下面关于数据块(data block)的说法错误的是()?
A: data block是Oracle存储数据的最小单位
B: 不可以在同一个数据库中指定多个不同的data block大小
C: db_block_size参数控制默认的data block大小
D: 数据存储在data block中
A: data block是Oracle存储数据的最小单位
B: 不可以在同一个数据库中指定多个不同的data block大小
C: db_block_size参数控制默认的data block大小
D: 数据存储在data block中
举一反三
- 数据库中标准的数据块(data block)容量是由初始化参数()指定的。 A: 文件大小 B: 文件长度 C: 文件类型 D: DB_BLOCK_SIZE
- Identify two situations in which the block header grows in a data block. () A: when row directories need more row entries B: when there is row migration in the data block C: when there is an increase in the PCTFREE value for the data block D: when more transaction slots are required than are initially configured
- Identify two situations in which the block header grows in a data block. () A: Awhen row directories need more row entries B: Bwhen there is row migration in the data block C: Cwhen there is an increase in the PCTFREE value for the data block D: Dwhen more transaction slots are required than are initially configured
- HDFS上默认的一个数据块(Block)大小是______ M。
- HDFS将每个文件存储成一系列数据块(Block),默认块大小为