Execute the column-value loop

The mi_value() or mi_value_by_name() function is usually called in the innermost loop of row-retrieval code. In the column-value loop, mi_value() or mi_value_by_name() retrieves a column value from the current row. This loop terminates when a value is retrieved for every column in the row (or every column your DataBlade® API module needs to access). You can obtain the number of columns in a row with the mi_column_count() function.