编辑时间 20200418
#新增系统表 SYS_PROFILES
#新增profile语法支持，详见语法定义文件
create profile p1 limit 
SESSION_PER_USER 10  CPU_PER_SESSION 10  CPU_PER_CALL 10  MAX_CONNECT_TIME 10  MAX_IDLE_TIME 10  READS_PER_SESSION 10  
				READS_PER_CALL 10  TOTAL_RESOURCE_LIMIT 10  PRIVATE_SGA 10  MAX_STORE_NUM 10  CONNECT_NODES 10  STORE_NODES 10  TEMPSPACE_QUOTA 10  
				CURSOR_QUOTA 10  FAILED_LOGIN_ATTEMPTS 10  PASSWORD_LIFE_PERIOD 10  PASSWORD_LOCK_TIME 10;
				
create profile p1 limit 
SESSION_PER_USER  default  CPU_PER_SESSION  default  CPU_PER_CALL  default  MAX_CONNECT_TIME  default  MAX_IDLE_TIME  default  READS_PER_SESSION  default  
				READS_PER_CALL  default  TOTAL_RESOURCE_LIMIT  default  PRIVATE_SGA  default  MAX_STORE_NUM  default  CONNECT_NODES  default  STORE_NODES  default  TEMPSPACE_QUOTA  default  
				CURSOR_QUOTA  default  FAILED_LOGIN_ATTEMPTS  default  PASSWORD_LIFE_PERIOD  default  PASSWORD_LOCK_TIME  default;
				
create profile p1 limit 
SESSION_PER_USER  unlimited  CPU_PER_SESSION  unlimited  CPU_PER_CALL  unlimited  MAX_CONNECT_TIME  unlimited  MAX_IDLE_TIME  unlimited  READS_PER_SESSION  unlimited  
				READS_PER_CALL  unlimited  TOTAL_RESOURCE_LIMIT  unlimited  PRIVATE_SGA  unlimited  MAX_STORE_NUM  unlimited  CONNECT_NODES  unlimited  STORE_NODES  unlimited  TEMPSPACE_QUOTA  unlimited  
				CURSOR_QUOTA  unlimited  FAILED_LOGIN_ATTEMPTS  unlimited  PASSWORD_LIFE_PERIOD  unlimited  PASSWORD_LOCK_TIME  unlimited;
#待实现功能
修改删除语法实现
profile和用户关联实现
本部分关键字用于标识符处理