sql server - SSIS Package Store vs. MSDB -

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when setting sql agent job, there options choosing, among others, "sql server" or "ssis package store". if choose "ssis package store" , browse msdb instead of file system, can choose ssis packages stored in sysssispackages.

however, documentation /dts switch, ssms automatically chooses when selecting ssis package store, appears packages stored on file system.

i've noticed if user executing job doesn't have file system rights, job fail when choosing ssis package store --> msdb --> package "access denied" error or "~object doesn't exist". since package doesn't exist on file system though, why execution work when choosing sql server , fail when using ssis package store? dtexec looking dtsx file on file system when msdb chosen? have, false, understanding sql server , ssis package store --> msdb same thing when referencing server on agent running.

i've done research , can't find clear distinction of differences, if any, between using sql server , ssis package store when selecting msdb folder.

can shed light on differences?

there 2 locations store ssis packages: file system or sql server. rest semantics.

file system

you can use ssis package store nothing known location in installation location. 

%program files%\microsoft sql server\{version}\dts\packages

or can pick anywhere on file system like. if go route, you'll need ensure sql agent account, or credentialed proxies or, if running packages xp_cmdshell sql server service account has access location.

the advantage, if want call that, of using package store (i.e. folder mentioned) can use integration services management tool exists in ssms (by connecting integration services instead of database engine).

enter image description here

however has lot of pitfalls such not being able handle multiple instances, packages run in 64 bit mode, no access proxy accounts, etc. shouldn't run packages ssms anyway.

sql server

if memory serves correct

  • 2005 - stored in msdb.dbo.sysdtspackages90
  • 2008 - stored in msdb.dbo.sysssispackages (i seem recall 2008 rtm using different table, or reused 90 table got patched out)
  • 2008 r2 - stored in msdb.dbo.sysssispackages
  • 2012 (package deployment model) - stored in msdb.dbo.sysssispackages
  • 2012 (project deployment model) - stored in ssisdb.catalog.packages*
  • 2014 (package deployment model) - stored in msdb.dbo.sysssispackages
  • 2014 (project deployment model) - stored in ssisdb.catalog.packages*

*with project deployment model, packages "compiled" (zipped manifest) .ispac stored bowels of ssisdb.internals.* tables.

wrapup

ultimately, store packages not affect ability run them. can run packages using dtexec, sql agent or custom .net code. choice of storing packages dependent upon management style.

references


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