爲什麼下面的語句返回一個1146錯誤SQL表「HistoryDB.HistoryDB」不存在?我正試圖在ID相同的數據庫中加入兩個表。我很抱歉,如果列/表名稱令人困惑,它們出於安全目的已經被損壞。爲什麼我的SQL查詢給1146錯誤尋找Database.Database?
select Reporttbl.id, TableInfo_tbl.lastTime
from HistoryDB
INNER JOIN Reporttbl AS TableInfo_tbl on Reporttbl.statID = TableInfo_tbl.statID
WHERE lastReportTime BETWEEN '2016-09-13 00:00:00' and '2016-09-13 23:00:00'
Group BY id, UNIX_TIMESTAMP(lastReportTime) DIV 3600 ORDER BY id ASC
你弄明白了嗎? – kbball