Continue insert if one row fails in SQL Server - sql-server-2012

Question

I have a question about SQL Server - how to continue insert if one row fails?
I have two tables, emp and empref. I want insert rows into the empref table using emp table.
While inserting, one of the rows fails with an "unexpected format" error. emp and empref both have the same columns, but datatypes are different.
Source : emp
CREATE TABLE [dbo].[emp]
(
[id] [varchar](50) NULL,
[name] [varchar](50) NULL,
[sal] [int] NULL
)
INSERT INTO [dbo].[emp] ([id], [name], [sal]) VALUES (N'1', N'abc', 100)
INSERT INTO [dbo].[emp] ([id], [name], [sal]) VALUES (N'2', N'xyz', 200)
INSERT INTO [dbo].[emp] ([id], [name], [sal]) VALUES (N'a4', N'un', 300)
In the empref ref expected int value but one values alphanumeric values.
CREATE TABLE [dbo].[empref]
(
[id] [int] NULL,
[name] [varchar](50) NULL,
[sal] [int] NULL
)
Expected result in empref table :
id |name | name
---+-----+------
1 |abc | 100
2 |xyz | 200
I tried like this:
BEGIN TRY
INSERT INTO empref
SELECT * FROM emp
END TRY
BEGIN CATCH
SELECT ERROR_MESSAGE() erro
END CATCH
This query is not returning the expected result.
Please tell me how to write the query to achieve this task in SQL Server

Answer 1

You can use TRY_CAST to check if the conversion will work
INSERT INTO empref
(id, name, sal)
SELECT
TRY_CAST(e.id AS int),
e.name,
e.sal
FROM emp e
WHERE TRY_CAST(e.id AS int) IS NOT NULL;
db<>fiddle
Note: Always specify columns to be inserted into.