Handling LONG/BLOB data
 
 
- What makes LONG / BLOB / MEMO data special?
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- Not practical to pre-allocate fixed size buffers for worst case
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- Fetching LONGs - treat as normal fields after setting:
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- $dbh->{LongReadLen} - buffer size to allocate for expected data
- $dbh->{LongTruncOk} - should truncating-to-fit be allowed
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- Inserting LONGs
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- The limitations of string literals
- The benefits of placeholders
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- Chunking / Piecewise processing not supported
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- So you're limited to available memory
- Some drivers support blob_read()and other private method