Prototype cursor.fetchall() Parameter None Return Value Tuple list, which contains all results of the result set. An empty list is returned when no rows are available. Examples For details, seeExample: Common Operations. Parent topic:Psycopg ...
当完成创建外部服务器后,在GaussDB(DWS)数据库中创建一个OBS外表,用来访问存储在OBS上的数据。OBS外表是只读的,只能用于查询操作,可直接使用SELECT查询其数据。创建外表创建外表的语法格式如下,详细的描述请参见CREATE FOREIGN TABLE (SQL on Hadoop or OBS)。
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天眼查专利网为您提供Forward-facing rowing dev专利信息,该专利是DUNSTAN, HARRY I的注册专利,专利查询就上天眼查。
(stonehenge-dev@incubator.apache.org) Dear Stonehenge Developers, This email was sent by an automated system on behalf of the Apache Incubator PMC. It is an initial reminder to give you plenty of time to prepare your quarterly board report. ...
此方法获取查询结果的所有(剩余)行,并将它们作为元组列表返回。无。元组列表,为结果集的所有结果。空行时则返回空列表。请参见示例:常用操作。
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