Sql HANA新手，为什么需要引用我的字段名？

我刚开始使用SAP HANA-测试水

我的第一步是在EclipseLuna中打开一个SQL控制台，在SAP Business One演示数据库上运行一个简单的查询

我发现从OCRD中选择*可以正常工作，但从OCRD中选择CardCode、CardName会导致无效字段错误

在字段名周围加上双引号将导致一个有效查询

我关注的问题如下：

1没有一个SAP HANA示例表明查询中需要双引号。 2我们有大约2000行T-SQL查询需要转换，如果我可以使用不带双引号的查询，那将是最好的

双引号是语法的东西、JDBC的东西、SAP B1的东西、列存储的东西还是Eclipse的东西

如何在不需要引号的情况下运行查询

谢谢你帮我起床跑步

创建语法

CREATE COLUMN TABLE "SBODEMOGB"."OCRD" ("CardCode" NVARCHAR(15) NOT NULL ,
 "CardName" NVARCHAR(100),
 "CardType" CHAR(1) CS_FIXEDSTRING DEFAULT 'C',
 "GroupCode" SMALLINT CS_INT,
 "CmpPrivate" CHAR(1) CS_FIXEDSTRING DEFAULT 'C',
 "Address" NVARCHAR(100),
 "ZipCode" NVARCHAR(20),
 "MailAddres" NVARCHAR(100),
 "MailZipCod" NVARCHAR(20),
 "Phone1" NVARCHAR(20),
 "Phone2" NVARCHAR(20),
 "Fax" NVARCHAR(20),
 "CntctPrsn" NVARCHAR(90),
 "Notes" NVARCHAR(100),
 "Balance" DECIMAL CS_DECIMAL_FLOAT,
 "ChecksBal" DECIMAL CS_DECIMAL_FLOAT,
 "DNotesBal" DECIMAL CS_DECIMAL_FLOAT,
 "OrdersBal" DECIMAL CS_DECIMAL_FLOAT,
 "GroupNum" SMALLINT CS_INT DEFAULT -1,
 "CreditLine" DECIMAL CS_DECIMAL_FLOAT,
 "DebtLine" DECIMAL CS_DECIMAL_FLOAT,
 "Discount" DECIMAL CS_DECIMAL_FLOAT,
 "VatStatus" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "LicTradNum" NVARCHAR(32),
 "DdctStatus" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "DdctPrcnt" DECIMAL CS_DECIMAL_FLOAT,
 "ValidUntil" LONGDATE CS_LONGDATE,
 "Chrctrstcs" INTEGER CS_INT,
 "ExMatchNum" INTEGER CS_INT,
 "InMatchNum" INTEGER CS_INT,
 "ListNum" SMALLINT CS_INT,
 "DNoteBalFC" DECIMAL CS_DECIMAL_FLOAT,
 "OrderBalFC" DECIMAL CS_DECIMAL_FLOAT,
 "DNoteBalSy" DECIMAL CS_DECIMAL_FLOAT,
 "OrderBalSy" DECIMAL CS_DECIMAL_FLOAT,
 "Transfered" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "BalTrnsfrd" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "IntrstRate" DECIMAL CS_DECIMAL_FLOAT,
 "Commission" DECIMAL CS_DECIMAL_FLOAT,
 "CommGrCode" SMALLINT CS_INT DEFAULT 0,
 "Free_Text" NCLOB MEMORY THRESHOLD 1000,
 "SlpCode" INTEGER CS_INT DEFAULT -1,
 "PrevYearAc" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "Currency" NVARCHAR(3),
 "RateDifAct" NVARCHAR(15),
 "BalanceSys" DECIMAL CS_DECIMAL_FLOAT,
 "BalanceFC" DECIMAL CS_DECIMAL_FLOAT,
 "Protected" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "Cellular" NVARCHAR(50),
 "AvrageLate" SMALLINT CS_INT,
 "City" NVARCHAR(100),
 "County" NVARCHAR(100),
 "Country" NVARCHAR(3),
 "MailCity" NVARCHAR(100),
 "MailCounty" NVARCHAR(100),
 "MailCountr" NVARCHAR(3),
 "E_Mail" NVARCHAR(100),
 "Picture" NVARCHAR(200),
 "DflAccount" NVARCHAR(50),
 "DflBranch" NVARCHAR(50),
 "BankCode" NVARCHAR(30) DEFAULT '-1',
 "AddID" NVARCHAR(64),
 "Pager" NVARCHAR(30),
 "FatherCard" NVARCHAR(15),
 "CardFName" NVARCHAR(100),
 "FatherType" CHAR(1) CS_FIXEDSTRING DEFAULT 'P',
 "QryGroup1" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup2" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup3" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup4" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup5" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup6" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup7" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup8" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup9" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup10" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup11" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup12" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup13" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup14" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup15" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup16" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup17" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup18" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup19" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup20" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup21" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup22" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup23" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup24" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup25" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup26" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup27" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup28" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup29" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup30" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup31" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup32" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup33" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup34" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup35" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup36" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup37" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup38" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup39" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup40" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup41" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup42" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup43" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup44" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup45" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup46" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup47" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup48" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup49" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup50" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup51" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup52" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup53" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup54" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup55" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup56" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup57" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup58" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup59" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup60" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup61" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup62" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup63" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "QryGroup64" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "DdctOffice" NVARCHAR(10),
 "CreateDate" LONGDATE CS_LONGDATE,
 "UpdateDate" LONGDATE CS_LONGDATE,
 "ExportCode" NVARCHAR(8),
 "DscntObjct" SMALLINT CS_INT DEFAULT -1,
 "DscntRel" CHAR(1) CS_FIXEDSTRING DEFAULT 'L',
 "SPGCounter" SMALLINT CS_INT DEFAULT 0,
 "SPPCounter" INTEGER CS_INT DEFAULT 0,
 "DdctFileNo" NVARCHAR(9),
 "SCNCounter" SMALLINT CS_INT,
 "MinIntrst" DECIMAL CS_DECIMAL_FLOAT,
 "DataSource" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "OprCount" INTEGER CS_INT,
 "ExemptNo" NVARCHAR(50),
 "Priority" INTEGER CS_INT DEFAULT -1,
 "CreditCard" SMALLINT CS_INT DEFAULT -1,
 "CrCardNum" NVARCHAR(64),
 "CardValid" LONGDATE CS_LONGDATE,
 "UserSign" SMALLINT CS_INT,
 "LocMth" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "validFor" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "validFrom" LONGDATE CS_LONGDATE,
 "validTo" LONGDATE CS_LONGDATE,
 "frozenFor" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "frozenFrom" LONGDATE CS_LONGDATE,
 "frozenTo" LONGDATE CS_LONGDATE,
 "sEmployed" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "MTHCounter" INTEGER CS_INT,
 "BNKCounter" INTEGER CS_INT,
 "DdgKey" INTEGER CS_INT DEFAULT -1,
 "DdtKey" INTEGER CS_INT DEFAULT -1,
 "ValidComm" NVARCHAR(30),
 "FrozenComm" NVARCHAR(30),
 "chainStore" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "DiscInRet" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "State1" NVARCHAR(3),
 "State2" NVARCHAR(3),
 "VatGroup" NVARCHAR(8),
 "LogInstanc" INTEGER CS_INT DEFAULT 0,
 "ObjType" NVARCHAR(20) DEFAULT '2',
 "Indicator" NVARCHAR(2),
 "ShipType" SMALLINT CS_INT,
 "DebPayAcct" NVARCHAR(15),
 "ShipToDef" NVARCHAR(50),
 "Block" NVARCHAR(100),
 "MailBlock" NVARCHAR(100),
 "Password" NVARCHAR(32),
 "ECVatGroup" NVARCHAR(8),
 "Deleted" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "IBAN" NVARCHAR(50),
 "DocEntry" INTEGER CS_INT NOT NULL ,
 "FormCode" INTEGER CS_INT,
 "Box1099" NVARCHAR(20),
 "PymCode" NVARCHAR(15) DEFAULT '-1',
 "BackOrder" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "PartDelivr" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "DunnLevel" INTEGER CS_INT,
 "DunnDate" LONGDATE CS_LONGDATE,
 "BlockDunn" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "BankCountr" NVARCHAR(3),
 "CollecAuth" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "DME" NVARCHAR(5),
 "InstrucKey" NVARCHAR(30),
 "SinglePaym" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "ISRBillId" NVARCHAR(9),
 "PaymBlock" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "RefDetails" NVARCHAR(20),
 "HouseBank" NVARCHAR(30) DEFAULT '-1',
 "OwnerIdNum" NVARCHAR(15),
 "PyBlckDesc" INTEGER CS_INT DEFAULT -1,
 "HousBnkCry" NVARCHAR(3),
 "HousBnkAct" NVARCHAR(50),
 "HousBnkBrn" NVARCHAR(50),
 "ProjectCod" NVARCHAR(20),
 "SysMatchNo" INTEGER CS_INT DEFAULT -1,
 "VatIdUnCmp" NVARCHAR(32),
 "AgentCode" NVARCHAR(32),
 "TolrncDays" SMALLINT CS_INT,
 "SelfInvoic" CHAR(1) CS_FIXEDSTRING,
 "DeferrTax" CHAR(1) CS_FIXEDSTRING,
 "LetterNum" NVARCHAR(20),
 "MaxAmount" DECIMAL CS_DECIMAL_FLOAT,
 "FromDate" LONGDATE CS_LONGDATE,
 "ToDate" LONGDATE CS_LONGDATE,
 "WTLiable" CHAR(1) CS_FIXEDSTRING,
 "CrtfcateNO" NVARCHAR(20),
 "ExpireDate" LONGDATE CS_LONGDATE,
 "NINum" NVARCHAR(20),
 "AccCritria" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "WTCode" NVARCHAR(4),
 "Equ" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "HldCode" NVARCHAR(20),
 "ConnBP" NVARCHAR(15),
 "MltMthNum" INTEGER CS_INT,
 "TypWTReprt" CHAR(1) CS_FIXEDSTRING DEFAULT 'C',
 "VATRegNum" NVARCHAR(32),
 "RepName" NVARCHAR(15),
 "Industry" NCLOB MEMORY THRESHOLD 1000,
 "Business" NCLOB MEMORY THRESHOLD 1000,
 "WTTaxCat" NCLOB MEMORY THRESHOLD 1000,
 "IsDomestic" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "IsResident" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "AutoCalBCG" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "OtrCtlAcct" NVARCHAR(15),
 "AliasName" NCLOB MEMORY THRESHOLD 1000,
 "Building" NCLOB MEMORY THRESHOLD 1000,
 "MailBuildi" NCLOB MEMORY THRESHOLD 1000,
 "BoEPrsnt" NVARCHAR(15),
 "BoEDiscnt" NVARCHAR(15),
 "BoEOnClct" NVARCHAR(15),
 "UnpaidBoE" NVARCHAR(15),
 "ITWTCode" NVARCHAR(4),
 "DunTerm" NVARCHAR(25),
 "ChannlBP" NVARCHAR(15),
 "DfTcnician" INTEGER CS_INT,
 "Territory" INTEGER CS_INT,
 "BillToDef" NVARCHAR(50),
 "DpmClear" NVARCHAR(15),
 "IntrntSite" NVARCHAR(100),
 "LangCode" INTEGER CS_INT,
 "HousActKey" INTEGER CS_INT,
 "Profession" NVARCHAR(50),
 "CDPNum" SMALLINT CS_INT,
 "DflBankKey" INTEGER CS_INT,
 "BCACode" NVARCHAR(3),
 "UseShpdGd" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "RegNum" NVARCHAR(32),
 "VerifNum" NVARCHAR(32),
 "BankCtlKey" NVARCHAR(2),
 "HousCtlKey" NVARCHAR(2),
 "AddrType" NVARCHAR(100),
 "InsurOp347" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "MailAddrTy" NVARCHAR(100),
 "StreetNo" NVARCHAR(100),
 "MailStrNo" NVARCHAR(100),
 "TaxRndRule" CHAR(1) CS_FIXEDSTRING DEFAULT 'D',
 "VendTID" INTEGER CS_INT,
 "ThreshOver" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "SurOver" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "VendorOcup" NVARCHAR(15),
 "OpCode347" CHAR(1) CS_FIXEDSTRING DEFAULT 'A',
 "DpmIntAct" NVARCHAR(15),
 "ResidenNum" CHAR(1) CS_FIXEDSTRING DEFAULT '1',
 "UserSign2" SMALLINT CS_INT,
 "PlngGroup" NVARCHAR(10),
 "VatIDNum" NVARCHAR(32),
 "Affiliate" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "MivzExpSts" CHAR(1) CS_FIXEDSTRING DEFAULT 'B',
 "HierchDdct" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "CertWHT" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "CertBKeep" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "WHShaamGrp" CHAR(1) CS_FIXEDSTRING DEFAULT '1',
 "IndustryC" INTEGER CS_INT,
 "DatevAcct" INTEGER CS_INT,
 "DatevFirst" CHAR(1) CS_FIXEDSTRING DEFAULT 'Y',
 "GTSRegNum" NVARCHAR(20),
 "GTSBankAct" NVARCHAR(80),
 "GTSBilAddr" NVARCHAR(80),
 "HsBnkSwift" NVARCHAR(50),
 "HsBnkIBAN" NVARCHAR(50),
 "DflSwift" NVARCHAR(50),
 "AutoPost" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "IntrAcc" NVARCHAR(15),
 "FeeAcc" NVARCHAR(15),
 "CpnNo" INTEGER CS_INT,
 "NTSWebSite" SMALLINT CS_INT,
 "DflIBAN" NVARCHAR(50),
 "Series" SMALLINT CS_INT,
 "Number" INTEGER CS_INT,
 "EDocExpFrm" INTEGER CS_INT,
 "TaxIdIdent" CHAR(1) CS_FIXEDSTRING DEFAULT '3',
 "Attachment" NCLOB MEMORY THRESHOLD 1000,
 "AtcEntry" INTEGER CS_INT,
 "DiscRel" CHAR(1) CS_FIXEDSTRING DEFAULT 'L',
 "NoDiscount" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "SCAdjust" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "DflAgrmnt" INTEGER CS_INT,
 "GlblLocNum" NVARCHAR(50),
 "SenderID" NVARCHAR(50),
 "RcpntID" NVARCHAR(50),
 "MainUsage" INTEGER CS_INT,
 "SefazCheck" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 "SefazReply" NVARCHAR(254),
 "SefazDate" LONGDATE CS_LONGDATE,
 "DateFrom" LONGDATE CS_LONGDATE,
 "DateTill" LONGDATE CS_LONGDATE,
 "RelCode" NVARCHAR(2),
 "OKATO" NVARCHAR(11),
 "OKTMO" NVARCHAR(12),
 "KBKCode" NVARCHAR(20),
 "TypeOfOp" CHAR(1) CS_FIXEDSTRING,
 "OwnerCode" INTEGER CS_INT,
 "MandateID" NVARCHAR(35),
 "SignDate" LONGDATE CS_LONGDATE,
 "Remark1" INTEGER CS_INT,
 "ConCerti" NVARCHAR(20),
 "TpCusPres" INTEGER CS_INT DEFAULT 9,
 "RoleTypCod" NVARCHAR(2),
 "BlockComm" CHAR(1) CS_FIXEDSTRING DEFAULT 'N',
 PRIMARY KEY ("CardCode")) UNLOAD PRIORITY 5 AUTO MERGE; 

---

标记

一般来说，您已经在评论中找到了答案。在某种程度上，带引号的标识符区分大小写，不带引号的标识符不区分大小写。未加引号的标识符基本上“转换”为大写。所以

CREATE COLUMN TABLE tab (id INT);

及

基本相同。反之亦然。所以

CREATE COLUMN TABLE "TAB" ("ID" INT);
SELECT id FROM tab;
SELECT Id FROM Tab;
SELECT "ID" FROM "TAB";

然而，所有这些都会起作用吗

SELECT "Id" FROM "Tab";

不会。综上所述：

是的，带有“无”名称的“马”非常正确，引用的标识符被视为区分大小写。但是，当创建所有大写字母时，即使在引用时，也不需要一直使用引号

一个好的提示可能是查看HANA Studio在显示结果时显示的列标题，它们会给您一个提示。如果它们都是大写，那么这些列基本上是不区分大小写的，否则就必须用引号来匹配确切的大小写

干杯，

---

Goldfishslayer

显示create table语句。很可能在创建表时已经引用了列名。双引号不是JDBC的东西。SQL就是这样定义的：不带引号的标识符->不区分大小写。带引号的标识符->区分大小写。CardCode和CardCode在SQL中是相同的标识符。CardCode和CardCode是不同的标识符是的，创建字段名有引号。请注意，“从OCRD中选择CardCode”查询不起作用。是否即使大小写匹配，非引用标识符也不会与引用标识符匹配？正如我所说：引用标识符区分大小写。因此，如果使用引号创建列名，则必须始终使用引号。如果创建不带引号的列，则不必担心这一点。一般来说，我建议不要使用用户引号。为了澄清一点，问题似乎是CardCode被解释为CardCode，它与引用的标识符不匹配。IIRC，CARDCODE==CARDCODE==CARDCODE，但CARDCODE！=卡码。不，谢谢一匹没有名字的马。我很难知道我有什么，因为我没有创建表。如果你把你的评论作为回答，我可以接受。谢谢

SELECT "Id" FROM "Tab";