[英]How to retrieve field names from temporary table (SQL Server 2008)
I'm using SQL Server 2008. Say I create a temporary table like this one: 我正在使用SQL Server 2008.假设我创建了一个像这样的临时表:
create table #MyTempTable (col1 int,col2 varchar(10))
How can I retrieve the list of fields dynamically? 如何动态检索字段列表? I would like to see something like this:
我想看到这样的事情:
Fields:
col1
col2
I was thinking of querying sys.columns but it doesn't seem to store any info about temporary tables. 我在考虑查询sys.columns但它似乎没有存储任何关于临时表的信息。 Any ideas?
有任何想法吗?
select * from tempdb.sys.columns where object_id =
object_id('tempdb..#mytemptable');
select *
from tempdb.INFORMATION_SCHEMA.COLUMNS
where table_name like '#MyTempTable%'
To use information_schema and not collide with other sessions: 要使用information_schema而不与其他会话冲突:
select *
from tempdb.INFORMATION_SCHEMA.COLUMNS
where table_name =
object_name(
object_id('tempdb..#test'),
(select database_id from sys.databases where name = 'tempdb'))
The temporary tables are defined in "tempdb", and the table names are "mangled". 临时表在“tempdb”中定义,表名称为“mangled”。
This query should do the trick: 这个查询应该做的伎俩:
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 渣
you can do it by following way too .. 你也可以通过以下方式来做到这一点。
create table #test (a int, b char(1))
select * From #test
exec tempdb..sp_columns '#test'
Anthony 安东尼
try the below one. 试试下面的一个。 it will give ur expected output
它会给你预期的输出
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%'
select *
from tempdb.INFORMATION_SCHEMA.COLUMNS
where TABLE_NAME=OBJECT_NAME(OBJECT_ID('#table'))
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