d846674104的专栏

 CREATE TABLE t_nation (     id int (2) NOT NULL PRIMARY KEY     ,nation varchar (20) ); INSERT INTO t_nation VALUES('1','汉族');   INSERT INTO t_nation VALUES('2','蒙古族');   INSERT INTO t_nat

 CREATE TABLESPACE EXLIDB_DATA DATAFILE  F:\app\Administrator\oracle_tablespace\EXLIDB\EXLIDB_DATA.dbf' SIZE 10M AUTOEXTEND ON NEXT  512k  MAXSIZE UNLIMITED; CREATE TABLESPACE EXLIDB_IMAGE  DA