Help Center/
GaussDB/
Developer Guide(Centralized_V2.0-2.x)/
Application Development Guide/
Development Based on libpq/
libpq API Reference/
Functions for Processing Database Result/
PQnfields
Updated on 2025-02-27 GMT+08:00
PQnfields
Description
Returns the number of columns (fields) in each row of the query result.
Prototype
int PQnfields(const PGresult *res);
Parameter
Keyword |
Description |
---|---|
res |
Operation result handle. |
Return Value
Value of the int type
Example
For details, see Typical Application Development Examples.
Parent topic: Functions for Processing Database Result
Feedback
Was this page helpful?
Provide feedbackThank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.
The system is busy. Please try again later.
For any further questions, feel free to contact us through the chatbot.
Chatbot