PQgetvalue ​

Function ​

PQgetvalue is used to return a single field value of one row of a PGresult. Row and column numbers start from 0. The caller should not release the result directly. The result will be released when the associated PGresult handle is passed to PQclear.

Prototype ​

char *PQgetvalue(const PGresult *res,
                 int row_number,
                 int column_number);

Parameter ​

Table 1

Return Value ​

For data in text format, the value returned by PQgetvalue is a null-terminated string representation of the field value.

For binary data, the value is a binary representation determined by the typsend and typreceive functions of the data type.

If this field is left blank, an empty string is returned.

Example ​

For details, see Example.