Let T(a,b,c) be a relation in which attribute a is not NULL. Consider the SQL query: SELECT * FROM T Tcopy WHERE a NOT IN (SELECT a FROM T WHERE Tcopy.a>10 ); Which of the following RA queries produces the same result as the SQL query above? Select one: O Ja>10(Ta.b.c (T)) O Ja<=10 (T) OT- Ga<=10 (T) O Tabc(Oa>10 (T))

Let T(a,b,c) be a relation in which attribute a is not NULL. Consider the SQL query: SELECT * FROM T Tcopy WHERE a NOT IN (SELECT a FROM T WHERE Tcopy.a>10 ); Which of the following RA queries produces the same result as the SQL query above? Select one: O Ja>10(Ta.b.c (T)) O Ja<=10 (T) OT- Ga<=10 (T) O Tabc(Oa>10 (T))

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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