You choose the object you want and move it to where you want it, only to have it end up in a different position.
你选定一个对象,并想移动到自己期望的地方,结果却是到了一个不同的位置。
When you move an object on SSD, if insufficient space exists on SSD, only part of the object will end up on SSD.
当将对象移动到SSD时,如果SSD中的空间不足,那么将只有部分对象会存储到SSD中。
Each change in the database schema has its own migration object, encapsulating a move up and a move down. Listing 1 shows an empty migration.
数据库模式中的每个变化都有自己的迁移对象,迁移对象包装了前进和后退。
应用推荐