SQL SERVER DBA, Linux and Azure: T-SQL Generate attach and detach database script for all User Databases On a SQL Instance

T-SQL Generate attach and detach database script for all User Databases On a SQL Instance


/* SQL Server: T-SQL Script To Generate Attach and Detach Commands for all User Databases On a SQL Instance */
-- Overview: SQL Scripts that generates commands for your attach and detach stored procedures for all of your user databases
-- Usage: Change the 'SET @DetachOrAttach' parameter to a '0' (attach) or '1' (detach) value to generate your T-SQL commands
-- Environments: SQL Server 2008 / 2012 /2014/2014


USE [master];
GO
DECLARE @database NVARCHAR(200) ,
@cmd NVARCHAR(1000) ,
@detach_cmd NVARCHAR(4000) ,
@attach_cmd NVARCHAR(4000) ,
@file NVARCHAR(1000) ,
@i INT ,
@DetachOrAttach BIT;
SET @DetachOrAttach = 0; -- Change this to '0' for sp_attach_db commands; or '1' for sp_detach_db commands
-- 0 Generates Attach Script
-- 1 Generates Detach Script
DECLARE dbname_cur CURSOR STATIC LOCAL FORWARD_ONLY
FOR
SELECT RTRIM(LTRIM([name]))
FROM sys.databases
WHERE database_id > 4;
-- No system databases
OPEN dbname_cur
FETCH NEXT FROM dbname_cur INTO @database
WHILE @@FETCH_STATUS = 0
BEGIN
SELECT @i = 1;
SET @attach_cmd = '-- ' + QUOTENAME(@database) + CHAR(10)
+ 'EXEC sp_attach_db @dbname = ''' + @database + '''' + CHAR(10);
-- Change skip checks to false if you want to update statistics before you detach.
SET @detach_cmd = '-- ' + QUOTENAME(@database) + CHAR(10)
+ 'EXEC sp_detach_db @dbname = ''' + @database
+ ''' , @skipchecks = ''true'';' + CHAR(10);
-- Get a list of files for the database
DECLARE dbfiles_cur CURSOR STATIC LOCAL FORWARD_ONLY
FOR
SELECT physical_name
FROM sys.master_files
WHERE database_id = DB_ID(@database)
ORDER BY [file_id];
OPEN dbfiles_cur
FETCH NEXT FROM dbfiles_cur INTO @file
WHILE @@FETCH_STATUS = 0
BEGIN
SET @attach_cmd = @attach_cmd + ' ,@filename'
+ CAST(@i AS NVARCHAR(10)) + ' = ''' + @file + ''''
+ CHAR(10);
SET @i = @i + 1;
FETCH NEXT FROM dbfiles_cur INTO @file
END
CLOSE dbfiles_cur;
DEALLOCATE dbfiles_cur;
IF ( @DetachOrAttach = 0 )
BEGIN
-- Output attach script
PRINT @attach_cmd;
END
ELSE -- Output detach script
PRINT @detach_cmd;
FETCH NEXT FROM dbname_cur INTO @database
END
CLOSE dbname_cur;
DEALLOCATE dbname_cur;