To wanghai(汪海): 如果表里面有数据的话,就会有影响吗?To All: 如果表的外键比较多的话,那么外键的顺序是否重要? 如果需要在表上面建立索引的话,那么,字段顺序仍然没有影响吗?
快速增加记录 insert into tbname select * from tbname; insert into tbname select * from tbname; insert into tbname select * from tbname; insert into tbname select * from tbname; insert into tbname select * from tbname; insert into tbname select * from tbname; insert into tbname select * from tbname; ... 以指数的速度增长
如果表里面有数据的话,就会有影响吗?To All:
如果表的外键比较多的话,那么外键的顺序是否重要?
如果需要在表上面建立索引的话,那么,字段顺序仍然没有影响吗?
insert into tbname select * from tbname;
insert into tbname select * from tbname;
insert into tbname select * from tbname;
insert into tbname select * from tbname;
insert into tbname select * from tbname;
insert into tbname select * from tbname;
insert into tbname select * from tbname;
...
以指数的速度增长