发布于 2015-09-14 14:49:26 | 108 次阅读 | 评论: 0 | 来源: 网络整理
| 返回: | The last error message string. |
|---|
Sets the level of write concern for confirming the success of write operations.
See
getLastError for all options, Write Concern for a conceptual overview, 写 for information about all write operations in MongoDB, and Replica Set Write Concern for special considerations related to write concern for replica sets.