mysql千万级数据库表优化?
- WBOYOriginal
- 2016-06-07 17:50:571140browse
2.数据项：是否有大字段，那些字段的值是否经常被更新；3.数据查询SQL条件：哪些数据项的列名称经常出现在WHERE、GROUP BY、ORDER BY子句中等；4.数据更新类SQL条件：有多少列经常出现UPDATE或DELETE 的WHERE子句中；
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