SQL datable query to insert multiple column values - sql

Question

How to add multiple values in a single column of table in SQL? My table looks like this:
Create table emp
(
id number(5),
name varchar(25),
phone varchar(25)
);
Now I want to add values and multiple phones in the phone column. How to do that? I tried using
insert into emp values (id, name, phone)
values (1, lee, (23455, 67543));
but this is not working

Answer 1

Use two insert statements instead
insert into emp values (id, name,phone) values (1,'lee','23455');
insert into emp values (id, name,phone) values (1,'lee','67543');
or If you want to store both the values in single row
insert into emp values (id, name,phone) values (1,'lee','23455,67543');
Here table is not normalised. You either need to store Phone Number info in separate table or use two different column in same table.
Try changing you table design like this.
EMP table
CREATE TABLE emp
(
emp_id INT IDENTITY(1, 1) PRIMARY KEY,
name VARCHAR(25)
);
PhoneNumber Table
CREATE TABLE PhoneNumber
(
phoneno_id INT IDENTITY(1, 1),
emp_id INT,
Phone_Number int,
Cell_Number Int,
FOREIGN KEY (emp_id) REFERENCES emp(emp_id)
)
Note : Auto increment syntax may differ based on the database you are using.

Answer 2

The proper and only real well-designed way to do this in a relational setting is to use a separate table for your phones (this is in SQL Server specific syntax - it might be slightly different, depending on which concrete database system you're using):
Create table emp
(
id INT PRIMARY KEY,
name varchar(25)
)
create table phone
(
phoneId INT IDENTITY(1,1) PRIMARY KEY CLUSTERED,
empid INT NOT NULL,
phone varchar(25) NOT NULL,
CONSTRAINT FK_Phone_Emp
FOREIGN KEY(empid) REFERENCES dbo.emp(id)
);
and then you insert the employee data into emp :
insert into emp(id, name)
values (1, lee);
and the phones into phone:
insert into phone(empid, phone) values(1, 23455);
insert into phone(empid, phone) values(1, 67543);
With this setup, you have proper normalization for the database, and you can store as many phones as you like, for each employee.