Копия структуры таблицы

declare @lv_T001 table (IDT001 INTEGER identity(1,1), BUKRS nvarchar(4))

insert into @lv_bukrs select bukrs from T001

select * From syscomments

select * into NewTable from MyTable;

insert into @tbl select  ...

DECLARE @object_name SYSNAME , @object_id INT , @SQL NVARCHAR(MAX) 
  SELECT @object_name = '[' + OBJECT_SCHEMA_NAME(o.[object_id]) + '].[' + OBJECT_NAME([object_id]) + ']' , @object_id = [object_id]
  FROM (SELECT [object_id] = OBJECT_ID('dbo.T001', 'U')) o SELECT @SQL = 'CREATE TABLE ' + @object_name + CHAR(13) + '(' + CHAR(13) + STUFF(( SELECT CHAR(13) + ' , [' + c.name + '] ' + CASE WHEN c.is_computed = 1 THEN 'AS ' + OBJECT_DEFINITION(c.[object_id], c.column_id) ELSE CASE WHEN c.system_type_id != c.user_type_id THEN '[' + SCHEMA_NAME(tp.[schema_id]) + '].[' + tp.name + ']' ELSE '[' + UPPER(tp.name) + ']' END + CASE WHEN tp.name IN ('varchar', 'char', 'varbinary', 'binary') THEN '(' + CASE WHEN c.max_length = -1 THEN 'MAX' ELSE CAST(c.max_length AS VARCHAR(5)) END + ')' WHEN tp.name IN ('nvarchar', 'nchar') THEN '(' + CASE WHEN c.max_length = -1 THEN 'MAX' ELSE CAST(c.max_length / 2 AS VARCHAR(5)) END + ')' WHEN tp.name IN ('datetime2', 'time2', 'datetimeoffset') THEN '(' + CAST(c.scale AS VARCHAR(5)) + ')' WHEN tp.name = 'decimal' THEN '(' + CAST(c.[precision] AS VARCHAR(5)) + ',' + CAST(c.scale AS VARCHAR(5)) + ')' ELSE '' END + CASE WHEN c.collation_name IS NOT NULL AND c.system_type_id = c.user_type_id THEN ' COLLATE ' + c.collation_name ELSE '' END + CASE WHEN c.is_nullable = 1 THEN ' NULL' ELSE ' NOT NULL' END + CASE WHEN c.default_object_id != 0 THEN ' CONSTRAINT [' + OBJECT_NAME(c.default_object_id) + ']' + ' DEFAULT ' + OBJECT_DEFINITION(c.default_object_id) ELSE '' END + CASE WHEN cc.[object_id] IS NOT NULL THEN ' CONSTRAINT [' + cc.name + '] CHECK ' + cc.[definition] ELSE '' END + CASE WHEN c.is_identity = 1 THEN ' IDENTITY(' + CAST(IDENTITYPROPERTY(c.[object_id], 'SeedValue') AS VARCHAR(5)) + ',' + CAST(IDENTITYPROPERTY(c.[object_id], 'IncrementValue') AS VARCHAR(5)) + ')' ELSE '' END END FROM sys.columns c WITH(NOLOCK) JOIN sys.types tp WITH(NOLOCK) ON c.user_type_id = tp.user_type_id LEFT JOIN sys.check_constraints cc WITH(NOLOCK) ON c.[object_id] = cc.parent_object_id AND cc.parent_column_id = c.column_id WHERE c.[object_id] = @object_id ORDER BY c.column_id FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 7, ' ') + ISNULL((SELECT ' , CONSTRAINT [' + i.name + '] PRIMARY KEY ' + CASE WHEN i.index_id = 1 THEN 'CLUSTERED' ELSE 'NONCLUSTERED' END +' (' + ( SELECT STUFF(CAST(( SELECT ', [' + COL_NAME(ic.[object_id], ic.column_id) + ']' + CASE WHEN ic.is_descending_key = 1 THEN ' DESC' ELSE '' END FROM sys.index_columns ic WITH(NOLOCK) WHERE i.[object_id] = ic.[object_id] AND i.index_id = ic.index_id FOR XML PATH(N''), TYPE) AS NVARCHAR(MAX)), 1, 2, '')) + ')' FROM sys.indexes i WITH(NOLOCK) WHERE i.[object_id] = @object_id AND i.is_primary_key = 1), '') + CHAR(13) + ');'
  PRINT @SQL

DECLARE @TableName nvarchar(max) = 'GT_T001';
DECLARE @Sql NVARCHAR(max) = 'create table ##' + @TableName + ' (BUKRS nvarchar(4), ROWG uniqueidentifier DEFAULT NEWID()  )';
EXECUTE sp_executesql @Sql
 
insert into ##GT_T001 (BUKRS) select BUKRS from T001
 
select * from ##GT_T001