Question

我有以下情况：我正在处理数据库包含数百个表的项目，而且我经常知道生成脚本需要哪个表，但在所有表的列表中找到它需要很多时间我想知道，有没有办法编写脚本来生成表的脚本。因为我已经知道了表名，所以输入它比在类似名称的大量列表中搜索更容易。

Answer 1

是的，你可以编写自己的程序来为给定的表名生成脚本，这些脚本将作为参数提供。在我的例子中，我正在通过“dbo.TABLE1＆＃39;作为此查询的参数：（当然，您可以将其包装到存储过程中）

DECLARE  
  @object_name SYSNAME  = 'dbo.TABLE1'
, @object_id INT  = object_id('dbo.TABLE1')
, @SQL NVARCHAR(MAX)  

SELECT  
  @object_name = '[' + OBJECT_SCHEMA_NAME(o.[object_id]) + '].[' +        OBJECT_NAME([object_id]) + ']'  
, @object_id = [object_id]  
FROM (SELECT [object_id] = @object_id) o  



SELECT @SQL = 'CREATE TABLE ' + @object_name + CHAR(13) + '(' + CHAR(13) +       STUFF((  
SELECT CHAR(13) + '    , [' + c.name + '] ' +   
    CASE WHEN c.is_computed = 1  
        THEN 'AS ' + OBJECT_DEFINITION(c.[object_id], c.column_id)  
        ELSE   
            CASE WHEN c.system_type_id != c.user_type_id   
                THEN '[' + SCHEMA_NAME(tp.[schema_id]) + '].[' + tp.name +     ']'   
                ELSE '[' + UPPER(tp.name) + ']'   
            END  +   
            CASE   
                WHEN tp.name IN ('varchar', 'char', 'varbinary', 'binary')  
                    THEN '(' + CASE WHEN c.max_length = -1   
                                    THEN 'MAX'   
                                    ELSE CAST(c.max_length AS VARCHAR(5))   
                                END + ')'  
                WHEN tp.name IN ('nvarchar', 'nchar')  
                    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 AND c.system_type_id = c.user_type_id   
                THEN ' COLLATE ' + c.collation_name  
                ELSE ''  
            END +  
            CASE WHEN c.is_nullable = 1   
                THEN ' NULL'  
                ELSE ' NOT NULL'  
            END +  
            CASE WHEN c.default_object_id != 0   
                THEN ' CONSTRAINT [' + OBJECT_NAME(c.default_object_id) + ']' +   
                     ' DEFAULT ' + OBJECT_DEFINITION(c.default_object_id)  
                ELSE ''  
            END +   
            CASE WHEN cc.[object_id] IS NOT NULL   
                THEN ' CONSTRAINT [' + cc.name + '] CHECK ' + cc.[definition]  
                ELSE ''  
            END +  
            CASE WHEN c.is_identity = 1   
                THEN ' IDENTITY(' + CAST(IDENTITYPROPERTY(c.[object_id], 'SeedValue') AS VARCHAR(5)) + ',' +   
                                CAST(IDENTITYPROPERTY(c.[object_id], 'IncrementValue') AS VARCHAR(5)) + ')'   
                ELSE ''   
            END   
    END  
FROM sys.columns c WITH(NOLOCK)  
JOIN sys.types tp WITH(NOLOCK) ON c.user_type_id = tp.user_type_id  
LEFT JOIN sys.check_constraints cc WITH(NOLOCK)   
     ON c.[object_id] = cc.parent_object_id   
    AND cc.parent_column_id = c.column_id  
WHERE c.[object_id] = @object_id  
ORDER BY c.column_id  
FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 7, '      ') +   
ISNULL((SELECT '  
, CONSTRAINT [' + i.name + '] PRIMARY KEY ' +   
CASE WHEN i.index_id = 1   
    THEN 'CLUSTERED'   
    ELSE 'NONCLUSTERED'   
END +' (' + (  
SELECT STUFF(CAST((  
    SELECT ', [' + COL_NAME(ic.[object_id], ic.column_id) + ']' +  
            CASE WHEN ic.is_descending_key = 1  
                THEN ' DESC'  
                ELSE ''  
            END  
    FROM sys.index_columns ic WITH(NOLOCK)  
    WHERE i.[object_id] = ic.[object_id]  
        AND i.index_id = ic.index_id  
    FOR XML PATH(N''), TYPE) AS NVARCHAR(MAX)), 1, 2, '')) + ')'  
FROM sys.indexes i WITH(NOLOCK)  
WHERE i.[object_id] = @object_id  
    AND i.is_primary_key = 1), '') + CHAR(13) + ');'  

SELECT   @SQL

Answer 2

这是存储过程代码的链接，您可以通过仅提供表名来添加和执行以获取DDL。

http://www.stormrage.com/SQLStuff/sp_GetDDLa_Latest.txt

用于为表生成脚本的SQL Server脚本

2 个答案: