May 2020
Beginner
564 pages
14h 9m
English
Content preview from Learn SQL Database Programming
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Using a correlated subquery in the SELECT clause
You can execute the following query using a correlated subquery in the SELECT clause:
USE lahmansbaseballdb; SELECT f.playerid, f.yearid, f.teamid, pos, (SELECT salary FROM salaries s WHERE (f.playerid = s.playerid AND f.teamid = s.teamid AND f.yearid = s.yearid)) AS salaryFROM fielding fORDER BY f.playerid;
The previous query returns the same results as the previous query in this section did, as shown in the following screenshot:
The previous query will return the playerid, yearid, teamid, pos, and salary columns. salary is obtained by querying the salaries table and joining it to the ...
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