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But, at the same time they were going to be under management of manager id # 205.Here is a simple update: And, of course remember to commit. ), how I might cluster rows together that are subject to updates, and what I might do if I just get too many updates to handle. The fastest way to update every row in the table is to rebuild the table from scratch. Case 2 is common in Data Warehouses and overnight batch jobs. I worry about how ETL tools apply updates (did you know Data Stage applys updates singly, but batches inserts in arrays? The two most common forms of Bulk Updates are: Case 1 is uninteresting.I understand that approach I want to use not so trivial and this statement was designed for other purposes...May be someone could help me with this problem: How to get an ID value after the insert to view. Evgeny Disclaimer: Blog contents express the viewpoints of their independent authors and are not reviewed for correctness or accuracy by Toolbox for IT.

The interesting thing about this method is that it performs a context-switch between PL/SQL and SQL for every FETCH; this is less efficient.Example being 8000 - Hello, sorry for my English, I have problems with this statement.I've created views with "INSTEAD OF" triggers as described here: all I faced problem, that I can't obtain the ID after the insert operation. I spend an inordinate proportion of design time of an ETL system worrying about the relative proportion of rows inserted vs updated.I want to test on a level playing field and remove special factors that unfairly favour one method, so there are some rules: TEST (Update Source) - 100K rows TEST (Update target) - 10M rows Name Type Name Type ------------------------------ ------------ ------------------------------ ------------ PK NUMBER PK NUMBER FK NUMBER FK NUMBER FILL VARCHAR2(40) FILL VARCHAR2(40) Not many people code this way, but there are some Pro*C programmers out there who are used to Explicit Cursor Loops (OPEN, FETCH and CLOSE commands) and translate these techniques directly to PL/SQL. I'm trying to do something similar with bound variables and not having much luck. H5=:h5 WHEN NOT MATCHED THEN INSERT (h.h3, h.h4, h.h5) VALUES (:h3,:h4,:h5); Thoughts?