Ssis package not updating database

If there is a match, the incoming record is sent to the match output.If there is no match, Lookup generates an error by default but it can also be configured to send the data to the no match output.This can be done using an sql command like this: --update dimension rows Update D Set Property1=U. Merge Statement SQL Server 2008 came up with a new Merge command that can automatically insert or update records in the destination table in a single statement.This option is more described in this MSDN BOL article: Using MERGE in Integration Services Packages That’s all I learned when I wrote an ETL for a data warehouse.Slowly Changing Dimension transformation This is a nice built-in method that starts a wizard and finally generates a dataflow similar to the one we saw in the first approach if we choose options in the wizard that represent Type 1 SCD with changing attributes.So this option could be regarded as a more maintainable way of approach 1 since it generates all the related data flow components automatically.There are some more considerations that will be described later on.

Please have your thoughts propagated using the comments section below.

Handling updates in SQL Server Integration Services isn’t straight forward.

If you have developed an ETL (Extract Transform Load) process for a Data Warehouse, then you may have faced a situation where you needed to update existing records.

Staging Update Table This approach gives greater scalablity, maintainablity and flexibility.

This option requires us to create a staging table in the database and fill that table with the rows that that already exist in the target table.

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Also, this method uses a single update query for every matched record and so is not a good choice if the records to be updated are higher in number.

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