CREATE TABLE bm_print_set
(
print_type VARCHAR2(2),
print_size VARCHAR2(50)
)
/
COMMENT ON TABLE bm_print_set IS '打印机纸张类型';
COMMENT ON COLUMN bm_print_set.print_type IS '纸张类型';
COMMENT ON COLUMN bm_print_set.print_size IS '纸张名称';
create table contact
(
CONTACTID VARCHAR2(16) not null,
NAME VARCHAR2(20)
)
comment on column contact.contactid
is '客户编号';
comment on column contact.name
is '客户名称';