I ran into the same problem and the author’s answer is not very detailed, so I’ll talk a little more about how I solved it.
I needed to duplicate tables starting with the given prefix ('from_') into new tables with the prefix ('to _').
Create a CREATE statement
( fooobar.com/questions/82030/...) CREATE , 'from_'.
select 'create table [' + so.name + '] (' + o.list + ')' + CASE WHEN tc.Constraint_Name IS NULL THEN '' ELSE 'ALTER TABLE ' + so.Name + ' ADD CONSTRAINT ' + tc.Constraint_Name + ' PRIMARY KEY ' + ' (' + LEFT(j.List, Len(j.List)-1) + ')' END as query
OBJECTPROPERTY(object_id(TABLE_NAME), 'TableHasIdentity') as tablehasidentity
from sysobjects so
cross apply
(SELECT
' ['+column_name+'] ' +
data_type + case data_type
when 'sql_variant' then ''
when 'text' then ''
when 'ntext' then ''
when 'decimal' then '(' + cast(numeric_precision as varchar) + ', ' + cast(numeric_scale as varchar) + ')'
else coalesce('('+case when character_maximum_length = -1 then 'MAX' else cast(character_maximum_length as varchar) end +')','') end + ' ' +
case when exists (
select id from syscolumns
where object_name(id)=so.name
and name=column_name
and columnproperty(id,name,'IsIdentity') = 1
) then
'IDENTITY(' +
cast(ident_seed(so.name) as varchar) + ',' +
cast(ident_incr(so.name) as varchar) + ')'
else ''
end + ' ' +
(case when IS_NULLABLE = 'No' then 'NOT ' else '' end ) + 'NULL ' +
case when information_schema.columns.COLUMN_DEFAULT IS NOT NULL THEN 'DEFAULT '+ information_schema.columns.COLUMN_DEFAULT ELSE '' END + ', '
from information_schema.columns where table_name = so.name
order by ordinal_position
FOR XML PATH('')) o (list)
left join
information_schema.table_constraints tc
on tc.Table_name = so.Name
AND tc.Constraint_Type = 'PRIMARY KEY'
cross apply
(select '[' + Column_Name + '], '
FROM information_schema.key_column_usage kcu
WHERE kcu.Constraint_Name = tc.Constraint_Name
ORDER BY
ORDINAL_POSITION
FOR XML PATH('')) j (list)
where xtype = 'U'
AND name NOT IN ('dtproperties') AND name like 'from_%'
:
['query'] = create table [from_users_roles] ( [uid] int NOT NULL DEFAULT ((0)), [rid] int NOT NULL DEFAULT ((0)), )ALTER TABLE from_users_roles ADD CONSTRAINT from_users_roles_pkey PRIMARY KEY ([uid], [rid])
['tablehasidentity'] = 1 or 0
'from_' 'to_' CREATE:
create table [to_users_roles] ( [uid] int NOT NULL DEFAULT ((0)), [rid] int NOT NULL DEFAULT ((0)), )ALTER TABLE to_users_roles ADD CONSTRAINT to_users_roles_pkey PRIMARY KEY ([uid], [rid]);
INSERT
, :
TablehasIdentity == 0
INSERT INTO to_users_roles SELECT * FROM from_users_roles
TablehasIdentity == 1
. , IDENTITY_INSERT .
DECLARE @Query nvarchar(4000)
DECLARE @columnlist nvarchar(4000)
// Result of this query e.g.: "[cid], [pid], [nid], [uid], [subject]"
SET @columnlist = (SELECT SUBSTRING((SELECT ', ' + QUOTENAME(COLUMN_NAME) FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'from_users_roles' ORDER BY ORDINAL_POSITION FOR XML path('')), 3, 200000))
SET @query ='SET IDENTITY_INSERT to_users_roles ON; INSERT INTO to_users_roles (' + @columnlist + ') SELECT ' + @columnlist + ' FROM from_users_roles; SET IDENTITY_INSERT to_users_roles OFF'
exec sp_executesql @query;
.