Question

我需要帮助我继续在编码时收到此错误，不确定我做错了什么。请帮忙。

CREATE TABLE VOLUNTEER (    VOL_ID  VARCHAR2 (8) NOT NULL,  FNAME   ORA- 00907: missing right parenthesis   - 2 0.01    

CREATE TABLE STUDENT (  Vol_id  VARCHAR2 (8) NOT NULL,  Student ORA-00904: : invalid identifier

这些是我的代码：

CREATE TABLE VOLUNTEER (
  VOL_ID    VARCHAR2 (8) NOT NULL,
  FULLNAME  VARCHAR2 (14)NOT NULL,
  SURNAME   VARCHAR2 (14) NOT NULL,
  ADDRESS   VARCHAR2 (13) NOT NULL,
  DOB    DATE,
  PHONE NUMBER CHAR (8) NOT NULL,
  EMAIL VARCHAR2 (10) NOT NULL,
  PASSPORT NUMBER   VARCHAR2 (10) NOT NULL,
  NATIONALITY   VARCHAR2 (10) NOT NULL,
  PASSPORT EXPIRY   DATE,
  GENDER    VARCHAR2 (10) NOT NULL,
  REGISTERED DISABLED   VARCHAR2 (10) NOT NULL,
  ETHNICITY VARCHAR2 (14) NOT NULL,
  CONSTRAINT fk1_Vol_id VARCHAR2 (8) NOT NULL,
  CONSTRAINT PK_Vol PRIMARY KEY (Vol_id));

CREATE TABLE STUDENT (
  Vol_id    VARCHAR2 (8) NOT NULL,
  Student_id    VARCHAR2 (8) NOT NULL,
  Course    VARCHAR2 (8) NOT NULL,
  Studyyear DATE,
  CONSTRAINT PK_STUDENTS PRIMARY KEY (Vol_id),

Answer 1

在第一次查询中，请检查此行

HandlerFunc

根据您的代码，这可能是正确的

x := 42

{
    x := 3
    y := 4
    fmt.Println("x inside block:", x) // prints 3
}

fmt.Println("x outside block:", x) // prints 42
// fmt.Println(y) // undefined: y

进行第二次查询。检查systax。

PHONE       NUMBER CHAR (8) NOT NULL,

Answer 2

一些错误：

将PASSPORT NUMBER更改为PASSPORT_NUMBER（电话号码，护照到期和注册已停用）相同。
NOT NULL

PRIMARY KEY

最好为你的圣徒命名。
学生们错过了结束。

像这样：

CREATE TABLE VOLUNTEER (
  VOL_ID              VARCHAR2(8)  CONSTRAINT VOLUNTEER__VI__PK PRIMARY KEY,
  FULLNAME            VARCHAR2(14) CONSTRAINT VOLUNTEER__F__NN  NOT NULL,
  SURNAME             VARCHAR2(14) CONSTRAINT VOLUNTEER__S__NN  NOT NULL,
  ADDRESS             VARCHAR2(13) CONSTRAINT VOLUNTEER__AD__NN NOT NULL,
  DOB                 DATE,
  PHONE_NUMBER        CHAR(8)      CONSTRAINT VOLUNTEER__PH__NN NOT NULL,
  EMAIL               VARCHAR2(10) CONSTRAINT VOLUNTEER__EM__NN NOT NULL,
  PASSPORT_NUMBER     VARCHAR2(10) CONSTRAINT VOLUNTEER__PN__NN NOT NULL,
  NATIONALITY         VARCHAR2(10) CONSTRAINT VOLUNTEER__N__NN  NOT NULL,
  PASSPORT_EXPIRY     DATE,
  GENDER              VARCHAR2(10) CONSTRAINT VOLUNTEER__G__NN  NOT NULL,
  REGISTERED_DISABLED VARCHAR2(10) CONSTRAINT VOLUNTEER__RD__NN NOT NULL,
  ETHNICITY           VARCHAR2(14) CONSTRAINT VOLUNTEER__E__NN  NOT NULL
);

CREATE TABLE STUDENT (
  Vol_id     VARCHAR2(8) CONSTRAINT STUDENT__VI__PK PRIMARY KEY,
  Student_id VARCHAR2(8) CONSTRAINT STUDENT__SI__NN NOT NULL,
  Course     VARCHAR2(8) CONSTRAINT STUDENT__C__NN  NOT NULL,
  Study_year DATE
);

Answer 3

除了提到的其他问题之外，您为CONSTRAINT fk1_Vol_id提供的定义无效。你有它

CONSTRAINT fk1_Vol_id VARCHAR2 (8) NOT NULL

这应该是

的内容

CONSTRAINT fk1_Vol_id FOREIGN KEY (VOL_ID) REFERENCES STUDENT(VOL_ID)

但是，由于VOL_ID和STUDENT上的VOLUNTEER为主键，因此这似乎没有多大意义。将STUDENT_ID作为STUDENT上的主键并将STUDENT.VOL_ID引用回VOLUNTEER表可能会更好。因此，更好的方法是：

CREATE TABLE VOLUNTEER (
  VOL_ID               VARCHAR2 (8)
    CONSTRAINT PK_VOLUNTEER
      PRIMARY KEY
        USING INDEX,
  FULLNAME             VARCHAR2 (14) NOT NULL,
  SURNAME              VARCHAR2 (14) NOT NULL,
  ADDRESS              VARCHAR2 (13) NOT NULL,
  DOB                  DATE,
  PHONE_NUMBER         CHAR (8) NOT NULL,
  EMAIL                VARCHAR2 (10) NOT NULL,
  PASSPORT_NUMBER      VARCHAR2 (10) NOT NULL,
  NATIONALITY          VARCHAR2 (10) NOT NULL,
  PASSPORT_EXPIRY      DATE,
  GENDER               VARCHAR2 (10) NOT NULL,
  REGISTERED_DISABLED  VARCHAR2 (10) NOT NULL,
  ETHNICITY            VARCHAR2 (14) NOT NULL);

CREATE TABLE STUDENT (
  STUDENT_ID           VARCHAR2 (8)
    CONSTRAINT PK_STUDENTS
      PRIMARY KEY
        USING INDEX,
  VOL_ID               VARCHAR2 (8) NOT NULL
    CONSTRAINT STUDENT_FK1
      REFERENCES VOLUNTEER (VOL_ID),
  COURSE               VARCHAR2 (8) NOT NULL,
  STUDYYEAR            DATE);

祝你好运。

脚本的Oracle错误

3 个答案: