Chapter 7, Problem 21PS

Code must follow Pep8 guidelines

Code must follow Pep8 guidelines

Q1/ The transistor in the circat below is specified to have ẞ in the rang 50 to 150 Find the Value of RB that results in Saturation with an overdrive factor of at Least 10 3 lov 1 кл 5V RB

Create a class named StudentRecords and add a static variable named records, which is a list shared among all objects of the class. Then add a method named add_record that takes a student's name as input and appends it to the shared records list.

Subject: Database management system Explain in easy way with write  handwritten note   Test if the following schedule is conflict serializable or not and explain R1 (A), R2 (D), W1 (B), R2 (B), W3 (B), R4 (B), W2 (C), R5 (C), W4 (E), R5 (E), W5 (B).

Subject: Database management system Explain in easy way with write  handwritten note   Test if the following schedule is conflict serializable or not and explain R1 (A), R2 (D), W1 (B), R2 (B), W3 (B), R4 (B), W2 (C), R5 (C), W4 (E), R5 (E), W5 (B).

Subject: Database management system Explain in easy way with write  handwritten note a. What is lossy decomposition? Check whether the following decompositions are lossy or lossless. (i) Let R=ABCD, R1 = AD, R2 = AB, R3 = BE, R4 = CDE, R5 = AE, F={ A->C, B- >C, C->D, DE->C, CE->A} (ii) R (XYZWQ), FD= {X->Z, Y->Z, Z->W, WQ->Z, ZQ-> X, R1 (XW), R2 (XY), R3 (YQ) , R4 (ZWQ), R5 (XQ) b. Eliminate redundant FDs from (i) F={X->Y, Y->X, Y->Z, Z->Y, X->Z, Z->X} (ii) F = {X->YZ, ZW->P, P->Z, W->XPQ, XYQ, YW, WQ ->YZ}

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