May 14, 2012

sp_MSforeachdb (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

I have posted alot more, find the whole list here.

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sys.sp_MSforeachdb(nvarchar @command1
, nchar @replacechar
, nvarchar @command2
, nvarchar @command3
, nvarchar @precommand
, nvarchar @postcommand)


* The following table definition will be created by SQLDMO at start of each connection.
* We don't create it here temporarily because we need it in Exec() or upgrade won't work.

create proc sys.sp_MSforeachdb
@command1 nvarchar(2000), @replacechar nchar(1) = N'?', @command2 nvarchar(2000) = null, @command3 nvarchar(2000) = null,
@precommand nvarchar(2000) = null, @postcommand nvarchar(2000) = null
set deadlock_priority low

-- This proc returns one or more rows for each accessible db, with each db defaulting to its own result set --
-- @precommand and @postcommand may be used to force a single result set via a temp table. --

-- Preprocessor won't replace within quotes so have to use str(). --
declare @inaccessible nvarchar(12), @invalidlogin nvarchar(12), @dbinaccessible nvarchar(12)
select @inaccessible = ltrim(str(convert(int, 0x03e0), 11))
select @invalidlogin = ltrim(str(convert(int, 0x40000000), 11))
select @dbinaccessible = N'0x80000000' -- SQLDMODbUserProf_InaccessibleDb; the negative number doesn't work in convert() --

if (@precommand is not null)

declare @origdb nvarchar(128)
select @origdb = db_name()

-- If it's a single user db and there's an entry for it in sysprocesses who isn't us, we can't use it. --
-- Create the select --
exec(N'declare hCForEachDatabase cursor global for select name from master.dbo.sysdatabases d ' +
N' where (d.status & ' + @inaccessible + N' = 0)' +
N' and (DATABASEPROPERTYEX(, ''UserAccess'') <> ''SINGLE_USER'' and (has_dbaccess( = 1))' )

declare @retval int
select @retval = @@error
if (@retval = 0)
exec @retval = sys.sp_MSforeach_worker @command1, @replacechar, @command2, @command3, 1

if (@retval = 0 and @postcommand is not null)

declare @tempdb nvarchar(258)
SELECT @tempdb = REPLACE(@origdb, N']', N']]')
exec (N'use ' + N'[' + @tempdb + N']')

return @retval

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