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How Can I Optimize Bulk Insertion into Oracle from .NET for Large Datasets?

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Release: 2024-12-31 19:29:10
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How Can I Optimize Bulk Insertion into Oracle from .NET for Large Datasets?

Bulk Insertion Optimization in Oracle using .NET

When dealing with large datasets, traditional row-by-row insertions can be time-consuming. For efficient bulk insertion into Oracle using .NET, consider the following method:

Array Binding with Oracle Data Provider for .NET (ODP.NET)

ODP.NET offers array binding capabilities that significantly improve bulk insert performance. Here's how it works:

  1. Define a Stored Procedure: Create a stored procedure with parameters that map to the data you wish to insert. For instance, for a Students table with columns Name, Age, and Address, you could define a procedure like InsertStudent(IN Name VARCHAR2, IN Age INTEGER, IN Address VARCHAR2).
  2. Prepare Parameter Arrays: Prepare arrays of parameter values in your .NET code. Each array should correspond to one of the stored procedure parameters, e.g., NameArray, AgeArray, AddressArray.
  3. Create OracleCommand: Create an OracleCommand object that references the stored procedure and binds the parameter arrays. To do this, use the ArrayBindCount property to specify how many rows of data to bind in each parameter array.
  4. Execute Command: Execute the OracleCommand to perform the bulk insert.

This method leverages the bulk processing capabilities of Oracle, reducing network calls and improving throughput. It's a highly effective solution for importing large datasets efficiently.

Performance Comparison

In the provided scenario, where 160K records need to be inserted, array binding with ODP.NET can dramatically reduce processing time. Users report achieving insertion times of 15 seconds for 50,000 records compared to the original 25 minutes using row-by-row insertion. This significant speedup highlights the benefits of this optimization technique.

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