1.添加表字段--咨询表添加内容简介字段
ALTER TABLE s_table ADD intro VARCHAR2(1024);
COMMENT ON COLUMN s_table.remarks IS
'描述';
2.修改为clob类型字段
delete from s_table ;
commit;
alter table s_table drop column remarks ;
alter table s_table add remarks CLOB;
1.添加表字段--咨询表添加内容简介字段
ALTER TABLE s_table ADD intro VARCHAR2(1024);
COMMENT ON COLUMN s_table.remarks IS
'描述';
2.修改为clob类型字段
delete from s_table ;
commit;
alter table s_table drop column remarks ;
alter table s_table add remarks CLOB;