SELECT COUNT(*) AS `行數(shù)`, `sightml` FROM `cdb_memberfields` GROUP BY `sightml` ORDER BY `sightml`比方說我想在用戶沒有將數(shù)據(jù)保存到 `sightml` 的時候讓他的默認(rèn)值為 123 該怎么樣設(shè)置？
怎么設(shè)置SQL數(shù)據(jù)庫默認(rèn)值？
Helenr
2018-08-29 17:17:09
