To simplify this, I am running a query that returns one record with two columns. The first column has the code and the second has a single string with multiple values delimited by commas. I would like the query to return one record for every comma delimited value in the second column.
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Why doesn't the Oracle optimizer use my index?
Querying too much data
Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table.
So, the obvious side…
I remember the day when someone asked me to create a user for an application developement. The user should be able to create views and materialized views and, so, I used the following syntax:
This way, I guessed, I would ensure that use…