99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

多項選擇題

Evaluate the following command and its output:  
SQL>SELECT * FROM dba_temp_free_space; 
TABLESPACE_NAME TABLESPACE_SIZE ALLOCATED_SPACE FREE_SPACE 
LMTEMP 250609664 101048576 149561088
Which two statements correctly interpret the output?()  

A. FREE_SPACE indicates only the space that is currently unallocated.
B. ALLOCATED_SPACE indicates only the space currently allocated and in use.
C. FREE_SPACE indicates only the space that is currently allocated and available for reuse.
D. ALLOCATED_SPACE indicates both the space currently allocated and used,and the space that is available for reuse.
E. FREE_SPACE indicates both the space that is currently allocated and available for reuse,and the space that is currently unallocated.

微信掃碼免費搜題