Answer:
A key field is used to uniquely identify each record for retrieval or manipulation.
Explanation:
In a database there are many, having similar entities. So in order to differentiate each entity from other we need to set a key field among all the field which is always unique for each entity.
For example:
In a database of a company having data about its employees, the key field might be their ID. As some employees can have same names, addresses, phone numbers but cannot have the same ID.
<span>the answer is an operating system</span>
<span>The answer is Ten. Substituting numbers for letters, available selections are 111, 112, 113, 122, 123, 133, 222, 223, 233, 333. Note that, for example, 112, 121, and 211 are considered as the same selection.
</span>AAA, BBB, CCC, <span>AAB, AAC, </span><span>BBC, </span><span>ABB, ACC, </span><span>CCB & ABC.</span>
Answer:
click create new presentation -_- i use power poin all the time
Explanation:
im not dum
