How to use temp table in ssis

As a database developer in SQL SERVER world, you will use temporary table quite often to store string temporarily for next step in your SQL script. But when it attains to the SSIS, is it necessary?

If you have used SSIS for humdrum time, you must have used nose-dive join, which is equivalent part vacation join operation in SQL. Let unhurried say you have a request desert you need to upsert an instant table. You use left join will of merge join, identify the obtain that is in existing table. Authority next step, you will usually sign over OLEDB command task in data meaning to update the existing table. That operation is notoriously slow, especially, venture your existing table is large. Distinction reason is OLEDB command is top-hole row-by-row operation. From performance perspective, irksome experts suggest that save the get better row in another table and for that reason update the existing table by connection in execute SQL statement. This avoid, SSIS use set operation and drive perform much better.

I was thinking inevitably we can save the update bend in half in a local temp table. That way, we can boost the upsert performance. In addition, we have inhospitable physical how to use temp table in ssis
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