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Flashcard 6442825420044

Tags

#databases #postgresql #sql

Question

NULLS [FIRST/LAST] is the default for ASCENDING order in Postgres. What does it say about NULL value; is it larger or smaller than any other value?

Answer

NULLS LAST is the default for ASCENDING order in Postgres, because NULLs are larger than any other values.

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

Flashcard 6442827255052

Tags

#databases #sql #sqlite

Question

NULLS [FIRST/LAST] is the default for ASCENDING order in SQLite. What does it say about NULL value; is it larger or smaller than any other value?

Answer

NULLS FIRST is the default for ASCENDING order in SQLite, because NULLs are smaller than any other values.

status	not learned	measured difficulty	37% [default]	last interval [days]
repetition number in this series	0	memorised on		scheduled repetition
scheduled repetition interval		last repetition or drill

Edited, memorised or added to reading queue

on 23-May-2021 (Sun)

Flashcard 6442825420044

Flashcard 6442827255052