大數(shù)據(jù)就業(yè)實(shí)戰(zhàn)培訓(xùn) Oracle就業(yè)實(shí)戰(zhàn)培訓(xùn)
Oracle OCP 19c 認(rèn)證1Z0-082考試題庫(第23題)-CUUG內(nèi)部學(xué)員版082題庫解析
23、Which two statements are true regarding Oracle database space management within blocks managed by Automatic Segment Space Management (ASSM)? (Choose two.)
A. PCTFREE defaults to 10% for all blocks in all segments for all compression methods
B. ASSM assigns blocks to one of four fullness categories based on what percentage of the block is allocated for rows
C. Update operations always attempt to find blocks with free space appropriate to the length of the row being updated
D. Insert operations always attempt to find blocks with free space appropriate to the length of the row being inserted
E. A block will always be eligible for inserts if the row is short enough to fit into the block
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