To enforce referential integrity, the database can return an error instead of doing the requested action or do the requested action and do the related changes to the related tables
Thus the answer is either a or b.
Explanation:
When the given data base in a table is valid and if it is consistent then it is called as referential integrity and it also refers to the consistency within the relationship. This type of database is much important because it will keep us introducing to the errors in the databases and it also checks if the reference from one table is equal to the other table.
The main function is to prevent the users from entering the wrong and inconsistent data. So in referential integrity the database will return the error instead of doing the required action or it can do the related changes to the related tables.
In his lectures on experimental calorimetry from 1819 to 1824, Nicolas Clément was the first to use the word "calorie" to describe a unit of heat energy. The "big" calorie was this one. Between 1841 and 1867, the word (with a lowercase "c") was included in the French and English dictionaries. Its origins are in Latin and mean "hot."
Calories are a measure of energy.
[1][2] Two primary meanings of "calorie" are frequently used due to historical factors. The amount of heat required to increase the temperature of one kilogramme of water by one degree Celsius was the original definition of the big calorie, food calorie, or kilogramme calorie (or one kelvin). The amount of heat required to produce the same rise in one gramme of water was known as the tiny calorie or gramme calorie. As a result, 1000 little calories are equal to 1 large calorie.
The term "calorie" and the symbol "cal" usually generally refer to the big unit in nutrition and food research. The energy value of foods is often expressed in publications and on food packaging as well as recommended dietary caloric intake, metabolic rates, etc. To prevent misunderstanding, some publications advise using the capital C-spelled terms Calorie and Cal, respectively;[8] however, this norm is frequently disregarded.
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The answer is
B. Subculture
Answer: "TRUE" .
____________________________________
Answer:
yess
Explanation:
China has extensive deposits of coal, oil and natural gas. Besides these fossil fuels, China is a top producer of aluminum, magnesium, antimony, salt, talc, barite, cement, coal, fluorspar, gold, graphite, iron, steel, lead, mercury, molybdenum, phosphate rock, rare earths, tin, tungsten, bismuth and zinc.
