加入表达模糊

Question

我的ddl脚本如下：

CREATE TABLE  CPR_ENTITIES
(   
     ENTITY_ID NUMBER(20) NOT NULL,
     SYSTEM_ID NUMBER(4),
     ENTITY_TYPE_ID NUMBER(8),
     GLOBAL_UID  VARCHAR2(1000),
     SYS_OBJ_UID VARCHAR2(1000),
     ENTITY_NAME VARCHAR2(1000),
     CAGE_CODE VARCHAR2(2000),
     REVISION VARCHAR2(2000),
     ENTITY_CREATION_DATE NUMBER(20),
     ENTITY_MODIFICATION_DATE NUMBER(20),
     RELEASE_DATE NUMBER(20),
     .......................,
     ........................
      CONSTRAINT "CPR_ENTITIES_PK" PRIMARY KEY ("ENTITY_ID"),
     CONSTRAINT "CPR_ENTITIES_FK1" FOREIGN KEY ("SYSTEM_ID") REFERENCES CPR_SOURCE_SYSTEM_METADATA("SYSTEM_ID"),
     CONSTRAINT "CPR_ENTITIES_FK2" FOREIGN KEY ("ENTITY_TYPE_ID") REFERENCES CPR_ENTITY_METADATA("ENTITY_TYPE_ID"));



CREATE TABLE CPR_ENTITY_ATTRIBUTE 
(   
     VAL_ID  NUMBER(20) NOT NULL,
     ENTITY_ID NUMBER(20),
     ATT_ID NUMBER(10),
     STRING_VALUE VARCHAR2(4000),
     NUM_VALUE NUMBER(10,2),
     TIMESTAMP_VALUE TIMESTAMP,
     CREATED_BY VARCHAR2(200),
     MODIFIED_BY VARCHAR2(200),
     CREATED_ON NUMBER(20),
     MODIFIED_ON NUMBER(20),
     IS_DELETED VARCHAR2(1),    
     CONSTRAINT "CPR_ENTITY_ATTRIBUTE_PK" PRIMARY KEY ("VAL_ID"),
     CONSTRAINT "CPR_ENTITY_ATTRIBUTE_FK1" FOREIGN KEY ("ENTITY_ID") REFERENCES CPR_ENTITIES("ENTITY_ID"),
     CONSTRAINT "CPR_ENTITY_ATTRIBUTE_FK2" FOREIGN KEY ("ATT_ID") REFERENCES CPR_ENTITY_ATTRIBUTE_METADATA("ATT_ID")
 );

加入表达：

 SELECT CPR_ENTITIES.ENTITY_ID, CPR_ENTITY_ATTRIBUTE.STRING_VALUE
 FROM CPR_ENTITIES
     LEFT JOIN CPR_ENTITIES
         ON CPR_ENTITIES.ENTITY_ID = CPR_ENTITY_ATTRIBUTE.ENTITY_ID;

给出错误：

  

第1行的错误：ORA-00904：＆＃34; CPR_ENTITY_ATTRIBUTE＆＃34;。＆＃34; ENTITY_ID＆＃34;：   无效的标识符

Answer 1

也许是这样的？

SELECT CPR_ENTITIES.ENTITY_ID, CPR_ENTITY_ATTRIBUTE.STRING_VALUE
FROM CPR_ENTITIES
LEFT JOIN CPR_ENTITY_ATTRIBUTE
     ON CPR_ENTITIES.ENTITY_ID = CPR_ENTITY_ATTRIBUTE.ENTITY_ID;

Answer 2

尝试

SELECT CPR_ENTITIES.ENTITY_ID, CPR_ENTITY_ATTRIBUTE.STRING_VALUE
FROM CPR_ENTITIES
     LEFT JOIN CPR_ENTITY_ATTRIBUTE
         ON CPR_ENTITIES.ENTITY_ID = CPR_ENTITY_ATTRIBUTE.ENTITY_ID;