如何獲得表中創建腳本動態

Question

我需要得到表通過query.is這可能創建腳本，通過傳遞表和數據庫名稱作爲變量來獲得腳本..

Answer 1

這個TSQL

DECLARE @table_name SYSNAME 

SELECT @table_name = 'dbo.tablename' 

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 

嘗試