Consider the following relational schema:   s (i, w, x) t (k,I, w)   and the following tuples:   s = {(1,5,3), (2,8,2)} t= {(1,1,7), (9, null, 2), (5,0,5), (2,2,7)}   complete the SQL expression to yield the result below: SQL Expression

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
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Consider the following relational schema:

 

s (i, w, x)

t (k,I, w)

 

and the following tuples:

 

s = {(1,5,3), (2,8,2)}

t= {(1,1,7), (9, null, 2), (5,0,5), (2,2,7)}

 

complete the SQL expression to yield the result below:

SQL Expression

 

 

SELECT     ..........................

t.w FROM

                WHERE t.i ..........................

 

         (1,2,7,9);

 

 

RESULT

t.w

7

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