SQL Top and Limit
TOP and LIMIT statements determine the amount of records in the result. For example, you want to limit the result with 7 records. In MS SQL and PostgreSQL, use the LIMIT keyword at the end of the query:
1234--Find top-3 the eldest songs SELECT title, year FROM songs ORDER BY year LIMIT 3
In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.
During this course we will use the LIMIT statement.
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Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.
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TOP and LIMIT statements determine the amount of records in the result. For example, you want to limit the result with 7 records. In MS SQL and PostgreSQL, use the LIMIT keyword at the end of the query:
1234--Find top-3 the eldest songs SELECT title, year FROM songs ORDER BY year LIMIT 3
In MySQL syntax, use TOP keyword with select to limit the number of output rows. You can also set a percentage: SELECT TOP 50 PERCENT.
During this course we will use the LIMIT statement.
Swipe to start coding
Find 5 first albums and their singers, which are sorted by naming, and return the result. Choose only albums from the 1970s.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
Awesome!
Completion rate improved to 4.17single
