摘要
《数据库应用》教学中查询语句是重点和难点,使学生读懂查询代码、熟练地写出复杂的查询语句是教学中要达到的目标。论述教学中总结出的查询语句的一些特点,例如查询语句的各子句在执行时具有顺序性、过程性,各子句组成查询语句时具有相关性、可选性这些特点,让学生掌握查询语句的这些特点,必定会使学生的学习效率大幅提高。
The query statement is the importance and difficulty in the teaching of Database Application. Making student to understand query statement and finishing a complex query code skillfully is the teaching goal to achieve, the paper discusses some features summarized in the teaching of query statement. The each clause of query statement while executed show succession and process. The each clause when constituting query statement have some feature of relativity and optional. If makes student mastering these feature of query statement, the student will greatly improve their learning efficiency.
关键词
数据库应用
查询语句
顺序性
过程性
Database Application
Query Statement
Succession
Process
