Orientdb 简明教程
OrientDB - Load Record
Load Record 用于从架构中加载特定记录。加载记录会借助记录 ID 加载记录。它在结果集中用 @rid 符号表示。
Load Record is used to load a particular record from the schema. Load record will load the record with the help of Record ID. It is represented with @rid symbol in the resultset.
以下语句是 LOAD 记录命令的基本语法。
The following statement is the basic syntax of the LOAD Record command.
LOAD RECORD <record-id>其中 <record-id> 定义要加载的记录的记录 id。
Where <record-id> defines the record id of the record you want to load.
如果您不知道特定记录的记录 ID，则可以在表上执行任何查询。在结果集中，您会找到相应记录的记录 ID (@rid)。
If you don’t know the Record ID of a particular record, then you can execute any query against the table. In the result-set you will find the Record ID (@rid) of the respective record.
Example
我们考虑我们在前几章中使用的同一个 Customer 表。
Let us consider the same Customer table that we have used in previous chapters.
Sr.No. |
Name |
Age |
1 |
Satish |
25 |
2 |
Krishna |
26 |
3 |
Kiran |
29 |
4 |
Javeed |
21 |
5 |
Raja |
29 |
尝试以下查询以检索具有记录 ID @rid: #11:0 的记录。
Try the following query to retrieve the record having Record ID @rid: #11:0.
orientdb {db = demo}> LOAD RECORD #11:0如果成功执行了以上查询，您会获得以下输出。
If the above query is executed successfully, you will get the following output.
+---------------------------------------------------------------------------+
| Document - @class: Customer @rid: #11:0 @version: 1 |
+---------------------------------------------------------------------------+
| Name | Value |
+---------------------------------------------------------------------------+
| id | 1 |
| name | satish |
| age | 25 |
+---------------------------------------------------------------------------+