Answer:
your welcome, I tried lol
The route that deGama found was insanely long with the ships having to sail around Africa then turn the course and reach ASIA.moreover the sea route was very dangerous, the waters south of Africa were turbulent almost through the world.
so the Europeans were set on a new quest to find an alternate route.
HOPE IT HELPS YOU
The answer is Count. Count is an aggregate method in SQL that returns the number of rows for a specified column that have non-null values.
<h3>What is the Meaning of Null?</h3>
When a field in a database has no values at all, this is known as null and indicates that the field’s value is unknown.
A null value for a number field, text field, or space value is different from a zero value. Null indicates that no value has been recorded in a database field.
A value and a null cannot be compared. The Structured Query Language query cannot be written as SELECT * FROM Customer where email Address=null, for instance, if it is intended to obtain all customers without email addresses from a Customer Addresses table.
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The correct answer: is by their own soldiers!
Hope This Help! ^_^
