Check record exist or changed or new

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1.00/5 (1 vote)

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SQL-Server-2008R2

I want to compare two tables having columns like
[Licensee],[ENGINENO],[HULLNO],[ENGINETYPE],[OWNER],[YARD],[Spec],[ORDATE],[DLDATE]

one table had modified records

I want to show both tables's record which are modified into gridview

Posted 10-Jul-14 18:19pm

aparnaChandras

Updated 18-Jul-14 0:45am

v5

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Prasad Avunoori 11-Jul-14 2:44am

How many records would be inserted at once?

aparnaChandras 15-Jul-14 0:15am

Thousands

Prasad Avunoori 15-Jul-14 0:52am

Then, Solution1 is suitable for you.

2 solutions

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Prasad Avunoori · Answer 1 · 2014-07-10T20:48:00

Solution 1

SQL

IF NOT EXISTS( SELECT * FROM TABLENAME WHERE ID = @NewId)
BEGIN
    --INSERT THE RECORD
END
ELSE
BEGIN
    --UPDATE THE RECORD
END

Posted 10-Jul-14 20:48pm

Prasad Avunoori

Sarvesh Kumar Gupta · Answer 2 · 2014-07-10T21:14:00

Hi,

You can use below methods for this

1.

SQL

IF NOT EXISTS( SELECT * FROM TABLENAME WHERE ID = @NewId)
BEGIN
    --INSERT THE RECORD
END
ELSE
BEGIN
    --UPDATE THE RECORD
END

2.

SQL

MERGE INTO Target as t
USING Source as s
    ON t.ID = s.ID
WHEN MATCHED THEN
    UPDATE SET t.Name = s.Name, t.Address = s.Address
WHEN NOT MATCHED BY TARGET THEN
    INSERT (Id, Name, Address)
    VALUES (s.Id, s.Name, s.Address)
WHEN NOT MATCHED BY SOURCE THEN
    DELETE OUTPUT$action, inserted.id, deleted.id