The quarterly regulatory report shows total deposits $120 million lower than the general ledger, and filing is due in three days. The report pulls from a daily account snapshot table that should have one row per account per day, with balance and product type. What SQL would you write to investigate, and once you find the cause, would you recommend filing on time or asking for an extension?

季度监管报表里的存款总额比总账少了 1.2 亿美元，离报送截止只剩三天。报表从每日账户快照表取数，快照表每个账户每天应该有一条记录，记录余额和产品类型。你会写哪些 SQL 去排查？查出原因以后，你会建议按时报送还是申请延期？