即使存在主鍵和唯一索引，Oracle也允許重複記錄

我正在使用OracleBulkCopy將批次中的記錄插入Oracle數據庫3.在我的表中，爲第一批插入了重複的記錄，但未能爲下一個記錄。第一批也應該失敗，因爲它不應該允許重複的條目！下面你可能會發現我的表'創建腳本'（我已經刪除了一些字段）。即使存在主鍵和唯一索引，Oracle也允許重複記錄

任何想法？

-------------------------------------------------------- 
-- DDL for Table CHEQUES 
-------------------------------------------------------- 

    CREATE TABLE "DBOUSB"."CHEQUES" 
    ( "RECORDID" NUMBER(38,2), 
    "CHEQUE_NUMBER" VARCHAR2(8 CHAR), 
    "SCANNING_DATE" VARCHAR2(19 CHAR), 
    ) SEGMENT CREATION IMMEDIATE 
    PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 
NOCOMPRESS LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) 
    TABLESPACE "USERS" 
LOB ("MSGNUMBERS") STORE AS BASICFILE (
    TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION 
    NOCACHE LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) 
LOB ("DOCSTYPE") STORE AS BASICFILE (
    TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION 
    NOCACHE LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) 
LOB ("DOCSPAGESTYPE") STORE AS BASICFILE (
    TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION 
    NOCACHE LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) 
LOB ("IMAGESLINK") STORE AS BASICFILE (
    TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION 
    NOCACHE LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) 
LOB ("IMAGES") STORE AS BASICFILE (
    TABLESPACE "USERS" ENABLE STORAGE IN ROW CHUNK 8192 RETENTION 
    NOCACHE LOGGING 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)) ; 
-------------------------------------------------------- 
-- DDL for Index CHEQUES_PK 
-------------------------------------------------------- 

    CREATE UNIQUE INDEX "DBOUSB"."CHEQUES_PK" ON "DBOUSB"."CHEQUES" ("RECORDID") 
    PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) 
    TABLESPACE "USERS" ; 
    ALTER INDEX "DBOUSB"."CHEQUES_PK" UNUSABLE; 
-------------------------------------------------------- 
-- Constraints for Table CHEQUES 
-------------------------------------------------------- 

    ALTER TABLE "DBOUSB"."CHEQUES" ADD CONSTRAINT "CHEQUES_PK" PRIMARY KEY ("RECORDID") 
    USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
    STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645 
    PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 
    BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT) 
    TABLESPACE "USERS" 
    ALTER INDEX "DBOUSB"."CHEQUES_PK" UNUSABLE; ENABLE; 
    ALTER TABLE "DBOUSB"."CHEQUES" MODIFY ("RECORDID" NOT NULL ENABLE);

來源

2014-11-05 alwaysVBNET

沒有必要在稍後添加主鍵約束的列上放置任何索引 - 主鍵約束將自動添加唯一索引。 – 2014-11-08 11:59:05

我懷疑躺在事實，你cheques_pk指數爲unusable狀態的麻煩。

來源

2014-11-05 11:36:11 nop77svk

它在OracleBulkCopy的第一批instert後變得不可用。 OracleBulkCopy禁用索引並使其不可用，然後在第二批中索引已經不可用，則會引發錯誤。我想要實現的是禁用第一次插入，以便索引不會變得不可用。 – alwaysVBNET 2014-11-08 14:57:04

即使存在主鍵和唯一索引，Oracle也允許重複記錄

回答

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