SQL Server 2016 Change Object Owner - sql-server

Question

I've inherited a SQL 2008 dbase in which all of its objects are prefixed with the name of the developer as owner, i.e. ownername.sp_get_all_users.
I've restored the dbase onto SQL Server 2016 Express Edition.
There are several hundred dbase objects, is there a way to automate changing the object owners to dbo rather than manually editing each object?
I've tried the following but apparently you can no longer make ad-hoc changes to objects since SQL Server 2005?
SELECT * from sysobjects where uid = user_id('UseNAme')
declare #Return int
exec #Return = sp_configure 'allow updates', '1'
SELECT #Return as 'Returned Code'
GO
reconfigure WITH OVERRIDE
GO
DECLARE #Rows int, #Error int
BEGIN TRANSACTION
update sysobjects set uid = user_id('dbo') where uid = user_id('UseNAme')
SELECT #Error = ##Error, #Rows = ##RowCount
SELECT #Rows as '#Rows'
IF #Rows > 0
BEGIN
SELECT #Rows AS '#Rows'
COMMIT TRANSACTION
END
else
BEGIN
SELECT #Error AS 'Error #'
ROLLBACK TRANSACTION
END
exec sp_configure 'allow updates', '0'
reconfigure WITH OVERRIDE
go
Any help most appreciated.

Answer 1

You have to use Alter Schema...
ALTER SCHEMA oldschemaname TRANSFER dbo.Address;
To Automate use below
this will change all tables which have a schema other than system to dbo,note if you have two tables in different schema,they can't exist in same schema
select *,row_number() over (order by (select null)) as rownum
into #tables
from information_Schema.tables
where table_schema in (select name from sys.schemas
where name not in ('dbo','guest','INFORMATION_SCHEMA','sys') and principal_id <16384
)
now move
declare #min int,#max int
select #min=min(rownum),#max=max(rownum)
from #tables
declare #tblname varchar(255),#schemaname sysname
declare #sql varchar(max)
while #min<=#max
Begin
select #tblname=table_name,#schemaname=table_schema from
#tables where rownum=#min
set #sql='alter schema dbo transfer '+ #schemaname+'.'+#tblname
--print #sql
exec(#sql)
Set #min=#min+1
End
sp_change object owner as per documentation states..
This stored procedure only works with the objects available in MicrosoftSQL Server 2000. This feature will be removed in a future version of Microsoft SQL Server. Avoid using this feature in new development work, and plan to modify applications that currently use this feature. Use ALTER SCHEMA or ALTER AUTHORIZATION instead. sp_changeobjectowner changes both the schema and the owner. To preserve compatibility with earlier versions of SQL Server, this stored procedure will only change object owners when both the current owner and the new owner own schemas that have the same name as their database user names.

Answer 2

Use this sp_changeobjectowner
As explained here MSDN
For example: EXEC sp_changeobjectowner 'YourObject', 'dbo'
You can use this to alter schema statement for newer SQL Server DBS
declare #sql varchar(8000), #table varchar(1000), #oldschema varchar(1000), #newschema varchar(1000)
set #oldschema = 'dbo'
set #newschema = 'exe'
while exists(select * from sys.tables where schema_name(schema_id) = #oldschema)
begin
select #table = name from sys.tables
where object_id in(select min(object_id) from sys.tables where schema_name(schema_id) = #oldschema)
set #sql = 'alter schema ' + #newschema + ' transfer ' + #oldschema + '.' + #table
exec(#sql)
end

Answer 3

Your general idea of looping through the objects owned by the developer is a good idea (assuming you've tested the heck out of it). I'd suggest using the ALTER AUTHORIZATION command instead MSDN Doc

Answer 4

In addition to the advice above, the following changes the owner of SPs:
Declare #sql varchar(8000),
#table varchar(1000),
#oldschema varchar(1000),
#newschema varchar(1000)
set #oldschema = 'developername'
set #newschema = 'dbo'
while exists(select * from information_schema.routines where routine_type = 'PROCEDURE' and routine_schema = #oldschema )
begin
select #table = SPECIFIC_NAME from information_schema.routines
where SPECIFIC_NAME in(select SPECIFIC_NAME from information_schema.routines where routine_type = 'PROCEDURE' and routine_schema = #oldschema)
set #sql = 'alter schema ' + #newschema + ' transfer ' + #oldschema + '.' + #table
exec(#sql)
end