UPSERT in SSIS

Question

I am writing an SSIS package to run on SQL Server 2008. How do you perform UPSERT on SSIS?

  IF KEY NOT EXISTS
   INSERT
 ELSE
   IF DATA CHANGED
     UPDATE
   Endif
 Endif

Answer 1

See SQL Server 2008 - Using Merge from SSIS . I implemented something similar, and it was very easy. Just using the BOL page. Inserting, updating and deleting data using MERGE was enough to make me move.

Answer 2

I would suggest you take a look at the Mat Stephen weblog on SQL Server upsert.

SQL 2005 - UPSERT: In nature, but not by name; but finally

Answer 3

The main Language Manipulation Language (DML) commands that have been used for many years are Update, Paste, and Delete. They do exactly what you expect: Insert adds new entries, Update modifies existing entries and Delete deletes entries.

The UPSERT statement modifies existing records; if there are no records, INSERTS writes new records. The functionality of the UPSERT statute can be achieved by two new sets of TSQL statements. These are two new

EXCEPT INTERSECT 

With the exception of: -

Returns any single values ​​from the query to the left of the EXCEPT operand that also do not return from the correct query

Intersect: - Returns any various values ​​returned by both the query to the left and to the right of the INTERSECT operand.

Example: - Suppose we have two tables, Table 1 and Table 2

 Table_1 column name(Number, datatype int) ---------- 1 2 3 4 5 Table_2 column name(Number, datatype int) ---------- 1 2 5 SELECT * FROM TABLE_1 EXCEPT SELECT * FROM TABLE_2 

will return 3.4, since it is present in table_1, and not in table_2

 SELECT * FROM TABLE_1 INTERSECT SELECT * FROM TABLE_2 

will return 1,2,5, since they are present in both tables Table_1 and Table_2.

All pains of complex joins are now eliminated :-)

To use this feature in SSIS, you need to add the Execute SQL task and place the code there.

Answer 4

Another way to create upsert in sql (if you have preliminary or stock tables):

 --Insert Portion INSERT INTO FinalTable ( Colums ) SELECT T.TempColumns FROM TempTable T WHERE ( SELECT 'Bam' FROM FinalTable F WHERE F.Key(s) = T.Key(s) ) IS NULL --Update Portion UPDATE FinalTable SET NonKeyColumn(s) = T.TempNonKeyColumn(s) FROM TempTable T WHERE FinalTable.Key(s) = T.Key(s) AND CHECKSUM(FinalTable.NonKeyColumn(s)) <> CHECKSUM(T.NonKeyColumn(s)) 

Answer 5

In addition to T-SQL-based solutions (and this is not even labeled sql / tsql ), you can use the SSIS data stream task with merge combining, as described here (and elsewhere ).

The most important part is the full outer join in the merge join (if you only want to insert / update, and not also delete the left outer join) of your sorted sources.

followed by conditional separation to find out what to do next: paste into the destination (which is also my source), update it (using the SQL command) or remove from it (again using the SQL command).

1. INSERT: if the guide is found only in the source (left)
2. UPDATE If gid exists both at source and destination
3. DELETE: if the guide is not found in the source but exists at the destination (right)

Answer 6

I usually prefer the SSIS engine to control delta merging. Only new items are updated and changed. If your target server does not have enough resources to manage a heavy request, this method allows you to use the resources of your SSIS server.

Answer 7

I would use the "slow resize" task