Question

请帮我这个代码。我尝试创建一个表，但它不断弹出错误ORA-00904 ::无效标识符

CREATE TABLE tblParentMaster
    ( HOHCodeid VARCHAR2(10),
    Parent1 VARCHAR2(10),
    Address VARCHAR2(30),
    Home_Phone_Number CHAR(10),
    Address1 VARCHAR2(30),
    City VARCHAR2(20),
    States CHAR(2),
    Zip CHAR(5),
    Parent2Code VARCHAR2(10),
    Parent2 VARCHAR2(10),
    Address2 VARCHAR2(30),
    Volunteer CHAR(1) DEFAULT 'N',
    Email VARCHAR2(20),
        CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCode),
        CONSTRAINT nn_tblParentMaster_Parent1 NOT NULL (Parent1),
        CONSTRAINT ck_tblParentMaster_Volunteer CHECK (Volunteer IN ('Y', 'N'))
);

Answer 1

这不是你如何声明一个非空约束。您可以将命名约束设为shown in the documentation：

...
Parent1 VARCHAR2(10),
...
CONSTRAINT nn_tblParentMaster_Parent1 CHECK (Parent1 is NOT NULL)
...

或者将其声明为内联，其名称不会很好：

...
Parent1 VARCHAR2(10) NOT NULL,
...

您的PK也是错误的，您没有名为HOHCode的列：

CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCodeId),

所以：

CREATE TABLE tblParentMaster
    ( HOHCodeid VARCHAR2(10),
    Parent1 VARCHAR2(10),
    Address VARCHAR2(30),
    Home_Phone_Number CHAR(10),
    Address1 VARCHAR2(30),
    City VARCHAR2(20),
    States CHAR(2),
    Zip CHAR(5),
    Parent2Code VARCHAR2(10),
    Parent2 VARCHAR2(10),
    Address2 VARCHAR2(30),
    Volunteer CHAR(1) DEFAULT 'N',
    Email VARCHAR2(20),
        CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCodeId),
        CONSTRAINT nn_tblParentMaster_Parent1 CHECK (Parent1 is NOT NULL),
        CONSTRAINT ck_tblParentMaster_Volunteer CHECK (Volunteer IN ('Y', 'N'))
);

table TBLPARENTMASTER created.

ORA-00904无效的标识符代码

1 个答案: