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PL/SQL Automatic BULK

PL/SQL Automatic BULK

2005-03-17       - By Christian Antognini

Reply:     1     2     3     4     5     6  

Hi Bruce

>Saw this mentioned at OOW, anybody seen it work?

If you enable SQL trace you will "see" it.

>The jist is that the new optimizing compiler will
>take a static sql cursor for loop and 'bulkify' it.

It's a prefetching. Basically instead of fetching one single row at a =
time, now 100 rows are prefetched.

>What limits are in the optimizer bulkification process

The prefetching feature is only enabled for queries, i.e. there's no =
automatic FORALL...

>Can you tell if bulkification is performed without running the p/sql.

If PLSQL_OPTIMIZE_LEVEL is set to 2 the feature is activated.



HTH
Chris
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