<ul><li>The SQL SERVER database table stores personnel records from multiple sources.</li><li>Requirement: Add personnel number 'no' as a calculation column, find duplicate records, and assign an independent 'no' to each set of duplicate records.</li><li>SPL code provided to query the database through JDBC, add a new 'no' column, and use an infinite loop to traverse and adjust the 'no' column.</li><li>The algorithm compares records and synchronizes the 'no' if they are considered duplicates, taking the smaller one between them.</li></ul>

SQL: Multi field mixed deduplication followed by numbering #eg81

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