Which of these is not an element of MySQL? *
Datatype
Literal
NULLs
Keywords
Answers
Answer:
NULLs
Explanation:
To sort in reverse order, add the DESC(descending) keyword to the name of the column in the ORDER BY clause that you are sorting by. The default is ascending order; this can be specified explicitly using the ASCkeyword.
If ORDER BY occurs within a parenthesized query expression and also is applied in the outer query, the results are undefined and may change in a future MySQL version.
Use of column positions is deprecated because the syntax has been removed from the SQL standard.
Prior to MySQL 8.0.13, MySQL supported a nonstandard syntax extension that permitted explicit ASC or DESC designators for GROUP BYcolumns. MySQL 8.0.12 and later supportsORDER BY with grouping functions so that use of this extension is no longer necessary. (Bug #86312, Bug #26073525) This also means you can sort on an arbitrary column or columns when using GROUP BY, like this: