我使用這個查詢,但它不能在MySQL中如何從第n行到第n行從mysql db獲取數據?
SELECT TOP 1 * FROM (SELECT TOP 5 * FROM ads ORDER BY id DESC) ads ORDER BY id DESC
我使用這個查詢,但它不能在MySQL中如何從第n行到第n行從mysql db獲取數據?
SELECT TOP 1 * FROM (SELECT TOP 5 * FROM ads ORDER BY id DESC) ads ORDER BY id DESC
「頂部」在MySQL不起作用工作。您可以通過以下方式來完成這項工作
SELECT * FROM (SELECT * FROM ads ORDER BY id DESC LIMIT 5) ads ORDER BY id DESC LIMIT 5
您可以使用ORDER BY ... LIMIT {[offset,] row_count | row_count OFFSET offset}
編輯查詢(可以說你想獲得5個記錄從10日 - 10,11,12,13,14):
SELECT * FROM ads
ORDER BY id DESC
LIMIT 10,5
雖然我假設你不想讓他們通過id
排序而是由views
或者ORDER BY views DESC
將採取類似的地方標準(不要忘了對views
數增加索引)。
'SELECT * FROM ads ORDER BY id DESC LIMIT 5'或'SELECT * FROM ads ORDER BY id DESC LIMIT startlimit,endlimit' –
從第n行到第n行? –