Introduction to Database Systems Queries in SQL The select ...
Introduction to Database Systems Queries in SQL The select ...
Introduction to Database Systems Queries in SQL The select ...
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Exercise 11 (Solution 2)<br />
Can one express set difference by way of nest<strong>in</strong>g?<br />
<strong>select</strong> name from employee<br />
except<br />
<strong>select</strong> lastName as name from employee<br />
<strong>select</strong> name<br />
from employee e<br />
where not exists (<strong>select</strong> *<br />
from employee<br />
where lastName = e.name)<br />
99<br />
Exercise 12: Nest<strong>in</strong>g and Functions<br />
“<strong>The</strong> person (or the persons) that have the highest <strong>in</strong>come”<br />
100
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