Answer:
b. data entry slows as every INSERT , UPDATE, or DELETE statement must also update every index.
Explanation:
This process help to improve the speed of get data , it takes each element in the indexed column and save the location to get faster the data. But if you index every attribute in a table it going to take a lot of time locating each column in the respective index in each query(update, delete and insert). For that reason is necesary be carefull with this process and only put index in the relevant columns
Answer:
Travelling in time might sound like a flight of fancy, but some physicists think it might really be possible. BBC Horizon looked at some of the most promising ideas for turning this staple of science fiction into reality.
Explanation:
Answer:
The detail answer to this question is given in the explanation section.
The correct answer is .info
Explanation:
Let look as each statement
p.info.important
this is a specific because it says
go to important property which is inside info property which is inside P
.info is less specific
because it will go to .info No function is given whose property is this.
p.info
This is some what specific. As it says select .info property which is inside p
A <u>schema </u>describes the structure, content, and access controls of a physical data store or database.
<h3>What is the kind of database that stores data in a different physical location?</h3>
Distributed databases are that are distributed across several physical locations. In distributed databases, the data are placed where they are used most often, but the whole database is available to each licensed user.
<h3>What is the structure of database management system?</h3>
The database system is separated into three components: Query Processor, Storage Manager, and Disk Storage.
To learn more about Distributed databases, refer
brainly.com/question/28236247
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Complete Question is ,
a. relation
b. DBMS
c. schema
d. attribute
