12. What do you obtain when you apply the selection operator sC, where C is the

Question

12. What do you obtain when you apply the selection operator sC, where C is the condition (Project-2)A (Quantity 250), to the database in Table 10? TABLE 10 Parts inventory. 14 1092 1101 12 13. What do you obtain when you apply the projection P2,3,5 to the 5-tuple (a, b, c, d, e)? 14. How many components are there in the n-tuples in the table obtained by applying the join operator J3 to to tables with 5-tuples and 8-tuples, respectively? What are the operations that correspond to the query expressed using this SQL statement? SELECT Supplier FROM Part_needs WHERE 1000 Part number 5000 What is the output of this query given the database in Table 9 as input? a. b. TABLE 9 Part needs SupplierPart aumberPrject 1092 1101 31 31 32 32 9191 15 a. Represent each of these relations on (1,2,3.4) with a matrix iii. ( 1, 2 1, 3)(1 , 4), (2,1 ), (2, 3), (2, 4)(3,1 ), (3, 2), (3, 4). (4. 1 ), (4, 2), (4, 3)}

Explanation / Answer

Solution:

The first question is done as per Chegg guidelines, please repost others.

12)

The result obtain will be

Explanation:

For the condition Project = 2, two tuples from the Table 10 will be selected in which the quantities are 25 and 80 respectively but again with the condition (Quantity>=50), only one tuple will be left.

Port_number Project Quantity Color_code 9191 2 80 4

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