从python列表中删除带有信息的MYSQL中的多行 [英] Delete multiple rows in MYSQL with info from python list

问题描述

如果列表LL:

LL = ['foo', bar', 'noo', 'boo',]

在MySQL表中，在具有其他ID的列ID中进行测试.

is in a MySQL table, test in column ID with other ID's.

我可以使用以下命令删除LL中ID为的所有行:

I could use the following to delete all rows with ID's in LL:

 csr.execute("""DELETE FROM test.test WHERE ID = "Foo"; """)
  csr.execute("""DELETE FROM test.test WHERE ID = "bar"; """)  
  csr.execute("""DELETE FROM test.test WHERE ID = "noo"; """)
  csr.execute("""DELETE FROM test.test WHERE ID = "boo"; """)  

我该如何编程?

推荐答案

您可以通过一个查询来做到这一点:

You can do it with a single query:

id_list = ['abc', 'def', 'ghi']
query_string = "delete from test where id in (%s)" % ','.join(['?'] * len(id_list))
cursor.execute(query_string, id_list)

由于cursor.execute在进行替换时会转义字符串，因此该示例可以安全地防止SQL注入.

Since cursor.execute escapes strings when doing substitutions, this example is safe against SQL injections.

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