SQLite的IntegrityError：UNIQUE約束失敗：

我只是得到一個奇怪的錯誤：SQLite的IntegrityError：UNIQUE約束失敗：

IntegrityError: UNIQUE constraint failed: jumptimes.player_id, jumptimes.map_id, jumptimes.runID

我的SQL查詢：

t = (playerid, mapid, timeTaken, (time() if not dateOverwrite else dateOverwrite), runID, runLeaveZoneVelocity, EnterZoneVelocity, averageVelocity, time()) 
log("PlayerID: %s | mapid: %s | timeTaken: %s | Date: %s | runID: %s | rlvz: %s | ezv: %s | avgvel: %s | firstFinish: %s" % t) 
execute("INSERT INTO jumptimes (player_id, map_id, duration, date, runID, LeaveZoneVelocity, enterZoneVelocity, averageVelocity, firstFinish) VALUES (?,?,?,?,?,?,?,?,?)", t)

日誌輸出：

17:45:11 - PlayerID: 13 | mapid: 34 | timeTaken: 55.2569999695 | Date: 1426265111.18 | runID: 0 | rlvz: 315.484661963 | ezv: 1159.06484472 | avgvel: 1374.49441131 | firstFinish: 1426265111.18

我的數據庫結構：

CREATE TABLE IF NOT EXISTS jumptimes (
    id INTEGER PRIMARY KEY AUTO_INCREMENT, 
    player_id INTEGER REFERENCES players ON DELETE CASCADE, 
    map_id INTEGER REFERENCES maps ON DELETE CASCADE, 
    duration REAL, 
    `date` REAL, 
    runID INTEGER, 
    leaveZoneVelocity INTEGER DEFAULT 0, 
    enterZoneVelocity INTEGER DEFAULT 0, 
    averageVelocity INTEGER DEFAULT 0, 
    server INTEGER DEFAULT 0, 
    firstFinish REAL, 
    completions INTEGER DEFAULT 1, 
    UNIQUE (player_id, map_id, runID) 
)

爲題說，我總是讓SQLite IntegrityError: UNIQUE constraint failed:

來源

2015-03-13 Fragkiller

你的表的聲明的UNIQUE條款規定的player_id，map_id和runID每一行的組合必須是唯一的。您正在收到此錯誤，因爲jumptimes表中已經有一行player_id = 13,map_id = 34和runID = 0。

Here is a simple SQLFiddle重現錯誤。錯誤所談論的「約束」是UNIQUE子句，如果你能看到完整的錯誤，那麼它就和你所得到的一樣。

來源

2015-03-13 17:21:14

SQLite的IntegrityError：UNIQUE約束失敗：

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