您可以使用 information_schema (Aaron ... 我知道,INFORMATION_SCHEMA ;) 创建自己的“创建表”语句。
我为此编写了一些代码,但它不使用 INFORMATION_SCHEMA。我知道,如果使用可能计划删除的旧系统表。它还添加了一些附加信息(您可以将其删除,因为您不需要它)。只需将表列表放在@INCLUSIONLIST 中,然后在表所在的数据库中运行它。
SET @INCLUSIONLIST = '|table1|table2|';
SELECT (CASE WHEN rownum = 1 THEN 'CREATE TABLE ['+a.t_name+'] ('
WHEN c.column_id IS NOT NULL
THEN ' ['+c.c_name+'] ' +
(CASE WHEN CHARINDEX('CHAR', datatype) > 0 THEN datatype+'('+(case when length < 0 then 'max' else cast(length as varchar) end)+')'
WHEN CHARINDEX('BINARY', datatype) > 0 THEN datatype+'('+cast(length as varchar)+')'
WHEN datatype = 'float' AND precision <> 24 THEN datatype+'('+cast(precision as varchar)+')'
WHEN datatype IN ('numeric', 'decimal') AND scale = 0 THEN datatype+'('+cast(precision as varchar)+')'
WHEN datatype IN ('numeric', 'decimal') AND scale > 0 THEN datatype+'('+cast(precision as varchar)+','+cast(scale as varchar)+')'
ELSE datatype END)+' '+
(CASE WHEN c.identity_seed IS NOT NULL
THEN 'IDENTITY(' + CAST(identity_seed AS VARCHAR) + ',' + CAST(identity_increment AS VARCHAR) + ') '
ELSE '' END) +
(CASE WHEN c.is_nullable = 0 THEN 'NOT NULL ' ELSE '' END) +
(CASE WHEN c.default_definition IS NOT NULL
THEN 'DEFAULT '+default_definition ELSE '' END) +
(CASE WHEN max_column_id = column_id AND pk.pk_name IS NULL THEN '' ELSE ',' END)
WHEN rownum = max_column_id + 2 and pk.pk_name IS NOT NULL
THEN ' PRIMARY KEY ('+pk.pk_columns+')'
WHEN rownum = max_column_id + 3 THEN ') /* CREATE TABLE '+a.t_name+' */'
WHEN rownum = max_column_id + 4 THEN 'GO'
WHEN rownum = max_column_id + 5 THEN ''
END)
FROM (SELECT t.t_name, rownum, max_column_id
FROM (SELECT t.name as t_name, MAX(c.column_id) as max_column_id
FROM sys.columns c join
(SELECT * FROM sys.tables WHERE CHARINDEX('|'+name+'|', @INCLUSIONLIST) > 0 ) t
ON c.object_id = t.object_id
GROUP BY t.name) t join
(SELECT ROW_NUMBER() OVER (ORDER BY object_id) as rownum FROM sys.columns c) ctr
ON ctr.rownum <= t.max_column_id + 5
) a LEFT OUTER JOIN
(SELECT t.name as t_name, c.column_id, c.name AS c_name, u.name as datatype,
ISNULL(baset.name, N'') AS systemtype,
CAST(CASE WHEN baset.name IN (N'nchar', N'nvarchar') AND c.max_length <> -1
THEN c.max_length/2 ELSE c.max_length END AS INT) AS length,
c.precision AS precision,
c.scale as scale,
c.is_nullable,
dc.definition as default_definition,
idc.seed_value as identity_seed, idc.increment_value as identity_increment
FROM sys.tables t JOIN
sys.all_columns AS c
ON c.object_id = t.object_id LEFT OUTER JOIN
sys.types u
ON u.user_type_id = c.user_type_id LEFT OUTER JOIN
sys.types baset
ON baset.user_type_id = c.system_type_id AND
baset.user_type_id = baset.system_type_id LEFT OUTER JOIN
sys.default_constraints dc
ON c.object_id = dc.parent_object_id AND
c.column_id = dc.parent_column_id LEFT OUTER JOIN
sys.identity_columns idc
ON c.object_id = idc.object_id AND
c.column_id = idc.column_id
) c
ON a.t_name = c.t_name AND
c.column_id + 1 = a.rownum LEFT OUTER JOIN
(SELECT t.name as t_name, kc.name as pk_name,
(MAX(CASE WHEN index_column_id = 1 THEN '['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 2 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 3 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 4 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 5 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 6 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 7 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 8 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 9 THEN ','+'['+c.name+']' ELSE '' END) +
MAX(CASE WHEN index_column_id = 10 THEN ','+'['+c.name+']' ELSE '' END)
) as pk_columns
FROM sys.indexes i JOIN
sys.key_constraints kc
ON i.name = kc.name AND
kc.type = 'PK' JOIN
sys.tables t
ON i.object_id = t.object_id JOIN
sys.index_columns ic
ON i.object_id = ic.object_id AND
i.index_id = ic.index_id JOIN
sys.columns c
ON ic.index_column_id = c.column_id AND
ic.object_id = c.object_id
GROUP BY t.name, kc.name
) pk
ON pk.t_name = a.t_name
ORDER BY a.t_name, rownum