在 Informatica 中简单实现易失性/临时表的想法

Question

Mapping is: flat file is being loaded into a temp/volatile table, no permissions to create stored procs on a database .

I understand I can run a disconnected SQL Transformation, and just execute the "create table" from it. But since it's not a stored proc I do not see how I can run it preceding the file load (in the same mapping). Disk file is treated as a source, volatile table as a target.

Any ideas for a vanilla implementation of this, aside pre-SQL in the target object?

Answer 1

Personally I wouldn't use a temporary table at all. Save the data you need to an intermediate file in the first Target Load Path in your mapping. Then you can use this intermediate file in the second Target Load Path (and all following ones) within the same mapping with ease, be it as a source or as a LKP file. And at the end of the session you simply delete the file in a post-session success command.