Проблемы с преобразованием SQL-запроса в XML-вывод для SQL Server 2000

Question

Мне нужно вывести следующий запрос в формате XML для SQL 2000. Кажется, что у меня слишком много подзапросов, а уровни вложенности для XML в SQL 2000 должны быть точными. Любая помощь приветствуется.

SELECT sd.dbid AS DatabaseID 
,NAME AS DatabaseName 
,CASE 
    WHEN NAME IN (
      'master' 
      ,'msdb' 
      ,'model' 
      ,'tempdb' 
      ,'distribution' 
      ) 
     THEN 'S' 
    ELSE 'U' 
    END AS SysUserType 
,cmptlevel AS CompatibilityLevel 
,databasepropertyex(NAME, 'Collation') AS CollationName 
,CASE 
    WHEN databasepropertyex(NAME, 'Status') = 'ONLINE' 
     THEN 0 
    WHEN databasepropertyex(NAME, 'Status') = 'RESTORING' 
     THEN 1 
    WHEN databasepropertyex(NAME, 'Status') = 'RECOVERING' 
     THEN 2 
    WHEN databasepropertyex(NAME, 'Status') = 'RECOVERY_PENDING' 
     THEN 3 
    WHEN databasepropertyex(NAME, 'Status') = 'SUSPECT' 
     THEN 4 
    WHEN databasepropertyex(NAME, 'Status') = 'EMERGENCY' 
     THEN 5 
    WHEN databasepropertyex(NAME, 'Status') = 'OFFLINE' 
     THEN 6 
    WHEN databasepropertyex(NAME, 'Status') = 'COPYING' 
     THEN 7 
    END AS STATE 
,databasepropertyex(NAME, 'Status') AS StateDesc 
,CASE 
    WHEN databasepropertyex(NAME, 'Recovery') = 'FULL' 
     THEN 1 
    WHEN databasepropertyex(NAME, 'Recovery') = 'BULK_LOGGED' 
     THEN 2 
    WHEN databasepropertyex(NAME, 'Recovery') = 'SIMPLE' 
     THEN 3 
    END AS RecoveryModel 
,databasepropertyex(NAME, 'Recovery') AS RecoveryModelDesc 
,crdate AS DatabaseCreationDate 
,B.last_db_backup_date AS LastBackupDate 
,a.SizeMB AS SizeMB 
,c.NumberOfConnections AS ActiveDBConnections 
,SERVERPROPERTY('Machinename') AS SQLServerName 
,CASE 
    WHEN SERVERPROPERTY('Instancename') IS NULL 
     THEN 'Default' 
    ELSE SERVERPROPERTY('Instancename') 
    END AS SQLServerInstanceName 
,SERVERPROPERTY('ProductVersion') AS SQLServerVersion 
,SERVERPROPERTY('Edition') AS SQLServerEdition 
FROM (
SELECT CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS SERVER 
    ,msdb.dbo.backupset.database_name 
    ,MAX(msdb.dbo.backupset.backup_finish_date) AS last_db_backup_date 
FROM msdb.dbo.backupmediafamily 
INNER JOIN msdb.dbo.backupset ON msdb.dbo.backupmediafamily.media_set_id = msdb.dbo.backupset.media_set_id 
GROUP BY msdb.dbo.backupset.database_name 
) AS B 
FULL JOIN sysdatabases sd ON sd.NAME = b.database_name 
INNER JOIN (
SELECT (SUM(size) * 8/1024) AS SizeMB 
    ,dbid 
FROM sysaltfiles 
GROUP BY dbid 
) AS A ON sd.dbid = a.dbid 
FULL JOIN (
SELECT DB_NAME(dbid) AS DBName 
    ,COUNT(dbid) AS NumberOfConnections 
FROM sysprocesses 
WHERE dbid > 0 
    AND spid >= 51 
GROUP BY dbid 
) AS C ON sd.NAME = C.DBName 
ORDER BY sd.dbid 

Я смог написать это для SQL 2005 и выше и отлично работает! Но не могу за жизнь мне получить его для SQL 2000

SELECT sd.database_id AS DatabaseID 
,sd.NAME AS DatabaseName 
,CASE 
    WHEN sd.NAME IN (
      'master' 
      ,'msdb' 
      ,'model' 
      ,'tempdb' 
      ,'distribution' 
      ) 
     THEN 'S' 
    ELSE 'U' 
    END AS SysUserType 
,sd.compatibility_level AS CompatibilityLevel 
,sd.collation_name AS CollationName 
,sd.STATE AS STATE 
,sd.state_desc AS StateDesc 
,recovery_model AS RecoveryModel 
,recovery_model_desc AS RecoveryModelDesc 
,create_date AS DatabaseCreationDate 
,B.last_db_backup_date AS LastBackupDate 
,a.SizeMB AS SizeMB 
,c.NumberOfConnections AS ActiveDBConnections 
,SERVERPROPERTY('Machinename') AS SQLServerName 
,CASE 
    WHEN SERVERPROPERTY('Instancename') IS NULL 
     THEN 'Default' 
    ELSE SERVERPROPERTY('Instancename') 
    END AS SQLServerInstanceName 
,SERVERPROPERTY('ProductVersion') AS SQLServerVersion 
,SERVERPROPERTY('Edition') AS SQLServerEdition 
FROM (
SELECT CONVERT(CHAR(100), SERVERPROPERTY('Servername')) AS SERVER 
    ,msdb.dbo.backupset.database_name 
    ,MAX(msdb.dbo.backupset.backup_finish_date) AS last_db_backup_date 
FROM msdb.dbo.backupmediafamily 
INNER JOIN msdb.dbo.backupset ON msdb.dbo.backupmediafamily.media_set_id = msdb.dbo.backupset.media_set_id 
GROUP BY msdb.dbo.backupset.database_name 
) AS B 
RIGHT JOIN sys.databases sd ON sd.NAME = B.database_name 
INNER JOIN (
SELECT (SUM(size) * 8/1024) AS SizeMB 
    ,database_id 
FROM sys.master_files 
GROUP BY database_id 
) AS A ON sd.database_id = a.database_id 
FULL JOIN (
SELECT DB_NAME(dbid) AS DBName 
    ,COUNT(dbid) AS NumberOfConnections 
FROM sys.sysprocesses 
WHERE dbid > 0 
    AND spid >= 51 
GROUP BY dbid 
) AS C ON sd.NAME = C.DBName 
ORDER BY sd.database_id 
FOR XML RAW ('DATABASES'), 
ROOT ('SERVERROOT'), 
Elements 

Answer 1

Попробуйте это: Я упрощенным ваш запрос по телефону три столбца LastBackupDate, SizeMB и ActiveDBConnections непосредственно без вашего вздутие соединения. Нет SQL-Server-2000 готов к тестированию, но я бы предположить, что это должно работать:

SELECT 
    sd.dbid AS DatabaseID 
    ,NAME AS DatabaseName 
    ,CASE 
     WHEN NAME IN ('master','msdb','model','tempdb','distribution') THEN 'S' 
     ELSE 'U' 
    END AS SysUserType 
    ,cmptlevel AS CompatibilityLevel 
    ,databasepropertyex(NAME, 'Collation') AS [CollationName] 
    ,CASE databasepropertyex(NAME, 'Status') 
     WHEN 'ONLINE'    THEN 0 
     WHEN 'RESTORING'   THEN 1 
     WHEN 'RECOVERING'   THEN 2 
     WHEN 'RECOVERY_PENDING' THEN 3 
     WHEN 'SUSPECT'    THEN 4 
     WHEN 'EMERGENCY'   THEN 5 
     WHEN 'OFFLINE'    THEN 6 
     WHEN 'COPYING'    THEN 7 
    END AS [STATE] 
    ,databasepropertyex(NAME, 'Status') AS StateDesc 
    ,CASE databasepropertyex(NAME, 'Recovery') 
     WHEN 'FULL'    THEN 1 
     WHEN 'BULK_LOGGED'   THEN 2 
     WHEN 'SIMPLE'    THEN 3 
    END AS RecoveryModel 
    ,databasepropertyex(NAME, 'Recovery') AS RecoveryModelDesc 
    ,crdate AS DatabaseCreationDate 
    ,(SELECT MAX(bs.backup_finish_date) FROM msdb.dbo.backupset AS bs WHERE bs.database_name=sd.name) AS LastBackupDate 
    ,(SELECT (SUM(saf.size) * 8/1024) FROM sysaltfiles AS saf WHERE saf.dbid=sd.dbid) AS SizeMB 
    ,(SELECT COUNT(sp.dbid) FROM sysprocesses AS sp WHERE dbid > 0 AND spid >= 51 AND sp.dbid=sd.dbid) AS ActiveDBConnections 
    ,SERVERPROPERTY('Machinename') AS SQLServerName 
    ,CASE 
     WHEN SERVERPROPERTY('Instancename') IS NULL 
      THEN 'Default' 
     ELSE SERVERPROPERTY('Instancename') 
     END AS SQLServerInstanceName 
    ,SERVERPROPERTY('ProductVersion') AS SQLServerVersion 
    ,SERVERPROPERTY('Edition') AS SQLServerEdition 
FROM sysdatabases sd 
ORDER BY sd.dbid 

Один намек

Как вы, наверное, знаете, SQL-сервер еще не знал, типа XML, но было FOR XML RAW, FOR XML AUTO и FOR XML EXPLICIT, возвращающее XML в строковом типе.