【多选题】
A A lost SPFILE can be recovered from memory using SQL*PLUS.
B A lost password file can be re-created with SQL*PLUS.
C A lost password file can be manually re-created with the orapwd utility
D A lost index tablespace can be re-created without performing any recovery
E A lost TEMPFILE must always be re-created manually.
F A lost PFILE can be re-created from alert log using SQL*PLUS
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