Answer / Renu Grover

In most RDBMS (Relational Database Management Systems), image data is typically stored in BLOB or VARBINARY fields and cannot be compared directly like strings or numbers. However, you can compare images using specific functions provided by the database system such as hash functions for comparison of file checksums, or similarity measures for image content analysis.nnAs for using an image column in a join clause, it's not recommended because BLOB/VARBINARY fields are usually large and the comparison can be slow. It's more efficient to compare primary keys or other string-based identifiers.

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