- the
result of a
subquery:
SELECT isbn, title,
price FROM Book
WHERE price < (SELECT AVG(price) FROM Book)
ORDER BY title; A
subquery can use
values from...
- In a SQL
database query, a
correlated subquery (also
known as a
synchronized subquery) is a
subquery (a
query nested inside another query) that uses values...
- fact) AS (
SELECT 0, 1 --
Initial Subquery UNION ALL
SELECT n+1, (n+1)*fact FROM temp
WHERE n < 9 --
Recursive Subquery )
SELECT * FROM temp; An alternative...
- it is
known as a
correlated subquery.
Since 1999 the SQL
standard allows WITH
clauses for
subqueries, i.e.
named subqueries,
usually called common table...
-
transform a
subquery into a
collection expression:
SELECT expression1, expression2... FROM table_name... is a
general select that can be used as
subquery expression...
- data from
another table to be used in the operation,
without needing a
subquery:
DELETE accepts joined tables in the FROM clause,
similarly to SELECT....
- meaningless; the SQL
standard (SQL:2003) does not
allow an
ORDER BY
clause in the
subquery of a
CREATE VIEW command, just as it is
refused in a
CREATE TABLE statement...
- rows from mytable:
DELETE FROM mytable;
Delete rows from
mytable using a
subquery in the
where condition:
DELETE FROM
mytable WHERE id IN (
SELECT id FROM...
- uses the SQL
standard keyword EXISTS to
determine whether rows
exist in a
subquery result. To
SELECT one row of data from a
table called tab with a primary...
-
simulate pivot functionality using embedded functions,
dynamic SQL or
subqueries. The
issue with
pivoting in such
cases is
usually that the
number of output...
