We need to write up code to performĭata comparisons and then further insert and update accordingly.Ĭould we use the SSIS package in this case? How do we meet the requirement? We can use the T-SQL code for specific conditions, but it is a complicated task. You execute the SSIS package, and it should perform the update only for BookID 1. SSIS package should not update remaining unchanged rows in the destination. In this condition, we want to update the specific row as well in theĭestination. If there is any change in the existing data in the source table, it should also get updated in the destination Now, once we execute the SSIS package, it should only insertĬondition 3: Update relevant records in the destination table The destination table contains the previous 6 rows. In the following table, we inserted BookID 7.
The source table gets a new entry in the dbo.books table. SSIS package should only insert the new record into the destination table. If there is already a book entry in the destination table and a new entry is made into the source table, the If you execute the SSIS package, the destination table should contain the following records.Ĭondition 2: Insert only new records in the destination table (dbo.books), the SSIS package should copy the contents. If the destination table (dbo.bookshistory) table does not contain the records similar to the source table We want to copy the contents of this table to another destination table dbo.bookshistory, and we have the followingĬondition 1: Insert all records if it does not present in the destination Suppose you have a dbo.books table and it contains the following entry. Let’s go ahead and see Lookup Transformation in action.īefore we start understanding Lookup Transformation in SSIS, let’s understand the situation in which it can be
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