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Editorial Team
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Asked: 2026-05-28T18:41:08+00:00

I need to load data from different remote database into our own database. I

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I need to load data from different remote database into our own database. I write a single “complex” query using WITH statement. It is around 18 Million rows of data.

What is most efficient way to do the insert?

  1. using cursor insert one by one
  2. using INSERT INTO

or is there any other way?

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1 Answer

  1. Editorial Team

    The fastest way to do anything should be to use a single SQL statement. The next most efficient approach is to use a cursor doing BULK COLLECT operations to minimize context shifts between the SQL and PL/SQL engines. The least efficient approach is to use a cursor and process the data row-by-row.

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