asked on

t-sql insert into table if not exist

I've got 1 table

[Src Table]
[ID No]
[Date]
[Selected]

[Dest Table]
[ID No]
[Date]
[Value]
[Selected]

I want to insert all the data from the Src Table to the dest table if the [ID No] and [Date] combination does not already exists in Dest Table.

BurundiLapp

insert into [dest table] (id no, etc..) select id no, etc.. from [src table] where [src table].[id no] NOT in (select [ID No] from [Dest Table]

The code isn't usable so you can't copy and paste but i hope you get the idea, let me know if you need fully working code.

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Jared_S

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SOLUTION

SStory

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SStory

Guess we posted at the same time.

Ross Turner

I created and example script as sqlfiddle so you can have a play

http://sqlfiddle.com/#!3/261be/6

Create Table SRCTABLE
(IDNo int,
 Date varchar(30),
 Selected varchar(30))

INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('1','16/12/2012 00:00:00','Test1');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('2','15/12/2012 00:00:00','Test2');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('3','31/05/2012 00:00:00','Test3');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('4','31/05/2012 00:00:00','Test4');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('5','23/08/2012 00:00:00','Test5');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('6','21/04/2012 00:00:00','Test6');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('7','27/02/2012 00:00:00','Test7');
INSERT INTO SRCTABLE(IDNo,Date,Selected) VALUES('8','21/09/2012 00:00:00','Test8');

Create Table DESTTABLE
(IDNo int,
 Date varchar(30),
 value int,
 Selected varchar(30))
  
  

INSERT INTO DESTTABLE(IDNo,Date,Value,Selected) VALUES('1','16/12/2012 00:00:00','456','Test1');
INSERT INTO DESTTABLE(IDNo,Date,Value,Selected) VALUES('2','15/12/2012 00:00:00','456','Test2');
INSERT INTO DESTTABLE(IDNo,Date,Value,Selected) VALUES('3','31/05/2012 00:00:00','456','Test3');
INSERT INTO DESTTABLE(IDNo,Date,Value,Selected) VALUES('4','31/05/2012 00:00:00','456','Test4');
INSERT INTO DESTTABLE(IDNo,Date,Value,Selected) VALUES('5','23/08/2012 00:00:00','456','Test5');

Open in new window

INSERT INTO DESTTABLE ([IDNo], [Date], [Selected])
SELECT [IDNo], [Date], [Selected]
FROM [SRCTABLE] st 

WHERE NOT EXISTS 

(SELECT * FROM [DESTTABLE] DT
WHERE DT. [IDNo] = st.[IDNo] and DT.[Date]=st.[Date]);

Select * from DESTTABLE

Open in new window

koossa

ASKER

Thank you