how many rows does the resultant of the relational algebra expressionIdesc,acqcost (acqcost<1000 (4)) have, given the table A below?idacqcostdateacq4998.002019-09-152019-09-1582943 Conference Table77463 Conference Chair 247.4599821 Conference Chair 247.4544320 Desk2019-09-152298.002017-11-0599873 Conference Chair 247.452019-09-15247.452019-09-15247.002020-06-23874.002018-03-081389.00 2019-12-184877.902017-12-012017-11-052020-02-10desc77472 Conference Chair88872 Speaker Phone33411 Monitor 55"98006 Printer88753 Copier72633 Chair99098 Conference ChairAnswer:642.00239.90

Question- Here it will display desc and acqcost from table A that have acqcost less than 1000. So…

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how many rows does the resultant of the relational algebra expression desc,acqcost (acqcost<1000 (4)) have, given the table A below?

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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How many rows does the resultant of the relational algebra expression acqcost>1500 (Tdesc,acqcost (A)) have, given the table A below? id 82943 Conference Table 77463 Conference Chair 99821 Desk 44320 Desk 99873 Conference Chair 77472 Conference Chair 88872 Speaker Phone 33411 Monitor 55" 98006 Printer 88753 Copier 72633 Chair 99098 Conference Chair desc acqcost 4998.00 247.45 1987.00 2019-09-15 1987.00 2017-11-05 247.45 2019-09-15 2019-09-15 247.45 247.00 2020-06-23 874.00 2018-03-08 1389.00 2019-12-18 4877.90 2017-12-01 642.00 2017-11-05 239.90 2020-02-10 dateacq 2019-09-15 2019-09-15
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