水平分庫、水平分表、垂直分庫、垂直分表

原創 youz1976 2020-02-24 11:04

1、水平分庫----------------將之前的單庫copy幾份，庫中的表和表結構一樣

特點：

  • 每個庫的結構一樣
  • 每個庫的數據不一樣，沒有交集
  • 所有庫的並集是全量數據

2、水平分表-------------將之前的單表copy幾份，表結構一樣

特點：

  • 每個表的結構一樣
  • 每個表的數據不一樣，沒有交集
  • 所有表的並集是全量數據

3、垂直分庫------將之前單個庫的表分到不同的庫中

特點：

  • 每個庫的結構不一樣
  • 每個庫的數據不一樣，沒有交集
  • 所有庫的並集是全量數據

 

4、垂直分表-----------將之前單個表拆分成多個表，多個表中會有一個共有字段

特點：

  • 每個表的結構不一樣
  • 每個表的數據不一樣，沒有交集
  • 所有表的並集是全量數據
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