Question

I have a Table named as Table1 as below

ID, JobNo, Date, Comments

I have a View named as View1 created with the help of Synonyms from another Read Only Table as below,

ID, JobNo, StartSeq, EndSeq

The column ID is a Primary Key. And I will have to UPDATE Table1 with the Data for columns ID and JobNo from View1.

Lets say View1 has 2 rows and I will INSERT those 2 rows into Table1. So when View1 gets its 3rd row, how do I update the Table1 with the info on 3rd row, without deleting the Data thats previously stored in Table1.

Right now, I have the following query but it doesn’t seem to work because of the Duplicate Primary Key issue.

INSERT INTO Table1(ID, JobNo)
SELECT View1.ID, View1.JobNo
FROM View1

I’m a newbie to SQL so please help me out with this

Answer 1

Assuming you only want to INSERT new data on table1 and not actually UPDATE the data that you already have, then you should do:

INSERT INTO Table1(ID, JobNo) 
SELECT View1.ID, View1.JobNo 
FROM View1
WHERE View1.ID NOT IN (SELECT ID FROM Table1)