PHP. Руководство по PHP. 2005
odbc_num_rows
odbc_num_rows
Description
int odbc_num_rows (resource result_id)odbc_num_rows() will return the number of rows in an ODBC result. This function will return -1 on error. For INSERT, UPDATE and DELETE statements odbc_num_rows() returns the number of rows affected. For a SELECT clause this can be the number of rows available.
Note: Using odbc_num_rows() to determine the number of rows available after a SELECT will return -1 with many drivers.
odbc_num_fields
odbc_pconnect