SqLite.js Uncaught Error: CHECK constraint failed

Question

我试图在 SQLite 中的 table 中插入值，但得到

SqLite.js Uncaught Error: CHECK constraint failed: st .

我找不到任何错误。有人可以帮助找出错误吗？

这是我的创建 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)   
);

这是我的插入语句。

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

Answer 1

首先：始终指定列列表

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');

其次通过使用格式使阅读和调试更容易：

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
 )   
);

您可以通过这种方式轻松发现您的错误或简单地添加注释行直到它起作用。

DBFiddle Demo

SqLite.js Uncaught Error: CHECK constraint failed

SqLite.js Uncaught Error: CHECK constraint failed

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