One school of thought that developers have about primary keys is to add an additional column to uniquely identify each record. Which is another school of thought? Primary keys should not be used at all.
A primary composite key should be used.
Find unique values already in the data.
A default identifier should be created.

What is the power dissipated by a resistor with a current of 0.02 a and a resistance of 1,000 ? a. 200 w b. 20 w c. 0.4 w d. 4 w

Effective character encoding requires standardized code. compatible browsers. common languages. identical operating systems.

Report all segments of identity by descent longer than 20 polymorphisms between pairs of individuals in the following cohort of 15 individuals across 49 polymorphisms: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 numeric input 2 points possible (graded) you have 2 attempts to complete the assignment below. for example if the sequence is "bcd", which occurs in "abcdef" , the starting point would be 2 (b), and the finishing point would be 4(d). individuals 7,10 between positions