hbase---Hadopp database
HBase的数据模式
将众多表按行健和时间戳合并成一个虚表，形成一个“BigTable”
anchor
| "com.cnn.www" | t9 | anchor:cnnsi.com = "CNN" |
| "com.cnn.www" | t8 | anchor:my.look.ca = "CNN.com" |
| "com.cnn.www" | t6 | contents:html = "<html>..." |
| "com.cnn.www" | t5 | contents:html = "<html>..." |
| "com.cnn.www" | t3 | contents:html = "<html>..." |
这是两张表，合成一张表后：
contents
anchor
| "com.cnn.www" | t9 | anchor:cnnsi.com = "CNN" |
|
| "com.cnn.www" | t8 | anchor:my.look.ca = "CNN.com" |
|
| "com.cnn.www" | t6 | contents:html = "<html>..." |
|
| "com.cnn.www" | t5 | contents:html = "<html>..." |
|
| "com.cnn.www" | t3 | contents:html = "<html>..." |
每个行健可以使多行，以时间戳作为版本区分，列族中的列可以往后增加；