Today's knowledge:
What Oracle Server includes: Oracle instance and Oracle database
What Oracle instance includes: SGA and background process
Place the following structures in order of hierarchy beginning with database.
A tablespaces
b Extent
C segment
D Database
Block E
The correct order: D-->a-->c-->b-->e
A few:
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/41/53/wKiom1PTGjvwx_C1AAH1ZycFElQ954.jpg "style=" float: none; "Title=" Sogou July 26, 14 1049_1.png "alt=" Wkiom1ptgjvwx_c1aah1zycfelq954.jpg "/>
650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M01/41/54/wKioL1PTG1az47jnAAGrE4myYcc466.jpg "style=" float: none; "Title=" Sogou July 26, 14 1052_2.png "alt=" Wkiol1ptg1az47jnaagre4myycc466.jpg "/>
Progress:
Chapter 01 Read it.
This article is from the "You Devil" blog, please be sure to keep this source http://599184429.blog.51cto.com/5147223/1530383