Remove the course_enrollment_settings.base_price immediately after CASE : SELECT CASE WHEN course_enrollment_settings.base_price = 0 THEN 1 ... ... <看更多>
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Remove the course_enrollment_settings.base_price immediately after CASE : SELECT CASE WHEN course_enrollment_settings.base_price = 0 THEN 1 ... ... <看更多>
... <看更多>
usually the answers are that it should use AND, OR instead or Dynamic SQL. There is no dynamic SQL in your code. ... <看更多>
个人认为这个功能可以减少后台逻辑处理,并且由于在数据库内部完成,保证了数据的准确性(例如:数值与数据格式的合法性)。另外,如果条件包含结果集 ... ... <看更多>