Features/Commands comparison between Oracle and PostgreSQL
Oracle Postgres
init.ora postgres.conf
SGA shared_buffers
PGA work_mem
Online Redo log WAL (Write Ahead Log)
Undo MVCC
Row-chaining TOAST
Table/Index Relation
Row Tuple
Column Attribute
Data Block Page (on the disk)
Page Buffer (in memory)
Autocommit Off Autocommit On
shutdown abort stop immediate
shut immediate stop fast
shutdown normal stop smart
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