---
title: "db_field_name | open.mp"
description: "Returns the name of a field at a particular index."
canonical: https://omp.itsneufox.com/th/docs/scripting/functions/db_field_name
language: th
---

# db\_field\_name

## คำอธิบาย

Returns the name of a field at a particular index.

| Name | Description |
| --- | --- |
| DBResult:dbresult | The result to get the data from; returned by db\_query. |
| field | The index of the field to get the name of. |
| result\[\] | The result. |
| maxlength | The max length of the field. |

## ส่งคืน

Returns 1, if the function was successful, otherwise 0 if DBResult:dbresult is a NULL reference or the column index not available.

## ตัวอย่าง

```c
// Callback
public OnPlayerCommandText(playerid, cmdtext[])
{
    // If "cmdtext" equals "/getfieldnames"
    if (!strcmp(cmdtext, "/getfieldnames", true, 14))
    {
        // Declare "db_result", "i", and "columns"
        new DBResult:db_result = db_query(db_handle, "SELECT * FROM `join_log`"), i, columns = db_num_fields(db_result), info[30];

        // Iterate from 0 to "columns-1"
        for (; i < columns; i++)
        {
            // Store the name of the i indexed column name into "info"
            db_field_name(db_result, i, info, sizeof info);

            // Print "info"
            printf("Field name: %s", info);
        }

        // Frees the result
        db_free_result(db_result);

        // Returns 1
        return 1;
    }

    // Returns 0
    return 0;
}
```

## บันทึก

warning

Using an invalid handle will crash your server! Get a valid handle by using db\_query. But it's protected against NULL references.

## ฟังก์ชั่นที่เกี่ยวข้องกัน

-   db\_open: Open a connection to an SQLite database
-   db\_close: Close the connection to an SQLite database
-   db\_query: Query an SQLite database
-   db\_free\_result: Free result memory from a db\_query
-   db\_num\_rows: Get the number of rows in a result
-   db\_next\_row: Move to the next row
-   db\_num\_fields: Get the number of fields in a result
-   db\_field\_name: Returns the name of a field at a particular index
-   db\_get\_field: Get content of field with specified ID from current result row
-   db\_get\_field\_assoc: Get content of field with specified name from current result row
-   db\_get\_field\_int: Get content of field as an integer with specified ID from current result row
-   db\_get\_field\_assoc\_int: Get content of field as an integer with specified name from current result row
-   db\_get\_field\_float: Get content of field as a float with specified ID from current result row
-   db\_get\_field\_assoc\_float: Get content of field as a float with specified name from current result row
-   db\_get\_mem\_handle: Get memory handle for an SQLite database that was opened with db\_open.
-   db\_get\_result\_mem\_handle: Get memory handle for an SQLite query that was executed with db\_query.
-   db\_debug\_openfiles
-   db\_debug\_openresults