SQL Server

Информация взята с ресурса: https://habrahabr.ru/post/241079/

Общая информация о SQL сервере

-- Имена сервера и экземпляра 
Select @@SERVERNAME as [Server\Instance]; 

-- версия SQL Server 
Select @@VERSION as SQLServerVersion; 

-- экземпляр SQL Server 
Select @@ServiceName AS ServiceInstance;

 -- Текущая БД (БД, в контексте которой выполняется запрос)
Select DB_NAME() AS CurrentDB_Name;

Связанные сервера linked servers

EXEC sp_helpserver; 

--OR 

EXEC sp_linkedservers; 

--OR 

SELECT  @@SERVERNAME AS Server ,
        Server_Id AS  LinkedServerID ,
        name AS LinkedServer ,
        Product ,
        Provider ,
        Data_Source ,
        Modify_Date
FROM    sys.servers
ORDER BY name; 

Список всех БД

EXEC sp_helpdb; 

--OR 

EXEC sp_Databases; 

--OR 

SELECT  @@SERVERNAME AS Server ,
        name AS DBName ,
        recovery_model_Desc AS RecoveryModel ,
        Compatibility_level AS CompatiblityLevel ,
        create_date ,
        state_desc
FROM    sys.databases
ORDER BY Name; 

--OR 

SELECT  @@SERVERNAME AS Server ,
        d.name AS DBName ,
        create_date ,
        compatibility_level ,
        m.physical_name AS FileName
FROM    sys.databases d
        JOIN sys.master_files m ON d.database_id = m.database_id
WHERE   m.[type] = 0 -- data files only
ORDER BY d.name; 

Путь к последнему бэкапу

SELECT  @@Servername AS ServerName ,
        d.Name AS DBName ,
        b.Backup_finish_date ,
        bmf.Physical_Device_name
FROM    sys.databases d
        INNER JOIN msdb..backupset b ON b.database_name = d.name
                                        AND b.[type] = 'D'
        INNER JOIN msdb.dbo.backupmediafamily bmf ON b.media_set_id = bmf.media_set_id
ORDER BY d.NAME ,
        b.Backup_finish_date DESC; 

GO

Пользовательские соединения

SELECT  *
FROM    sys.dm_exec_sessions

Информация об объектах БД sys.objects

-- В примере U - таблицы
-- Попробуйте подставить другие значения type в WHERE
SELECT  *
FROM    sys.objects
WHERE   type = 'U';

Расположение файлов БД

EXEC sp_Helpfile; 

--OR 

SELECT  @@Servername AS Server ,
        DB_NAME() AS DB_Name ,
        File_id ,
        Type_desc ,
        Name ,
        LEFT(Physical_Name, 1) AS Drive ,
        Physical_Name ,
        RIGHT(physical_name, 3) AS Ext ,
        Size ,
        Growth
FROM    sys.database_files
ORDER BY File_id; 

Таблицы

EXEC sp_tables; -- Помните, что этот метод вернёт и таблицы, и представления 

--OR 

SELECT  @@Servername AS ServerName ,
        TABLE_CATALOG ,
        TABLE_SCHEMA ,
        TABLE_NAME
FROM     INFORMATION_SCHEMA.TABLES
WHERE   TABLE_TYPE = 'BASE TABLE'
ORDER BY TABLE_NAME ;

--OR

SELECT  @@Servername AS ServerName ,
        DB_NAME() AS DBName ,
        o.name AS 'TableName' ,
        o.[Type] ,
        o.create_date
FROM    sys.objects o
WHERE   o.Type = 'U' -- User table 
ORDER BY o.name;

--OR 

SELECT  @@Servername AS ServerName ,
        DB_NAME() AS DBName ,
        t.Name AS TableName,
        t.[Type],
        t.create_date
FROM    sys.tables t
ORDER BY t.Name;