从10g开始,Oracle提供更高效的Data Pump(即expdp/impdp)来进行数据的导入和导出,老的exp/imp还可以用,但已经不建议使用.注意:expdp/impdp和exp/imp之间互不兼容,也就是说exp导出的文件只能用imp导入,expdp导出的文件只能用impdp导入. Data Pump的组成部分 Data Pump有以下三个部分组成: 客户端工具:expdp/impdp Data Pump API (即DBMS_DATAPUMP) Metadata API(即D
https://en.wikipedia.org/wiki/Common_Gateway_Interface In computing, Common Gateway Interface (CGI) offers a standard protocol for web servers to interface with executable programs running on a serverthat generate web pages dynamically. Such programs
Core Data存储数据的时候崩溃,崩溃信息: reason: 'This NSPersistentStoreCoordinator has no persistent stores (unknown). It cannot perform a save operation.' 创建一个全局断点,发现最后断点停在存储协调器设置数据库URL的地方. 最后发现桌面并不存在test2这个文件夹,当test2文件夹存在是,就不会崩溃. Core Data测试Demo下载
Are you looking for a method other than drop keyspace? Okay based on your clarification... I would say the best way to reset cassandra would be to delete the contents of the <data dir>/data/* <data dir>/commitlog/* <data dir>/saved_cache