我从MS Access数据库访问数据时从from子句中获取了语法错误，但如果我在访问中运行相同的查询，则会得到所需的结果，而不会出现任何错误。
感谢任何帮助。 这是我的代码
string strQuery = string.Empty ;
strQuery = "SELECT TUCLRII.LUSID,TUCLRII.UserID,TUCLRII.LastName,TUCLRII.FirstName,TUCLRII.MI,TUCLRII.Sex,TUCLRII.WhichEye,TUCLRII.Memo1,TUCLRII.Memo2,TUCLRII.CreationDT, TUCLRII.LastModifiedDT,TUCLRII.CardID,TUCLRI.UCID,TUCLRII.WiegandData,TUCLRII.LIrisCodeID,TUCLRII.LWhichEye,TUCLRII.LIrisCode,TUCLRII.RIrisCodeID,TUCLRII.RWhichEye,TUCLRII.RIrisCode,TUCLRII.LIrisImage,TUCLRII.LImageFormat,TUCLRII.LImageSize,TUCLRII.LWhichEye,TUCLRII.RIrisImage,TUCLRII.RImageFormat,TUCLRII.RImageSize,TUCLRII.RWhichEye,TIM.ImageFormat,TIM.ImageSize,TIM.FaceImage,TIM.PictureTakenDT";
strQuery += " FROM (SELECT TUCLRI.LUSID,TUCLRI.UUID,TUCLRI.UserID,TUCLRI.LastName,TUCLRI.FirstName,TUCLRI.MI,TUCLRI.Sex,TUCLRI.WhichEye,TUCLRI.Memo1,TUCLRI.Memo2,TUCLRI.CreationDT,TUCLRI.LastModifiedDT, TUCLRI.CardID, TUCLRI.UCID, TUCLRI.WiegandData, TUCLRI.LIrisCodeID ,TUCLRI.LWhichEye,TUCLRI.LIrisCode,TUCLRI.RIrisCodeID,TUCLRI.RWhichEye,TUCLRI.RIrisCode,TUCLRI.LIrisImage,TUCLRI.LImageFormat,TUCLRI.LImageSize,TUCLRI.LWhichEye,TRIM.IrisImage as RIrisImage,TRIM.ImageFormat as RImageFormat, TRIM.ImageSize as RImageSize, TRIM.WhichEye as RWhichEye";
strQuery += " FROM (SELECT TUCLR.LUSID,TUCLR.UUID,TUCLR.UserID,TUCLR.LastName,TUCLR.FirstName,TUCLR.MI,TUCLR.Sex,TUCLR.WhichEye,TUCLR.Memo1,TUCLR.Memo2,TUCLR.CreationDT,TUCLR.LastModifiedDT,TUCLR.CardID,TUCLR.UCID,TUCLR.WiegandData,TUCLR.LIrisCodeID,TUCLR.LWhichEye,TUCLR.LIrisCode,TUCLR.RIrisCodeID,TUCLR.RWhichEye,TUCLR.RIrisCode,TLIM.IrisImage as LIrisImage,TLIM.ImageFormat as LimageFormat,TLIM.ImageSize as LImageSize,TLIM.WhichEye as LWhichEye";
strQuery += " FROM (SELECT TUCI.LUSID,TUCI.UUID,TUCI.UserID,TUCI.LastName,TUCI.FirstName,TUCI.MI,TUCI.Sex,TUCI.WhichEye,TUCI.Memo1,TUCI.Memo2,TUCI.CreationDT,TUCI.LastModifiedDT,TUCI.CardID,TUCI.UCID,TUCI.WiegandData, TUCI.LIrisCodeID,TUCI.LWhichEye,TUCI.LIrisCode,TRI.IrisCodeID as RIrisCodeID,TRI.WhichEye as RWhichEye,TRI.IrisCode as RIrisCode";
strQuery += " FROM (SELECT TUC.LUSID,TUC.UUID,TUC.UserID,TUC.LastName,TUC.FirstName,TUC.MI,TUC.Sex,TUC.WhichEye,TUC.Memo1,TUC.Memo2,TUC.CreationDT,TUC.LastModifiedDT,TUC.CardID,TUC.UCID,TUC.WiegandData,TLI.IrisCodeID as LIrisCodeID,TLI.WhichEye as LWhichEye,TLI.IrisCode as LIrisCode";
strQuery += " FROM (SELECT TU.LUSID,TU.UUID,TU.UserID,TU.LastName,TU.FirstName,TU.MI,TU.Sex,TU.WhichEye,TU.Memo1,TU.Memo2,TU.CreationDT,TU.LastModifiedDT,TC.CardID,TC.UCID,TC.WiegandData FROM UserInfo TU left join CardInfo TC on (TU.UUID=TC.UUID and TU.LUSID = 0)) TUC LEFT JOIN IrisCodeInfo TLI ON(TUC.UUID = TLI.UUID and TLI.WhichEye=1))TUCI LEFT JOIN IrisCodeInfo TRI ON(TUCI.UUID = TRI.UUID and TRI.WhichEye=2))TUCLR LEFT JOIN IrisImageInfo TLIM ON(TUCLR.UUID = TLIM.UUID and TLIM.WhichEye=1))TUCLRI LEFT JOIN IrisImageInfo TRIM ON(TUCLRI.UUID = TRIM.UUID and TRIM.WhichEye=2))TUCLRII LEFT JOIN FaceImageInfo TIM ON(TUCLRII.UUID = TIM.UUID)";
答案 0 :(得分：1)
我把你的字符串语句放入Instant SQL Formatter
得到了这个
SELECT tuclrii.lusid,
tuclrii.userid,
tuclrii.lastname,
tuclrii.firstname,
tuclrii.mi,
tuclrii.sex,
tuclrii.whicheye,
tuclrii.memo1,
tuclrii.memo2,
tuclrii.creationdt,
tuclrii.lastmodifieddt,
tuclrii.cardid,
tuclri.ucid,
tuclrii.wieganddata,
tuclrii.liriscodeid,
tuclrii.lwhicheye,
tuclrii.liriscode,
tuclrii.ririscodeid,
tuclrii.rwhicheye,
tuclrii.ririscode,
tuclrii.lirisimage,
tuclrii.limageformat,
tuclrii.limagesize,
tuclrii.lwhicheye,
tuclrii.ririsimage,
tuclrii.rimageformat,
tuclrii.rimagesize,
tuclrii.rwhicheye,
tim.imageformat,
tim.imagesize,
tim.faceimage,
tim.picturetakendt
FROM (SELECT tuclri.lusid,
tuclri.uuid,
tuclri.userid,
tuclri.lastname,
tuclri.firstname,
tuclri.mi,
tuclri.sex,
tuclri.whicheye,
tuclri.memo1,
tuclri.memo2,
tuclri.creationdt,
tuclri.lastmodifieddt,
tuclri.cardid,
tuclri.ucid,
tuclri.wieganddata,
tuclri.liriscodeid,
tuclri.lwhicheye,
tuclri.liriscode,
tuclri.ririscodeid,
tuclri.rwhicheye,
tuclri.ririscode,
tuclri.lirisimage,
tuclri.limageformat,
tuclri.limagesize,
tuclri.lwhicheye,
TRIM.irisimage AS ririsimage,
TRIM.imageformat AS rimageformat,
TRIM.imagesize AS rimagesize,
TRIM.whicheye AS rwhicheye
FROM (SELECT tuclr.lusid,
tuclr.uuid,
tuclr.userid,
tuclr.lastname,
tuclr.firstname,
tuclr.mi,
tuclr.sex,
tuclr.whicheye,
tuclr.memo1,
tuclr.memo2,
tuclr.creationdt,
tuclr.lastmodifieddt,
tuclr.cardid,
tuclr.ucid,
tuclr.wieganddata,
tuclr.liriscodeid,
tuclr.lwhicheye,
tuclr.liriscode,
tuclr.ririscodeid,
tuclr.rwhicheye,
tuclr.ririscode,
tlim.irisimage AS lirisimage,
tlim.imageformat AS limageformat,
tlim.imagesize AS limagesize,
tlim.whicheye AS lwhicheye
FROM (SELECT tuci.lusid,
tuci.uuid,
tuci.userid,
tuci.lastname,
tuci.firstname,
tuci.mi,
tuci.sex,
tuci.whicheye,
tuci.memo1,
tuci.memo2,
tuci.creationdt,
tuci.lastmodifieddt,
tuci.cardid,
tuci.ucid,
tuci.wieganddata,
tuci.liriscodeid,
tuci.lwhicheye,
tuci.liriscode,
tri.iriscodeid AS ririscodeid,
tri.whicheye AS rwhicheye,
tri.iriscode AS ririscode
FROM (SELECT tuc.lusid,
tuc.uuid,
tuc.userid,
tuc.lastname,
tuc.firstname,
tuc.mi,
tuc.sex,
tuc.whicheye,
tuc.memo1,
tuc.memo2,
tuc.creationdt,
tuc.lastmodifieddt,
tuc.cardid,
tuc.ucid,
tuc.wieganddata,
tli.iriscodeid AS liriscodeid,
tli.whicheye AS lwhicheye,
tli.iriscode AS liriscode
FROM (SELECT tu.lusid,
tu.uuid,
tu.userid,
tu.lastname,
tu.firstname,
tu.mi,
tu.sex,
tu.whicheye,
tu.memo1,
tu.memo2,
tu.creationdt,
tu.lastmodifieddt,
tc.cardid,
tc.ucid,
tc.wieganddata
FROM userinfo tu
LEFT JOIN cardinfo tc
ON ( tu.uuid = tc.uuid
AND tu.lusid = 0 )) tuc
LEFT JOIN iriscodeinfo tli
ON( tuc.uuid = tli.uuid
AND tli.whicheye = 1 ))tuci
LEFT JOIN iriscodeinfo tri
ON( tuci.uuid = tri.uuid
AND tri.whicheye = 2 ))tuclr
LEFT JOIN irisimageinfo tlim
ON( tuclr.uuid = tlim.uuid
AND tlim.whicheye = 1 ))tuclri
LEFT JOIN irisimageinfo TRIM
ON( tuclri.uuid = TRIM.uuid
AND TRIM.whicheye = 2 ))tuclrii
LEFT JOIN faceimageinfo tim
ON( tuclrii.uuid = tim.uuid )
您似乎为每个联接创建了一个内联视图。
从语法上讲，它对我来说很好，但也许Access不喜欢它。当你可以使用标准连接时，它是一种非常低效的连接方式
SELECT tu.lusid,
tu.userid,
tu.lastname,
tu.firstname,
tu.mi,
tu.sex,
tu.whicheye,
tu.memo1,
tu.memo2,
tu.creationdt,
tu.lastmodifieddt,
tc.cardid,
tc.ucid,
tc.wieganddata,
tli.iriscodeid AS liriscodeid,
tli.whicheye AS lwhicheye,
tli.iriscode AS liriscode
tri.iriscodeid AS ririscodeid,
tri.whicheye AS rwhicheye,
tri.iriscode AS ririscode,
tlim.irisimage AS lirisimage,
tlim.imageformat AS limageformat,
tlim.imagesize AS limagesize,
tlim.whicheye AS lwhicheye
TRIM.irisimage AS ririsimage,
TRIM.imageformat AS rimageformat,
TRIM.imagesize AS rimagesize,
TRIM.whicheye AS rwhicheye
tim.imageformat,
tim.imagesize,
tim.faceimage,
tim.picturetakendt
FROM
userinfo tu
LEFT JOIN cardinfo tc
ON ( tu.uuid = tc.uuid
AND tu.lusid = 0 )
LEFT JOIN iriscodeinfo tli
ON( tu.uuid = tli.uuid
AND tli.whicheye = 1 )
LEFT JOIN iriscodeinfo tri
ON( tu.uuid = tri.uuid
AND tri.whicheye = 2 )
LEFT JOIN irisimageinfo tlim
ON( tli.uuid = tlim.uuid
AND tlim.whicheye = 1 )
LEFT JOIN irisimageinfo TRIM
ON( tri.uuid = TRIM.uuid
AND TRIM.whicheye = 2 )
LEFT JOIN faceimageinfo tim
ON( tu.uuid = tim.uuid )
答案 1 :(得分：0)
您在JOIN子句中的括号周围缺少一些空格。不过，我不确定这是不是问题。