Python Postgresql:如何从受日期约束的表中删除行?
我正在使用psycopg2,如何删除早于某个日期的行?例如:Python Postgresql:如何从受日期约束的表中删除行?,python,sql,postgresql,psycopg2,python-db-api,Python,Sql,Postgresql,Psycopg2,Python Db Api,我正在使用psycopg2,如何删除早于某个日期的行?例如: cursor.execute('DELETE FROM datatable WHERE date < %s', datetime.date(2012, 1, 1)) cursor.execute('DELETE FROM datatable WHERE date
cursor.execute('DELETE FROM datatable WHERE date < %s', datetime.date(2012, 1, 1))
cursor.execute('DELETE FROM datatable WHERE date<%s',datetime.date(2012,1,1))
如果我这样写,就会出现TypeError:“datetime.date”对象不支持索引。我该怎么办?谢谢 将第二个参数作为列表或元组传递:
cursor.execute('DELETE FROM datatable WHERE date < %s', [datetime.date(2012, 1, 1)])
cursor.execute('DELETE FROM datatable WHERE date<%s',[datetime.date(2012,1,1)])