SQL Server 2005 - Хороший SQL для создания словаря данных

Question

Я должен создать словарь данных в существующей базе данных для всех пользовательских таблиц в пределах этой базы данных в SQL Server 2005.

Кто-нибудь есть хороший кусок SQL для использовать для этой цели. Я собираюсь добавлять комментарии в себя после того, как у меня есть детали таблиц и столбцов.

Answer 1

У меня нет точного sql, но вам нужно будет запросить таблицы systables и syscolumns, в которых есть вся информация, необходимая для создания словаря данных.

Answer 2

Я бы использовал «information schema». Вот два из наиболее полезных видов:

SELECT * FROM INFORMATION_SCHEMA.Tables 
SELECT * FROM INFORMATION_SCHEMA.Columns 

Answer 3

Вместо того, чтобы делать это самостоятельно, вы можете взглянуть на некоторые SQL Server документации инструментов/скриптов:

http://www.mssqltips.com/tip.asp?tip=1250

http://www.red-gate.com/products/SQL_Doc/index.htm

http://www.mssqltips.com/tip.asp?tip=1499

Answer 4

https://www.csvreader.com/posts/data_dictionary.php

SELECT 
    d.[primary key], 
    d.[foreign key], 
    CASE 
     WHEN LEN(d.[column]) = 0 THEN d.[table] 
     ELSE '' 
    END AS [table], 
    d.[column], 
    CAST(d.[description] AS VARCHAR(MAX)) AS [description], 
    d.[data type], 
    d.nullable, 
    d.[identity], 
    d.[default] 
FROM 
    (
     SELECT 
      '' AS [primary key], 
      '' AS [foreign key], 
      s.[name] AS [schema], 
      CASE 
       WHEN s.[name] = 'dbo' THEN t.[name] 
       ELSE s.[name] + '.' + t.[name] 
      END AS [table], 
      '' AS [column], 
      ISNULL(RTRIM(CAST(ep.[value] AS NVARCHAR(4000))), '') AS [description], 
      '' AS [data type], 
      '' AS nullable, 
      '' AS [identity], 
      '' AS [default], 
      NULL AS column_id 
     FROM 
      sys.tables t 

       INNER JOIN sys.schemas s ON 
        s.[schema_id] = t.[schema_id] 

       -- get description of table, if available 
       LEFT OUTER JOIN sys.extended_properties ep ON 
        ep.major_id = t.[object_id] AND 
        ep.minor_id = 0 AND 
        ep.name = 'MS_Description' AND 
        ep.class = 1 
     WHERE 
      t.is_ms_shipped = 0 AND 
      NOT EXISTS 
      (
       SELECT * 
       FROM 
        sys.extended_properties ms 
       WHERE 
        ms.major_id = t.[object_id] AND 
        ms.minor_id = 0 AND 
        ms.class = 1 AND 
        ms.[name] = 'microsoft_database_tools_support' 
      ) 

     UNION ALL 

     SELECT 
      CASE 
       WHEN pk.column_id IS NOT NULL THEN 'PK' 
       ELSE '' 
      END AS [primary key], 
      CASE 
       WHEN fk.primary_table IS NOT NULL 
        THEN fk.primary_table + '.' + fk.primary_column 
       ELSE '' 
      END AS [foreign key], 
      s.[name] AS [schema], 
      CASE 
       WHEN s.[name] = 'dbo' THEN t.[name] 
       ELSE s.[name] + '.' + t.[name] 
      END AS [table], 
      c.[name] AS [column], 
      ISNULL(RTRIM(CAST(ep.[value] AS NVARCHAR(4000))), '') AS [description], 
      CASE 
       WHEN uty.[name] IS NOT NULL THEN uty.[name] 
       ELSE '' 
      END + 
       CASE 
        WHEN uty.[name] IS NOT NULL AND sty.[name] IS NOT NULL THEN '(' 
        ELSE '' 
       END + 
       CASE 
        WHEN sty.[name] IS NOT NULL THEN sty.[name] 
        ELSE '' 
       END + 
       CASE 
        WHEN sty.[name] IN ('char', 'nchar', 'varchar', 'nvarchar', 'binary', 'varbinary') 
         THEN '(' + 
          CASE 
           WHEN c.max_length = -1 THEN 'max' 
           ELSE 
            CASE 
             WHEN sty.[name] IN ('nchar', 'nvarchar') 
              THEN CAST(c.max_length/2 AS VARCHAR(MAX)) 
             ELSE 
              CAST(c.max_length AS VARCHAR(MAX)) 
            END 
          END 
          + ')' 
        WHEN sty.[name] IN ('numeric', 'decimal') 
         THEN '(' + 
          CAST(c.precision AS VARCHAR(MAX)) + ', ' + CAST(c.scale AS VARCHAR(MAX)) 
          + ')' 
        ELSE 
         '' 
       END + 
       CASE 
        WHEN uty.[name] IS NOT NULL AND sty.[name] IS NOT NULL THEN ')' 
        ELSE '' 
       END AS [data type], 
      CASE 
       WHEN c.is_nullable = 1 THEN 'Y' 
       ELSE '' 
      END AS nullable, 
      CASE 
       WHEN c.is_identity = 1 THEN 'Y' 
       ELSE '' 
      END AS [identity], 
      ISNULL(dc.[definition], '') AS [default], 
      c.column_id 
     FROM 
      sys.columns c 
       INNER JOIN sys.tables t ON 
        t.[object_id] = c.[object_id] 

       INNER JOIN sys.schemas s ON 
        s.[schema_id] = t.[schema_id] 

       -- get name of user data type 
       LEFT OUTER JOIN sys.types uty ON 
        uty.system_type_id = c.system_type_id AND 
        uty.user_type_id = c.user_type_id AND 
        c.user_type_id <> c.system_type_id 

       -- get name of system data type 
       LEFT OUTER JOIN sys.types sty ON 
        sty.system_type_id = c.system_type_id AND 
        sty.user_type_id = c.system_type_id 

       -- get description of column, if available 
       LEFT OUTER JOIN sys.extended_properties ep ON 
        ep.major_id = t.[object_id] AND 
        ep.minor_id = c.column_id AND 
        ep.[name] = 'MS_Description' AND 
        ep.[class] = 1 

       -- get default's code text 
       LEFT OUTER JOIN sys.default_constraints dc ON 
        dc.parent_object_id = t.[object_id] AND 
        dc.parent_column_id = c.column_id 

       -- check for inclusion in primary key 
       LEFT OUTER JOIN 
       (
        SELECT 
         ic.column_id, 
         i.[object_id] 
        FROM 
         sys.indexes i 
          INNER JOIN sys.index_columns ic ON 
           ic.index_id = i.index_id AND 
           ic.[object_id] = i.[object_id] 
        WHERE 
         i.is_primary_key = 1 
       ) pk ON 
        pk.column_id = c.column_id AND 
        pk.[object_id] = t.[object_id] 

       -- check for inclusion in foreign key 
       LEFT OUTER JOIN 
       (
        SELECT 
         CASE 
          WHEN s.[name] = 'dbo' THEN pk.[name] 
          ELSE s.[name] + '.' + pk.[name] 
         END AS primary_table, 
         pkc.[name] as primary_column, 
         fkc.parent_object_id, 
         fkc.parent_column_id 
        FROM 
         sys.foreign_keys fk 
          INNER JOIN sys.tables pk ON 
           fk.referenced_object_id = pk.[object_id] 
          INNER JOIN sys.schemas s ON 
           s.[schema_id] = pk.[schema_id] 
          INNER JOIN sys.foreign_key_columns fkc ON 
           fkc.constraint_object_id = fk.[object_id] AND 
           fkc.referenced_object_id = pk.[object_id] 
          INNER JOIN sys.columns pkc ON 
           pkc.[object_id] = pk.[object_id] AND 
           pkc.column_id = fkc.referenced_column_id 
       ) fk ON 
        fk.parent_object_id = t.[object_id] AND 
        fk.parent_column_id = c.column_id 
     WHERE 
      t.is_ms_shipped = 0 AND 
      NOT EXISTS 
      (
       SELECT * 
       FROM 
        sys.extended_properties ms 
       WHERE 
        ms.major_id = t.[object_id] AND 
        ms.minor_id = 0 AND 
        ms.class = 1 AND 
        ms.[name] = 'microsoft_database_tools_support' 
      ) 
    ) d 
ORDER BY 
    d.[schema], 
    d.[table], 
    d.column_id;