HEAD FIRST SQL 的读书心得

The datatype of phone_number is String;

 

DataTime contains DATA and TIME

Data only contains DATA

Time only contains TIMEl;

 

SQL is case insensitive So use the "_" to seperate the var;

posted @ 2009-02-15 21:13  小贱  阅读(149)  评论(0)    收藏  举报