NAME
odbx_rows_affected - Returns the number of changed records
SYNOPSIS
FC#include <opendbx/api.h>F[0]
FCuint64_t odbx_rows_affectedF[0] FC(odbx_result_t* result);F[0]
DESCRIPTION
Returns the number of rows that have been changed by the current statement whose result set was retrieved by FCodbx_resultF[0](). Affected rows are only returned for DELETE, INSERT or UPDATE statements and their concrete number depends on the database implementation. Instead returning the number of rows which are matched by the WHERE clause, MySQL for example does only count the rows whose values have really been changed.
The FCresultF[0] parameter required by this function must be a valid result set returned by FCodbx_resultF[0]() and must not has been feed to FCodbx_result_finishF[0]() before.
RETURN VALUE
FCodbx_rows_affectedF[0]() returns the number of changed rows on success and zero if the database server didn't alter any rows. A value of zero can be returned if the statement doesn't match any rows. Some database server like MySQL may return a lower number than expected because they doesn't modify records whose values wouldn't change.
ERRORS
This function will also return zero if the FCresultF[0] parameter is invalid.
SEE ALSO
FCodbx_resultF[0](), FCodbx_result_finishF[0]()