1. F database system is database and applications
	2. F application programs are part of DBMS
	3. F end users dont know about the structure of the db
	4. F theres a bunch of free ones
	5. F the schema doesnt change much
	6. F they use external schema
	7. T
	8. T
	9. F Network model is an implementation model
	10. F relational model is also implementation model
	11. F only atomic values are allowed
	12. T have to store object ids
	13. T
	14. T
	15. F
	16. T
	17. F
	18. T
	19. T
	20. T cross product followed by select
	21. T ? The attributes must be the same tho
	22. T
	23. F
	24. T forall
	25. F QBE
	26. T I think so?
	27. T I think so?
	28. F sql is based on TRC
	29. T it is more expressive
	30. F no we need PL/SQL
	31. T ? Maybe? Sometimes its just an attribute?
	32. T I think he means one to one total participation
	33. F  he said once that binary convey different info
	34. T
	35. F
	36. F?
	37. F PL/SQL is an extension of SQL? He didn't really talk a ton about it...
	38. F its def less efficient cuz prepares
	39. T somewhere in his DBPL slides
	40. T
	41. A hierarchical can only do one to many
	42. D object
	43. C attributes are names for domains
	44. C
	45. B Codd did relational, bachman did network, gray did transactions and ellison did nothing useful for anyone ever
	46. D Ellison didn't get one cuz he did nothing useful for anyone ever
	47. C oracle cuz he <3 it and decides whats true
	48. C ER is just a model
	49. D key, entity, referential
	50. D
	51. C join is cross + select
	52. A theta is when columns are specified
	53. D outer join = full join
	54. A you have to use all the variables declared
	55. A maybe njoin? idk
	56. A I think algebra requires multiple? All of them? Idk
	57. C forall then exists
	58. D
	59. D weak entities need identifying relationships because they can't be identified otherwise
	60. B
	61. B
	62. B
	63. C security is the benefit
	64. D
	65. B
	66. A
	67. B
	68. A
	69. C
	70. D
	71. D since ql and dml are needed
	72. C
	73. C/D? Idk
	74. D?
	75. B? Idk he uses while loops...
	76. D
	77. B
	78. C
	79. A
	80. D
	81. C
	82. B
	83. C/D I think its D... Teacher might be in the candidate key set?
	84. A status not directly reliant on SIN
	85. C/D? Idk what he wants but I think its 4th normal
	86. C
	87. D
	88. C need one for student, course and takes relation
	89. B could do it in 2 because program is a weak entity set?
	90. D need another relation for phone number...
	91. A, B or C all work so who knows...
	92. B t2 and t3 were committed before the crash, after the checkpoint
	93. C t4 started before the checkpoint but didn't commit, it needs undoing
	94. A everything is oracle
	95. D idk, was never mentioned but mongodb was the latest to add it so probs just outdated...
	96. B
	97. A hes missing brackets but w/e
	98. A
	99. D
	100. D though A might work too