尝试在重复上使用时出现语法错误

Posted 2023-03-23

【中文标题】尝试在重复上使用时出现语法错误

【英文标题】：having syntax error trying to use on duplicate

【发布时间】：2020-09-28 17:27:27

【问题描述】：

sql_insert_query = "insert into TABLE1 (building, course, description, course_type, course_type_desc, dual_credit) 
VALUES (?, ?, ?, ?, ?, ?) ON DUPLICATE KEY UPDATE building = VALUES(building), course = VALUES(course), description = VALUES(description), course_type = VALUES(course_type), course_type_desc = VALUES(course_type_desc), dual_credit = VALUES(dual_credit);"

cursor.executemany(sql_insert_query, listCourse)

pyodbc.ProgrammingError: ('42000', u"[42000] [Microsoft][SQL Server Native Client 11.0][SQL Server]关键字“ON”附近的语法不正确。 (156) (SQLExecDirectW); [42000] [Microsoft][SQL Server 本机客户端 11.0][SQL Server]无法准备语句。 (8180)")

下面这个只有效，但再次运行时会添加重复。

"insert into TABLE1 (building, course, description, course_type, course_type_desc, dual_credit) VALUES (?, ?, ?, ?, ?, ?)"  

【参考方案1】：

我绑定了 '%s' 这不起作用，所以我使用的是 '?'

【参考方案2】：

我已经用元组平铺解决了

listCourse = numpy.tile(课程, 2) listCourse = map(tuple,numpy.tile(courses, 2))