Oracle SQL找不到错误原因

Question

在创建表的部分代码中，我不断收到无效的标识符错误。 我的代码的其他所有部分都可以正常执行，但该表不能执行。

CREATE TABLE saleinv
(saleinv VARCHAR(6)
,cname VARCHAR (20) NOT NULL
,salesman VARCHAR(20) NOT NULL
,saledate DATE
,serial VARCHAR(8) NOT NULL
,totalprice NUMERIC(9,2)
,discount NUMERIC(8,2)
,net NUMERIC(9,2)
,tax NUMERIC(8,2)
,licfee NUMERIC(6,2)
,comission NUMERIC(8,2)
,tradeserial VARCHAR(8) NOT NULL
,tradeallow NUMERIC(9,2)
,fire VARCHAR(1)
      CHECK (fire IN ('Y','N'))
,collision VARCHAR(1)
      CHECK (collision IN ('Y','N'))
,liability VARCHAR(1)
      CHECK (liability IN ('Y','N'))
,property VARCHAR(1)
      CHECK (property IN ('Y','N'))
,CONSTRAINT salesinv_saledate_nn NOT NULL
      CHECK (saledate > TO_DATE('01-JAN-1990','DD-MON-YYYY'))
,CONSTRAINT saleinv_pk PRIMARY KEY (saleinv)
,CONSTRAINT saleinv_cname_fk FOREIGN KEY (cname) REFERENCES customer (cname)
,CONSTRAINT saleinv_salesman_fk FOREIGN KEY (salesman) REFERENCES employee (empname)
,CONSTRAINT saleinv_serial_fk FOREIGN KEY (serial) REFERENCES car (serial)
,CONSTRAINT saleinv_tradeserial_fk FOREIGN KEY (tradeserial) REFERENCES car (serial)
)

这是输出：

Error report -
ORA-00904: : invalid identifier
00904. 00000 -  "%s: invalid identifier"
*Cause:    
*Action:

如果有人可以帮助我弄清楚为什么会发生此错误，将不胜感激。

Answer 1

SQL * Plus是一个很好的工具。 那些靠GUI生活的人，靠GUI而死。

向下滚动； 然后从第23行中删除“ NOT NULL”，并将其放入第5行中。

SQL> CREATE TABLE saleinv
  2  (saleinv VARCHAR(6)
  3  ,cname VARCHAR (20) NOT NULL
  4  ,salesman VARCHAR(20) NOT NULL
  5  ,saledate DATE
  6  ,serial VARCHAR(8) NOT NULL
  7  ,totalprice NUMERIC(9,2)
  8  ,discount NUMERIC(8,2)
  9  ,net NUMERIC(9,2)
 10  ,tax NUMERIC(8,2)
 11  ,licfee NUMERIC(6,2)
 12  ,comission NUMERIC(8,2)
 13  ,tradeserial VARCHAR(8) NOT NULL
 14  ,tradeallow NUMERIC(9,2)
 15  ,fire VARCHAR(1)
 16        CHECK (fire IN ('Y','N'))
 17  ,collision VARCHAR(1)
 18        CHECK (collision IN ('Y','N'))
 19  ,liability VARCHAR(1)
 20        CHECK (liability IN ('Y','N'))
 21  ,property VARCHAR(1)
 22        CHECK (property IN ('Y','N'))
 23  ,CONSTRAINT salesinv_saledate_nn NOT NULL
 24        CHECK (saledate > TO_DATE('01-JAN-1990','DD-MON-YYYY'))
 25  ,CONSTRAINT saleinv_pk PRIMARY KEY (saleinv)
 26  ,CONSTRAINT saleinv_cname_fk FOREIGN KEY (cname) REFERENCES customer (cname)
 27  ,CONSTRAINT saleinv_salesman_fk FOREIGN KEY (salesman) REFERENCES employee (empname)
 28  ,CONSTRAINT saleinv_serial_fk FOREIGN KEY (serial) REFERENCES car (serial)
 29  ,CONSTRAINT saleinv_tradeserial_fk FOREIGN KEY (tradeserial) REFERENCES car (serial)
 30  );
,CONSTRAINT salesinv_saledate_nn NOT NULL
                                 *
ERROR at line 23:
ORA-00904: : invalid identifier


SQL>