摘要: 主题: 条件表达式的语法: condition-expression ::= operand comparator operand | operand BETWEEN operand AND operand | operand IN ( operand (',' operand (, ...) )) 阅读全文
posted @ 2018-10-15 14:12 曦言鸢默 阅读(507) 评论(0) 推荐(0) 编辑