select t.table_name 表名,
t.column_name as field name,
t.data_type as field type,
t.data_length as field length,
t.nullable as is empty,
t.data_default as default value
from USER_TAB_COLS t where TABLE_NAME ='table_name';
select t.table_name 表名,
t.column_name as field name,
t.data_type as field type,
t.data_length as field length,
t.nullable as is empty,
t.data_default as default value
from USER_TAB_COLS t where TABLE_NAME ='table_name';