sqlite查詢語句 SQLite多條件查詢?
SQLite多條件查詢?選擇visitingdate,count(*)訪問次數(shù),sum(case when is sendbook=truenthen1else0end)書籍交付次數(shù),sum(case
SQLite多條件查詢?
選擇visitingdate,count(*)訪問次數(shù),sum(case when is sendbook=truenthen1else0end)書籍交付次數(shù),sum(case when is sign=truenthen1else0end)來自visitingorders的票據(jù)簽名次數(shù)routing visitingdate