PostgreSQL Antipatterns: Iṣiro Awọn ipo ni SQL
SQL kii ṣe C ++, kii ṣe JavaScript. Nitorinaa, igbelewọn ti awọn ọrọ ọgbọn waye ni oriṣiriṣi, ati pe kii ṣe ohun kanna rara: NIBI fncondX () AND fncondY () = fncondX () && fncondY () Ninu ilana ti iṣapeye ero ipaniyan ibeere, PostgreSQL le lainidii “ tunto” awọn ipo deede, maṣe ṣe iṣiro eyikeyi ninu wọn fun awọn igbasilẹ kọọkan, tọka si [...]