A（）is a named momory block . By using its name, we can refer to the data stored in the memory block.
A: word
B: record
C: program
D: variable
A: word
B: record
C: program
D: variable
D
举一反三
- manual block A: block controlled manually by a person known as a block operator. B: a fixed signal that lets engineers know if a train can enter a block.
- If you make a change to the information recorded in a particular block, what will happen? ( ) A: You will rewrite it. B: The change will be stored in a new block. C: A database will be updated. D: The administrator can change the database.
- 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
- The processor manipulates data stored in main memory under the control of a (71) stored in main memory. A: command B: program C: operation D: code
内容
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'Block someone' means '拉黑' in Chinese when we are using WeChat.
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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
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a fixed signal that lets engineers know if a train can enter a block. A: ABS (automatic block system) B: lock C: lock signal
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It is a good way to record personal health information in a public block chain in order to share our health data with different doctors.
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We can input data by a ( ). A: printer B: keyboard C: disk D: memory