SQL Select Column
You can retrieve not all the data, but only some columns. For this, you should specify column name, for example, singer or title.
This query returns all the data containing in the title column:
1SELECT title FROM songs
You can also choose two or more columns:
1SELECT title, singer FROM songs
Now you selected all records from the table, but only title and singer columns.
Swipe to start coding
Select info about album and year for all records from songs.
Lösning
Tack för dina kommentarer!
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Completion rate improved to 4.17SQL Select Column
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You can retrieve not all the data, but only some columns. For this, you should specify column name, for example, singer or title.
This query returns all the data containing in the title column:
1SELECT title FROM songs
You can also choose two or more columns:
1SELECT title, singer FROM songs
Now you selected all records from the table, but only title and singer columns.
Swipe to start coding
Select info about album and year for all records from songs.
Lösning
Byt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedanTack för dina kommentarer!
Awesome!
Completion rate improved to 4.17single
