Tag: 自联接

如何从另一个SQL表中为两个不同的列匹配数据：Inner Join和/或Union？

我有MS Access中的两个表，跟踪课程促进者和他们促进的类。 这两张表的结构如下： tbl_facilitators facilID -> a unique autonumber to keep track of individual teachers facilLname -> the Last name of the facilitator facilFname -> the First name of the facilitator tbl_facilitatorClasses classID -> a unique autonumber to keep track of individual classes className -> the name of the class (science, math, etc) primeFacil -> […]