Understanding Oracle Row Chaining and Row Migration for Optimal Database Maintenance!

Опубликовано: 26 Январь 2024
на канале: Anish kumar

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Row Chaining:
A chained row is a row that is too large to fit into a single database data block.

Row Migration
Row migration refers to rows that were moved to another block due to an update making them too large to fit into their original blocks. Oracle will leave a forwarding pointer in the original block so indexes will still be able to find the row.

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