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if
exists
(
select
*
from
dbo.sysobjects
where
id
=
object_id
(N
'
[dbo].[customer_s]
'
)
and
OBJECTPROPERTY
(id, N
'
IsUserTable
'
)
=
1
)
drop
table
[
dbo
]
.
[
customer_s
]
GO
CREATE
TABLE
[
dbo
]
.
[
customer_s
]
(
[
customer_id
]
INT
,
[
account_num
]
[
float
]
NULL
,
[
lname
]
[
nvarchar
]
(
100
) COLLATE Chinese_PRC_CI_AS
NULL
,
[
fname
]
[
nvarchar
]
(
50
) COLLATE Chinese_PRC_CI_AS
NULL
,
CONSTRAINT
[
PK_customer_s
]
PRIMARY
KEY
CLUSTERED
(customer_id),
CONSTRAINT
[
CK_customer_s
]
CHECK
(
[
customer_id
]
<=
1000
)
)
ON
[
PRIMARY
]
GO
if
exists
(
select
*
from
dbo.sysobjects
where
id
=
object_id
(N
'
[dbo].[customer_m]
'
)
and
OBJECTPROPERTY
(id, N
'
IsUserTable
'
)
=
1
)
drop
table
[
dbo
]
.
[
customer_m
]
GO
CREATE
TABLE
[
dbo
]
.
[
customer_m
]
(
[
customer_id
]
INT
,
[
account_num
]
[
float
]
NULL
,
[
lname
]
[
nvarchar
]
(
100
) COLLATE Chinese_PRC_CI_AS
NULL
,
[
fname
]
[
nvarchar
]
(
50
) COLLATE Chinese_PRC_CI_AS
NULL
,
CONSTRAINT
[
PK_customer_m
]
PRIMARY
KEY
CLUSTERED
(customer_id),
CONSTRAINT
[
CK_customer_m
]
CHECK
(
[
customer_id
]
>
1000
)
)
ON
[
PRIMARY
]
GO
if
exists
(
select
*
from
dbo.sysobjects
where
id
=
object_id
(N
'
[dbo].[v_customer]
'
)
and
OBJECTPROPERTY
(id, N
'
IsView
'
)
=
1
)
drop
view
[
dbo
]
.
[
v_customer
]
GO
CREATE
VIEW
v_customer
AS
SELECT
*
FROM
customer_s
UNION
ALL
SELECT
*
FROM
customer_m
GO
INSERT
INTO
v_customer(customer_id,account_num,lname,fname)
SELECT
customer_id,account_num,lname,fname
FROM
customer
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原文地址:https://www.cnblogs.com/goodspeed/p/26264.html
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