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anti-join

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Using information from one table to find if the info exists in another table
I have 2 tables: ads : +------+---------------+ |ID|Name| +------+---------------+ 1|Item 1| 2|Item 2| 3|Item 3|
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Oracle Anti-Join Execution plan question
We have two tables like so: Event id type ... a bunch of other columns ProcessedEvent event_id process There are indexes defined for
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