1e41f4b71Sopenharmony_ci# Rdb_KeyInfo 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## 概述 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ci描述发生变化的行的主键或者行号。 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**起始版本：** 11 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**相关模块：**[RDB](_r_d_b.md) 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci 13e41f4b71Sopenharmony_ci## 汇总 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci### 结构体 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ci| 名称 | 描述 | 19e41f4b71Sopenharmony_ci| -------- | -------- | 20e41f4b71Sopenharmony_ci| [Rdb_KeyData](union_rdb___key_info_1_1_rdb___key_data.md) | 存放变化的具体数据。 | 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci 23e41f4b71Sopenharmony_ci### 成员变量 24e41f4b71Sopenharmony_ci 25e41f4b71Sopenharmony_ci| 名称 | 描述 | 26e41f4b71Sopenharmony_ci| -------- | -------- | 27e41f4b71Sopenharmony_ci| [count](_r_d_b.md#count) | 表示发生变化的主键或者行号的数量。 | 28e41f4b71Sopenharmony_ci| [type](_r_d_b.md#type) | 表示主键的类型[OH_ColumnType](_r_d_b.md#oh_columntype)。 | 29e41f4b71Sopenharmony_ci| **data** | 存放变化的具体数据[Rdb_KeyInfo::Rdb_KeyData](union_rdb___key_info_1_1_rdb___key_data.md)。 | 30