直接在Sql語句中使用LIMIT無效,需要把LIMIT查詢到的結果作爲一個結果集供AVG函數統計平均值才能生效,具體如下代碼:
SELECT AVG(A.Score) AS avg_score
FROM(
SELECT Score FROM `table_score` LIMIT 0, 100
) AS A;
直接在Sql語句中使用LIMIT無效,需要把LIMIT查詢到的結果作爲一個結果集供AVG函數統計平均值才能生效,具體如下代碼:
SELECT AVG(A.Score) AS avg_score
FROM(
SELECT Score FROM `table_score` LIMIT 0, 100
) AS A;