Store PDF files in DB2 BLOB

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DB2 BLOB Type Overview

  • SMALLBLOB: Up to 512 KB
  • BLOB: Up to 4 GB
  • LONGBLOB: Up to 16 EB (recommended for large PDF files)

Step-by-Step Implementation

Method 1: Manual SQL Statements

1. Create Table with BLOB Field

CREATE TABLE pdf_storage (
    id INT PRIMARY KEY,
    pdf_name VARCHAR(255),
    pdf_data BLOB
);

2. Insert PDF Binary Data

INSERT INTO pdf_storage (id, pdf_name, pdf_data)
VALUES (1, 'sample.pdf', BLOB('path/to/local/sample.pdf'));

3. Retrieve PDF from BLOB Field

SELECT pdf_data FROM pdf_storage WHERE id = 1;

Method 2: Using DBBlobEditor (Optional Visual Tool)

For simplified operation, DBBlobEditor supports one-click import of PDF files to DB2 BLOB fields, auto-validates field type compatibility, and enables batch processing of multiple PDF files.

DB2 BLOB Issues & Solutions

  • Indexing BLOB fields: Avoid indexing large BLOB fields to improve performance
  • Large PDF storage: Use LONGBLOB and enable chunked storage

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