1.案例背景说明
1.该项目为互联网电商项目,随着互联网金融业务的发展,订单量逐渐的增大;
2.当前订单总量为 20000万
3.当前当前订单表为10张(ebiz_third_order),分表分别为
ebiz_third_order_0
ebiz_third_order_1
ebiz_third_order_2
ebiz_third_order_3
ebiz_third_order_4
ebiz_third_order_5
ebiz_third_order_6
ebiz_third_order_7
ebiz_third_order_8
ebiz_third_order_9
4.10张表中,每张表大概数量为200万
5.当前数据库连接
6.当前每日订单增量15万
2.案例目标
1.将10张表扩张为20张表ebiz_third_order_{00~19},表明如下:
ebiz_third_order_00,ebiz_third_order_01,ebiz_third_order_02,
ebiz_third_order_03,ebiz_third_order_04,ebiz_third_order_05,
ebiz_third_order_06,ebiz_third_order_07,ebiz_third_order_08,
ebiz_third_order_09,ebiz_third_order_10,ebiz_third_order_11,
ebiz_third_order_12,ebiz_third_order_13,ebiz_third_order_14,
ebiz_third_order_15,ebiz_third_order_16,ebiz_third_order_17,
ebiz_third_order_18,ebiz_third_order_19
2.需要先将10张表的数据同步到20张表中
3.后续新增数据不再存储在之前的10张表中,新增数据全部存储新增的20张表
3.案例备注
1.涉及到分表的参照表内容,在这里不赘述,详见