Question

我正在尝试在SQLite中的表中插入值但是获取

SqLite.js未捕获错误：CHECK约束失败： st 。

我无法找到任何错误。有人可以帮助解决错误吗？

这是我的create table语句：

CREATE TABLE st(EMPLOYE_ID TEXT primary key ,  EMPLOYE_Name text NOT NULL ,
father_name text NOT NULL, cnic INTEGER NOT NULL,DOB real not null,address 
text not null,
 username text not null,password text not null, post text not null 
CHECK(typeof(employe_id)='text' AND length(employe_id)<=10 and 
(employe_name)='text'  AND 
length(employe_name)<=100 and (father_name)='text' 
 AND length(father_name)<=100  and(cnic)='integer' AND length(cnic)=13 and 
(address)='text' and length(address)<=200 
and (username)='text'
 and length(username)<=10 and (password)='text' and length(password)<=20)   
);

这是我的插入声明。

insert into st values('a1','jamshaid','iqbal',1110332507339,julianday('1998-
10-05'),'26 eb rehmkot','a1','a1','Admin');

Answer 1

首先：始终指定专栏列表

insert into st(employe_id, employe_name, father_name, cnic, DOB, address, username, password,post)
values('a1','jamshaid','iqbal',1110332507339,julianday('1998-10-05'),'26 eb rehmkot','a1','a1','Admin');

其次，使用格式化更容易阅读和调试：

CREATE TABLE st(
 EMPLOYE_ID TEXT primary key ,              -- typo: employee_id, and why not INT
 EMPLOYE_Name text NOT NULL ,
 father_name text NOT NULL,
 cnic INTEGER NOT NULL,
 DOB real not null,                         -- why is DOB real and not DATE???
 address text not null,
 username text not null,
 password text not null,                    -- I hope this is not clear text
 post text not null 
CHECK(
  typeof(employe_id)='text' 
 AND length(employe_id)<=10 
 and typeof(employe_name)='text'  
 AND length(employe_name)<=100 
 and typeof(father_name)='text' 
 AND length(father_name)<=100  
 and typeof(cnic)='integer' 
 AND length(cnic)=13 
 and typeof(address)='text' 
 and length(address)<=200 
 and typeof(username)='text'
 and length(username)<=10 
 and typeof(password)='text' 
 and length(password)<=20
 )   
);

您可以轻松地以这种方式发现您的错误，或者只是对行进行注释直到它起作用。

<强> DBFiddle Demo

SqLite.js未捕获错误：CHECK约束失败

1 个答案: