ORA-00936: 插入值时缺少表达式错误

Question

我花了很多时间搜索我在哪里犯了错误但是当它要插入最后一条记录时我找不到它有一条错误消息显示"ORA-00936: missing expression"如何解决这个问题请帮助我

create type pearson_types as object(
name varchar2(50),
sysID char(6)
)NOT FINAL;

create type doctor_types under pearson_types(
regNo char(10),
specialization varchar2(25)
)

create table doctor of doctor_types(
regNo primary key 
)

create type hospVisits_types as object(
hosChg float,
vDate varchar2(20),
refDoc REF doctor_types,
docChg float
)

create type hospvisits_tbl_types as table of hospVisits_types

create type phone_arr as VARRAY(3) of char(10)

create type patient_types under pearson_types
(
id char(10),
dob varchar(20),
phone phone_arr,
hospVisits hospvisits_tbl_types
)

create table patients of patient_types(
id primary key
)nested table hospVisits store as Hospital_tables

alter table Hospital_tables add scope for (refDoc) is doctor

insert into doctor values ('Dr.k.perera','D001','1223441234','Gynecologist');
insert into doctor values ('Dr.p.weerasingha','D002','1234421131','Dermatalogist');
insert into doctor values ('Prof .S. Fernando','D003','2342111322','Pediatrician');
insert into doctor values ('Dr.k.Sathgunanathan','D004','2344114344','Pediatrician');


insert into patients values('Sampath Weerasingha','P001','732821122V','23-JAN-73',phone_arr('0332124222'),hospvisits_tbl_types(hospVisits_types(50.00,'24-MAY-06',select ref (a) from doctor a where a.regNo='1223441234',500.00)))

Answer 1

在 SQL 语句内的 SELECT 语句中添加括号：

insert into patients values(
    'Sampath Weerasingha','P001','732821122V','23-JAN-73',phone_arr('0332124222'),
    hospvisits_tbl_types(hospVisits_types(50.00,'24-MAY-06',
        ( -- ADD ME
            select ref (a) from doctor a where a.regNo='1223441234'
        ) -- ADD ME
    ,500.00))
);

ORA-00936: 插入值时缺少表达式错误

ORA-00936: missing expression error when inserting values

sql

oracle

oracle11g

sqlplus