Query a count of the number of cities in CITY having a Population larger than 100,000.
Input Format
The CITY table is described as follows:
Solution
SELECT COUNT(NAME)
FROM CITY
WHERE POPULATION>100000
SELECT is the SQL keyword that lets the database know that you want to retrieve data.
COUNT() function is used to returns the count of an expression. It allows us to count all rows or only some rows of the table that matches a specified condition. It is a type of aggregate function whose return type is BIGINT. This function returns 0 if it does not find any matching rows.
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