卜居易,刘羚羊,与文强有染的女星
1、.Which two are true about the Archive (ARCn) processes?
❑ A) They automatically delete obsolete archive logs to make
space for new archive logs.
❑ B) They are used during Instance recovery.
❑ C) They archive redo directly from the redo log buffer.
❑ D) They are enabled only when the database Is In ARCHTVELOC
mode.
❑ E) They create archivelogs after every log switch.
• Answer:DE
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Oracle字符串函数length、upper、lower、initcap、 concat、instr、replace
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