已解决问题
谷歌U2777981743用户在2016.10.09提交了关于“马自达6plsql 未找到适合要要求的from 关键字”的提问，欢迎大家涌跃发表自己的观点。目前共有1个回答，最后更新于2024-09-05T23:27:27。selectgrade.mingzi,grade.chengji
casegrade.chengjiaschengji
when'A'then"优异"
when'B'then"优秀"
when'C'then"良好"
when'D'then"一般"
when'E'then"差"
when'F'then"不及格"
else"没有此成绩"
endas"ping**"
fromgrade
详细问题描述及疑问：
selectgrade.mingzi,grade.chengji
casegrade.chengjiaschengji
when'A'then"优异"
when'B'then"优秀"
when'C'then"良好"
when'D'then"一般"
when'E'then"差"
when'F'then"不及格"
else"没有此成绩"
endas"ping**"
fromgrade