How to retrieve field names from temporary table (SQL Server 2008)

Question

I'm using SQL Server 2008. Say I create a temporary table like this one:

create table #MyTempTable (col1 int,col2 varchar(10))

How can I retrieve the list of fields dynamically? I would like to see something like this:

Fields:
col1
col2

I was thinking of querying sys.columns but it doesn't seem to store any info about temporary tables. Any ideas?

Answer 1

select * from tempdb.sys.columns where object_id =
object_id('tempdb..#mytemptable');

Answer 2

select * 
from tempdb.INFORMATION_SCHEMA.COLUMNS
where table_name like '#MyTempTable%'

Answer 3

The temporary tables are defined in "tempdb", and the table names are "mangled".

This query should do the trick:

select c.*
from tempdb.sys.columns c
inner join tempdb.sys.tables t ON c.object_id = t.object_id
where t.name like '#MyTempTable%'

Marc

Answer 4

To use information_schema and not collide with other sessions:

select * 
from tempdb.INFORMATION_SCHEMA.COLUMNS
where table_name =
    object_name(
        object_id('tempdb..#test'),
        (select database_id from sys.databases where name = 'tempdb'))

Answer 5

you can do it by following way too ..

create table #test (a int, b char(1))

select * From #test

exec tempdb..sp_columns '#test'

Answer 6

Anthony

try the below one. it will give ur expected output

select c.name as Fields from 
tempdb.sys.columns c
    inner join tempdb.sys.tables t
 ON c.object_id = t.object_id
where t.name like '#MyTempTable%'

Answer 7

select * 
from tempdb.INFORMATION_SCHEMA.COLUMNS 
where TABLE_NAME=OBJECT_NAME(OBJECT_ID('#table'))