rhucke6207 rhucke6207
  • 17-01-2024
  • Mathematics
contestada

Which of the following is not a valid unary operation in relational algebra?
1) Projection
2) Selection
3) Join
4) Division

Respuesta :

Otras preguntas

Which characteristics do cell membranes and cell walls have in common?
Tameron is driving 540 miles to college. If he drives at an average rate of 45 miles per hour, how many hours will it take him to get 3/4 of the way there?
An isosceles triangle has a perimeter of 8.5 cm. A second isosceles triangle, whose base is equal to that of the first but whose legs are twice as long of the f
what are particles of carbon that enter the air when wood or coal are burned?
Piaget's principle of conservation concerns the observed properties of substances. Psychologists apply this principle when they study _____ development in child
Evaluate the expression when x = –12. 3x – 17 a. –53 b. –19 c. 19 d. 53
6 [ 4 × ( 72 - 63 ) ÷ 3 ]
If a robin builds a nest in a big tree, the robin benefits and the tree is not helped or harmed. This type of symbiotic relationship is called commensalism, and
3a b2 b3 4b2 4 5a identify like terms
how can i show my work for 2x-4= -10+x
ACCESS MORE