1# OH_Cursor 2 3 4## Overview 5 6Defines a result set. 7 8It provides APIs to access the result set obtained by querying the RDB store. 9 10**Since** 11 1210 13 14**Related Modules** 15 16[RDB](_r_d_b.md) 17 18 19## Summary 20 21 22### Member Variables 23 24| Name| Description| 25| -------- | -------- | 26| [id](_r_d_b.md) | Unique identifier of the **OH_Cursor** struct.| 27| [getColumnCount](_r_d_b.md#getcolumncount) | Pointer to the function used to obtain the number of columns in the result set.| 28| [getColumnType](_r_d_b.md#getcolumntype) | Pointer to the function used to obtain the column type based on the specified column index.| 29| [getColumnIndex](_r_d_b.md#getcolumnindex) | Pointer to the function used to obtain the column index based on the specified column name.| 30| [getColumnName](_r_d_b.md#getcolumnname) | Pointer to the function used to obtain the column name based on the specified column index.| 31| [getRowCount](_r_d_b.md#getrowcount) | Pointer to the function used to obtain the number of rows in the result set.| 32| [goToNextRow](_r_d_b.md#gotonextrow) | Pointer to the function used to go to the next row of the result set.| 33| [getSize](_r_d_b.md#getsize) | Pointer to the function used to obtain information about the memory required when the column data type in the result set is **BLOB** or **TEXT**.| 34| [getText](_r_d_b.md#gettext) | Pointer to the function used to obtain the value in the form of a string based on the specified column and the current row.| 35| [getInt64](_r_d_b.md#getint64) | Pointer to the function used to obtain the value of the int64_t type based on the specified column and the current row.| 36| [getReal](_r_d_b.md#getreal) | Pointer to the function used to obtain the value of the double type based on the specified column and the current row.| 37| [getBlob](_r_d_b.md#getblob) | Pointer to the function used to obtain the value in the form of a byte array based on the specified column and the current row.| 38| [isNull](_r_d_b.md#isnull-12) | Pointer to the function used to check whether the value in the specified column is null.| 39| [destroy](_r_d_b.md#destroy-14) | Pointer to the function used to close a result set.| 40