WITH sequences AS(SELECT [0, 1, 1, 2, 3, 5] AS some_numbersUNION ALL SELECT [2, 4, 8, 16, 32] AS some_numbersUNION ALL SELECT [5, 10] AS some_numbers)
SELECT some_numbers,some_numbers[OFFSET(1)] AS offset_1,some_numbers[ORDINAL(1)] AS ordinal_1
FROM sequences;
some_numbersoffset_1ordinal_1
[0, 1, 1, 2, 3, 5]
1
0
[2, 4, 8, 16, 32]
4
2
[5, 10]
10
5
查找長度
WITH sequences AS(SELECT [0, 1, 1, 2, 3, 5] AS some_numbersUNION ALL SELECT [2, 4, 8, 16, 32] AS some_numbersUNION ALL SELECT [5, 10] AS some_numbers)
SELECT some_numbers,ARRAY_LENGTH(some_numbers) AS len
FROM sequences;
some_numberslen
[0, 1, 1, 2, 3, 5]
6
[2, 4, 8, 16, 32]
5
[5, 10]
2
展平數(shù)組
SELECT *
FROM UNNEST(['foo', 'bar', 'baz', 'qux', 'corge', 'garply', 'waldo', 'fred'])AS element
WITH OFFSET AS offset
ORDER BY offset;
