Help Center/ GaussDB/ Developer Guide(Centralized_V2.0-3.x)/ Application Development Guide/ Development Based on libpq/ libpq API Reference/ Functions for Processing Database Result/ PQntuples
Updated on 2025-08-19 GMT+08:00
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PQntuples

Function

Returns the number of rows (tuples) in the query result.

Prototype

int PQntuples(const PGresult* res);

PQntuples returns an integer result. An overflow may occur if the return value is out of the value range allowed in a 32-bit OS.

Parameter

Table 1 PQntuples parameters

Keyword

Parameter Description

res

Operation result handle.

Return Value

Value of the int type

Examples

For details, see Typical Application Development Examples.