
created_at, updated_at, is_active, items_count, items_qty,
base_currency_code, grand_total, base_to_global_rate,
base_subtotal, base_subtotal_with_discount from
sales_flat_quote where is_active=1 AND items_count != '0' AND
updated_at > '2019-05-09 00:00:00';",
"INSERT INTO staging.sales_flat_quote (customer_id,
entity_id, store_id, customer_email , customer_firstname,
customer_middlename, customer_lastname ,
customer_is_guest, customer_group_id, created_at,
updated_at, is_active, items_count, items_qty,
base_currency_code, grand_total, base_to_global_rate,
base_subtotal, base_subtotal_with_discount) \
VALUES (%(customer_id)s, %(entity_id)s, %(store_id)s,%.
(customer_email)s,%(customer_firstname)s,%.
(customer_firstname)s,%(customer_middlename)s,%.
(customer_lastname)s,%(customer_is_guest)s, %.
(customer_group_id)s, %(created_at)s, %(updated_at)s, %.
(is_active)s, %(items_count)s, %(items_qty)s, %.
(base_currency_code)s, %(grand_total)s, %.
(base_to_global_rate)s, %(base_subtotal)s, %.
(base_subtotal_with_discount)s)"),
("SELECT
store_id，row_total，updated_at，qty，sku，免运费，quote_id，价格，无折扣，item_id，product_type，base_tax_amount，product_id，名称，sales_flat_quote_item的创建日期，“ “将ININSERT INTO暂存。 ，％（updated_at）s，％（qty）s，％（sku）s，％（free_shipping）s，％（quote_id）s，％（price）s，％（no_discount）s，％（item_id）s，％ （product_type）s，％（base_tax_amount）s，％（product_id）s，％（name）s，％（created_at）s）“）
,("SELECT
created_at，url_path，price，short_description，url_key，thumbnail_label。 ，小图片，缩略图，名称，sku，来自的type_id catalog_product_flat_1”， “将INERT插入staging.catalog_product_flat_1
（created_at，url_path，price，short_description，url_key，thumbnail_lab el，small_image，thumbnail，name，sku，type_id）\ VALUES（％（created_at）s，％（url_path）s，％（price）s，％。 （short_description）s，％（url_key）s，％（thumbnail_label）s，％。 （small_image）s，％（thumbnail）s，％（name）s，％（sku）s，％。 （type_id）s）“） ]
for msql_command, psql_command in commands:
psql_Source_fetch_and_DestInsert(cur_msql, cur_psql,
msql_command, psql_command)
except (Exception, psycopg2.Error) as error:
print ("Error while fetching data from PostgreSQL", error)
finally:
## Closing cursors
cur_msql.close()
cur_psql.close()
## Committing
cnx_psql.commit()
## Closing database connections
cnx_msql.close()
cnx_psql.close()
if __name__ == '__main__':
dB_Fetch()