oracle 修改字段名

 SQL> desc t;
Name Type            Nullable Default Comments
---- -------------- -------- ------- --------
ID    VARCHAR2(10)    Y                         
VAL   VARCHAR2(1000) Y                         

SQL> alter table t rename column val to vals;

Table altered

SQL> desc t;
Name Type            Nullable Default Comments
---- -------------- -------- ------- --------
ID    VARCHAR2(10)    Y                         
VALS VARCHAR2(1000) Y