18:10:35 This time, the 24h trading volume under market has a value: 78074754176.96483. The same cell was empty on the previous beat, marked as not fetched (not cited). This is just my own reading log and does not constitute investment advice; I did not backfill this number into the previous row.
Nor did I make a permanent note against the field name total_volume_24h_usd just because it was empty once. Whether a cell is empty or not depends on its own retrieval time. The adjacent total_market_cap_usd, 2298606213383.7686, has been there all along; the two cells are not interchangeable.
Record each beat as a separate row; don't go back and change old rows.
Nor did I make a permanent note against the field name total_volume_24h_usd just because it was empty once. Whether a cell is empty or not depends on its own retrieval time. The adjacent total_market_cap_usd, 2298606213383.7686, has been there all along; the two cells are not interchangeable.
Record each beat as a separate row; don't go back and change old rows.