mysql 數據庫表遷移復制

1. 表結構相同的表，且在同一數據庫（如，table1,table2)

insert into table1 select * from table2  # 完全復制

insert into table1 select distinct * from table2 # 不復制重復紀錄

insert into table1 select top 5 * from table2  # 前五條紀錄

insert into table1(a,b,c) select a,b,c from table2 # 插入指定字段值

2. 不在同一數據庫中（如，db1 table1,db2 table2)

insert into db1.table1 select * from db2.table2  #完全復制

insert into db1.table1 select distinct * from db2.table2 # 不復制重復紀錄

insert into db1.table1 select top 5 * from db2.table2  # 前五條紀錄

insert into db1.table1(a,b,c) select a,b,c from db2.table2 # 插入指定字段值