摘要:
create table AA ( id NUMBER, name VARCHAR2(3) ); insert into aa (id,name) values(1,'g1'); insert into aa (id,name) values(2,'g2'); select t.*, t.rowid 阅读全文
摘要:
I start to looking for the meaning of life from my highschool period. One day, in a chemistry class, I looked out the window, the teacher called my na 阅读全文
摘要:
遍查网上关于SQL语言分类的情况,有对有错,经Adam验证,共分为四大类(及TCL): 数据查询语言DQL,(data query Language) select DML statements are used for performing queries on the data within s 阅读全文