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使用Query为现有表生成SQL创建脚本

如何解决《使用Query为现有表生成SQL创建脚本》经验,为你挑选了3个好方法。

我需要能够为SQL Server 2008中的现有表获取CREATE脚本.我假设我可以通过以某种方式查询sys.tables来执行此操作,但是这不会返回给我CREATE脚本数据.



1> Devart..:

这可能对你有所帮助.此脚本为任何表生成索引,FK,PK和公共结构.

例如 -

DDL:

CREATE TABLE [dbo].[WorkOut](
    [WorkOutID] [bigint] IDENTITY(1,1) NOT NULL,
    [TimeSheetDate] [datetime] NOT NULL,
    [DateOut] [datetime] NOT NULL,
    [EmployeeID] [int] NOT NULL,
    [IsMainWorkPlace] [bit] NOT NULL,
    [DepartmentUID] [uniqueidentifier] NOT NULL,
    [WorkPlaceUID] [uniqueidentifier] NULL,
    [TeamUID] [uniqueidentifier] NULL,
    [WorkShiftCD] [nvarchar](10) NULL,
    [WorkHours] [real] NULL,
    [AbsenceCode] [varchar](25) NULL,
    [PaymentType] [char](2) NULL,
    [CategoryID] [int] NULL,
    [Year]  AS (datepart(year,[TimeSheetDate])),
 CONSTRAINT [PK_WorkOut] PRIMARY KEY CLUSTERED 
(
    [WorkOutID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

ALTER TABLE [dbo].[WorkOut] ADD  
CONSTRAINT [DF__WorkOut__IsMainW__2C1E8537]  DEFAULT ((1)) FOR [IsMainWorkPlace]

ALTER TABLE [dbo].[WorkOut]  WITH CHECK ADD  CONSTRAINT [FK_WorkOut_Employee_EmployeeID] FOREIGN KEY([EmployeeID])
REFERENCES [dbo].[Employee] ([EmployeeID])

ALTER TABLE [dbo].[WorkOut] CHECK CONSTRAINT [FK_WorkOut_Employee_EmployeeID]

查询:

DECLARE @table_name SYSNAME
SELECT @table_name = 'dbo.WorkOut'

DECLARE 
      @object_name SYSNAME
    , @object_id INT

SELECT 
      @object_name = '[' + s.name + '].[' + o.name + ']'
    , @object_id = o.[object_id]
FROM sys.objects o WITH (NOWAIT)
JOIN sys.schemas s WITH (NOWAIT) ON o.[schema_id] = s.[schema_id]
WHERE s.name + '.' + o.name = @table_name
    AND o.[type] = 'U'
    AND o.is_ms_shipped = 0

DECLARE @SQL NVARCHAR(MAX) = ''

;WITH index_column AS 
(
    SELECT 
          ic.[object_id]
        , ic.index_id
        , ic.is_descending_key
        , ic.is_included_column
        , c.name
    FROM sys.index_columns ic WITH (NOWAIT)
    JOIN sys.columns c WITH (NOWAIT) ON ic.[object_id] = c.[object_id] AND ic.column_id = c.column_id
    WHERE ic.[object_id] = @object_id
),
fk_columns AS 
(
     SELECT 
          k.constraint_object_id
        , cname = c.name
        , rcname = rc.name
    FROM sys.foreign_key_columns k WITH (NOWAIT)
    JOIN sys.columns rc WITH (NOWAIT) ON rc.[object_id] = k.referenced_object_id AND rc.column_id = k.referenced_column_id 
    JOIN sys.columns c WITH (NOWAIT) ON c.[object_id] = k.parent_object_id AND c.column_id = k.parent_column_id
    WHERE k.parent_object_id = @object_id
)
SELECT @SQL = 'CREATE TABLE ' + @object_name + CHAR(13) + '(' + CHAR(13) + STUFF((
    SELECT CHAR(9) + ', [' + c.name + '] ' + 
        CASE WHEN c.is_computed = 1
            THEN 'AS ' + cc.[definition] 
            ELSE UPPER(tp.name) + 
                CASE WHEN tp.name IN ('varchar', 'char', 'varbinary', 'binary', 'text')
                       THEN '(' + CASE WHEN c.max_length = -1 THEN 'MAX' ELSE CAST(c.max_length AS VARCHAR(5)) END + ')'
                     WHEN tp.name IN ('nvarchar', 'nchar', 'ntext')
                       THEN '(' + CASE WHEN c.max_length = -1 THEN 'MAX' ELSE CAST(c.max_length / 2 AS VARCHAR(5)) END + ')'
                     WHEN tp.name IN ('datetime2', 'time2', 'datetimeoffset') 
                       THEN '(' + CAST(c.scale AS VARCHAR(5)) + ')'
                     WHEN tp.name = 'decimal' 
                       THEN '(' + CAST(c.[precision] AS VARCHAR(5)) + ',' + CAST(c.scale AS VARCHAR(5)) + ')'
                    ELSE ''
                END +
                CASE WHEN c.collation_name IS NOT NULL THEN ' COLLATE ' + c.collation_name ELSE '' END +
                CASE WHEN c.is_nullable = 1 THEN ' NULL' ELSE ' NOT NULL' END +
                CASE WHEN dc.[definition] IS NOT NULL THEN ' DEFAULT' + dc.[definition] ELSE '' END + 
                CASE WHEN ic.is_identity = 1 THEN ' IDENTITY(' + CAST(ISNULL(ic.seed_value, '0') AS CHAR(1)) + ',' + CAST(ISNULL(ic.increment_value, '1') AS CHAR(1)) + ')' ELSE '' END 
        END + CHAR(13)
    FROM sys.columns c WITH (NOWAIT)
    JOIN sys.types tp WITH (NOWAIT) ON c.user_type_id = tp.user_type_id
    LEFT JOIN sys.computed_columns cc WITH (NOWAIT) ON c.[object_id] = cc.[object_id] AND c.column_id = cc.column_id
    LEFT JOIN sys.default_constraints dc WITH (NOWAIT) ON c.default_object_id != 0 AND c.[object_id] = dc.parent_object_id AND c.column_id = dc.parent_column_id
    LEFT JOIN sys.identity_columns ic WITH (NOWAIT) ON c.is_identity = 1 AND c.[object_id] = ic.[object_id] AND c.column_id = ic.column_id
    WHERE c.[object_id] = @object_id
    ORDER BY c.column_id
    FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, CHAR(9) + ' ')
    + ISNULL((SELECT CHAR(9) + ', CONSTRAINT [' + k.name + '] PRIMARY KEY (' + 
                    (SELECT STUFF((
                         SELECT ', [' + c.name + '] ' + CASE WHEN ic.is_descending_key = 1 THEN 'DESC' ELSE 'ASC' END
                         FROM sys.index_columns ic WITH (NOWAIT)
                         JOIN sys.columns c WITH (NOWAIT) ON c.[object_id] = ic.[object_id] AND c.column_id = ic.column_id
                         WHERE ic.is_included_column = 0
                             AND ic.[object_id] = k.parent_object_id 
                             AND ic.index_id = k.unique_index_id     
                         FOR XML PATH(N''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, ''))
            + ')' + CHAR(13)
            FROM sys.key_constraints k WITH (NOWAIT)
            WHERE k.parent_object_id = @object_id 
                AND k.[type] = 'PK'), '') + ')'  + CHAR(13)
    + ISNULL((SELECT (
        SELECT CHAR(13) +
             'ALTER TABLE ' + @object_name + ' WITH' 
            + CASE WHEN fk.is_not_trusted = 1 
                THEN ' NOCHECK' 
                ELSE ' CHECK' 
              END + 
              ' ADD CONSTRAINT [' + fk.name  + '] FOREIGN KEY(' 
              + STUFF((
                SELECT ', [' + k.cname + ']'
                FROM fk_columns k
                WHERE k.constraint_object_id = fk.[object_id]
                FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '')
               + ')' +
              ' REFERENCES [' + SCHEMA_NAME(ro.[schema_id]) + '].[' + ro.name + '] ('
              + STUFF((
                SELECT ', [' + k.rcname + ']'
                FROM fk_columns k
                WHERE k.constraint_object_id = fk.[object_id]
                FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '')
               + ')'
            + CASE 
                WHEN fk.delete_referential_action = 1 THEN ' ON DELETE CASCADE' 
                WHEN fk.delete_referential_action = 2 THEN ' ON DELETE SET NULL'
                WHEN fk.delete_referential_action = 3 THEN ' ON DELETE SET DEFAULT' 
                ELSE '' 
              END
            + CASE 
                WHEN fk.update_referential_action = 1 THEN ' ON UPDATE CASCADE'
                WHEN fk.update_referential_action = 2 THEN ' ON UPDATE SET NULL'
                WHEN fk.update_referential_action = 3 THEN ' ON UPDATE SET DEFAULT'  
                ELSE '' 
              END 
            + CHAR(13) + 'ALTER TABLE ' + @object_name + ' CHECK CONSTRAINT [' + fk.name  + ']' + CHAR(13)
        FROM sys.foreign_keys fk WITH (NOWAIT)
        JOIN sys.objects ro WITH (NOWAIT) ON ro.[object_id] = fk.referenced_object_id
        WHERE fk.parent_object_id = @object_id
        FOR XML PATH(N''), TYPE).value('.', 'NVARCHAR(MAX)')), '')
    + ISNULL(((SELECT
         CHAR(13) + 'CREATE' + CASE WHEN i.is_unique = 1 THEN ' UNIQUE' ELSE '' END 
                + ' NONCLUSTERED INDEX [' + i.name + '] ON ' + @object_name + ' (' +
                STUFF((
                SELECT ', [' + c.name + ']' + CASE WHEN c.is_descending_key = 1 THEN ' DESC' ELSE ' ASC' END
                FROM index_column c
                WHERE c.is_included_column = 0
                    AND c.index_id = i.index_id
                FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '') + ')'  
                + ISNULL(CHAR(13) + 'INCLUDE (' + 
                    STUFF((
                    SELECT ', [' + c.name + ']'
                    FROM index_column c
                    WHERE c.is_included_column = 1
                        AND c.index_id = i.index_id
                    FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '') + ')', '')  + CHAR(13)
        FROM sys.indexes i WITH (NOWAIT)
        WHERE i.[object_id] = @object_id
            AND i.is_primary_key = 0
            AND i.[type] = 2
        FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)')
    ), '')

PRINT @SQL
--EXEC sys.sp_executesql @SQL

输出:

CREATE TABLE [dbo].[WorkOut]
(
      [WorkOutID] BIGINT NOT NULL IDENTITY(1,1)
    , [TimeSheetDate] DATETIME NOT NULL
    , [DateOut] DATETIME NOT NULL
    , [EmployeeID] INT NOT NULL
    , [IsMainWorkPlace] BIT NOT NULL DEFAULT((1))
    , [DepartmentUID] UNIQUEIDENTIFIER NOT NULL
    , [WorkPlaceUID] UNIQUEIDENTIFIER NULL
    , [TeamUID] UNIQUEIDENTIFIER NULL
    , [WorkShiftCD] NVARCHAR(10) COLLATE Cyrillic_General_CI_AS NULL
    , [WorkHours] REAL NULL
    , [AbsenceCode] VARCHAR(25) COLLATE Cyrillic_General_CI_AS NULL
    , [PaymentType] CHAR(2) COLLATE Cyrillic_General_CI_AS NULL
    , [CategoryID] INT NULL
    , [Year] AS (datepart(year,[TimeSheetDate]))
    , CONSTRAINT [PK_WorkOut] PRIMARY KEY ([WorkOutID] ASC)
)

ALTER TABLE [dbo].[WorkOut] WITH CHECK ADD CONSTRAINT [FK_WorkOut_Employee_EmployeeID] FOREIGN KEY([EmployeeID]) REFERENCES [dbo].[Employee] ([EmployeeID])
ALTER TABLE [dbo].[WorkOut] CHECK CONSTRAINT [FK_WorkOut_Employee_EmployeeID]

CREATE NONCLUSTERED INDEX [IX_WorkOut_WorkShiftCD_AbsenceCode] ON [dbo].[WorkOut] ([WorkShiftCD] ASC, [AbsenceCode] ASC)
INCLUDE ([WorkOutID], [WorkHours])

另请查看这篇文章 -

如何为现有表生成CREATE TABLE脚本:第1部分


没问题:)我明天会添加对计算列的支持.
请参阅更新的答案(添加对计算列的支持,修复列的顺序并加快查询速度).

2> Stephen Wrig..:

是指您希望创建生成CREATE脚本的TSQL脚本,还是使用SQL SERVER Management Studio中的管理工具生成Create脚本?

如果是后者,则只需右键单击一个表,然后选择脚本表为 - >创建到 - >新查询窗口.

如果要编写整个数据库脚本,请右键单击数据库并选择"任务" - >"生成脚本...",然后按照向导进行操作

否则就是从各种系统表中选择各种有趣的东西.



3> 小智..:

我意识到这个问题已经过时了,但是最近我刚刚开始进行搜索,所以我想我会发布上述答案的替代方案.

如果您希望create在.Net中以编程方式生成脚本,我强烈建议您查看服务器管理对象(SMO)或分布式管理对象(DMO) - 具体取决于您使用的SQL Server版本(前者是2005 +,后者2000).使用这些库,脚本编写表非常简单:

Server server      = new Server(".");
Database northwind = server.Databases["Northwind"];
Table categories   = northwind.Tables["Categories"];

StringCollection script = categories.Script();
string[] scriptArray    = new string[script.Count];

script.CopyTo(scriptArray, 0);

这是一篇包含更多信息的博客文章.

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jerry613
这个屌丝很懒,什么也没留下!
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