問(wèn)題描述

python使用sqlite3 長(zhǎng)語(yǔ)句插入出錯(cuò)Python2.7下面是源碼，還有測(cè)試結(jié)果，原原本本在終端操作是沒(méi)問(wèn)題的，但是在python中跑就出bug了

import xlrdimport multiprocessingfrom sql import sql_methodmysqlite=sql_method()def table_compare():query=’’’select * FROM compare_sales_order WHERE ( compare_sales_order.order_num, compare_sales_order.product_name, compare_sales_order.col_color) not IN(SELECT order_num, product_name, col_color FROM sales_order) ’’’# print querydata=mysqlite.conn.execute(query)for i in data: print itable_compare()

Ran 1 test in 0.000s

FAILED (errors=1)

ErrorTraceback (most recent call last): File 'C:Python27libunittestcase.py', line 329, in run testMethod() File 'C:Python27libunittestloader.py', line 32, in testFailure raise exceptionImportError: Failed to import test module: testTraceback (most recent call last): File 'C:Python27libunittestloader.py', line 254, in _find_tests module = self._get_module_from_name(name) File 'C:Python27libunittestloader.py', line 232, in _get_module_from_name __import__(name) File 'E:pythonexcel_pythontest.py', line 14, in <module> table_compare() File 'E:pythonexcel_pythontest.py', line 11, in table_compare data=mysqlite.conn.execute(query)OperationalError: near ',': syntax error

原原本本的輸入到終端沒(méi)有任何問(wèn)題

問(wèn)題解答

你的SQL寫(xiě)得有問(wèn)題

sql = '''select *FROM compare_sales_order aWHERE not exists (SELECT 1FROM sales_order bwhere a.order_num=b.order_num and a.product_name=b.product_name and a.col_color=b.col_color )'''