1.使用dual配合connect by level create table BigTable as select rownum as id from dual connect by level <= 100000; 但是有connect by level有上限,如果超出上限,系统会报,"connect by level"内存不足,我试过1000000万数据可以,但是再多就不行了. 2. 使用xmltable,"CONNECT BY 操作内存不足,10g开始支持XML
Mycat 后面接一个Oracle实例与一个MySQL实例,假设用户表,订单表,转账记录表,Oracle字符集为GBK的,MySQL字符集则要求UTF8的完成用户表与订单表到MySQL的迁移过程,要求导数据是通过命令行连接Mycat来完成的 oraclescott/scott103@10.0.1.103/grsselect userenv('language') from dual;SIMPLIFIED CHINESE_CHINA.AL32UTF8--oracle tablesCREATE TA