SQL Server收缩temp db mdf和ndf

Question

所以我的问题是，即使作业运行后，我仍将mdf（主tempdb文件）压缩到大约10mb左右，为什么不这样做呢？ 我曾尝试过最繁重的ETL任务（从各种来源提取数据并准备报告所需的数据）之后再执行此任务。此特定服务器不用于报告proc。我只是好奇为什么没有发生收缩？我应该对Temp db进行完整备份吗？然后删除备份？ 我从以前的帖子和帖子中进行研究并构建的Sql工作。 SQL服务器作业

dbcc shrinkdatabase (tempdb, 97)

-- Clean all buffers and caches
DBCC DROPCLEANBUFFERS; 
DBCC FREEPROCCACHE;
DBCC FREESYSTEMCACHE('ALL');
DBCC FREESESSIONCACHE;


DBCC SHRINKFILE (temp2,TRUNCATEONLY);
DBCC SHRINKFILE (temp3,TRUNCATEONLY);
DBCC SHRINKFILE (temp4,TRUNCATEONLY);
DBCC SHRINKFILE (temp5,TRUNCATEONLY);
DBCC SHRINKFILE (temp6,TRUNCATEONLY);
DBCC SHRINKFILE (temp7,TRUNCATEONLY);
DBCC SHRINKFILE (temp8,TRUNCATEONLY);
DBCC SHRINKFILE (templog,TRUNCATEONLY);
DBCC SHRINKFILE (tempdev,TRUNCATEONLY);



DBCC SHRINKFILE (temp2,10);
DBCC SHRINKFILE (temp3,10);
DBCC SHRINKFILE (temp4,10);
DBCC SHRINKFILE (temp5,10);
DBCC SHRINKFILE (temp6,10);
DBCC SHRINKFILE (temp7,10);
DBCC SHRINKFILE (temp8,10);
DBCC SHRINKFILE (templog,10);
DBCC SHRINKFILE (tempdev,10);
dbcc shrinkdatabase (tempdb, 10);

ALTER DATABASE tempdb MODIFY FILE (NAME = 'templog', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'tempdev', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp2', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp3', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp4', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp5', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp6', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp7', SIZE = 10);
ALTER DATABASE tempdb MODIFY FILE (NAME = 'temp8', SIZE = 10);

Answer 1

验证执行JOB之后是否没有执行其他事务。减少TEMPDB后，显然正在执行其他事务。