Answer:
The correct answer is Option A (Referential integrity)
Explanation:
When a relational database table is in first normal form, that means it has no repeating fields or groups of fields, and hence all rows have the same columns, while if a relational database table is in second normal form, it implies that every non-key field is functionally dependent on the primary key. If can be in the third normal form if no non-key field is functionally dependent on any other non-key field.
A relational database on its own is a universal approved database model whose data is stored in tables divided into records and fields that serve as an information unit that organizes data points for easy access.
In the relational database, foreign keys are being checked to reference the primary key and enforce referential integrity so as to ensure that the foreign key must have a matching primary key. It means the reference from a row in one table to another table must be valid. Referential integrity concerns the concept of a foreign key normally enforced by the database management system.
Answer:
Explanation:
A general idea is that you should repeat the simulation until the results converge. An easy but illustrative example of this is that we want to see if the R function rbinom is accurate in simulating a coin toss with a given probability. We will simulate one coin toss 10000 times, and plot the percentage of heads against the number of coin tosses:
set.seed(1)
n <- 10000
result <- NULL
percent <- NULL
for (i in 1:n) {
result[i] <- rbinom(1,1,0.5)
percent[i] <- sum(result)/i
}
plot(seq(1:10000),percent, type="l")
abline(0.5, 0, lty=2)
HTML Web viewer is the only one that could that
Answer:
Option 1 i.e., Substitute products or services.
Explanation:
The printed encyclopedia industrial sector lost to the economic power of replacing goods or services.
In the industrial countries, the current economic situation is not feasible in terms of its consumption of products as per capita. The ' service economy ' applies not only for the tertiary sector but for an economy in which businesses generate the balance of income, and most workers are also in service operations.
Answer:
Explanation:
Bit: A bit (short for binary digit) is the smallest unit of data in a computer. A bit has a single binary value, either 0 or 1.
Byte: A byte is a data measurement unit that contains eight bits, or a series of eight zeros and ones.
Kilobyte: A KB (kilobyte) is 1000 bytes.
Megatype: An MB (megabyte) is 1000 kilobytes.
Gigatype: A GB (gigabyte) is 1000 megabytes.
Terabyte: A TB (terabyte) is 1000 gigabytes.
hope this helped you!
