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DB2 Database Fundamentals and SQL
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What was a problem with navigational data access languages?
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A
The user had to have knowledge of the table and index structures
💡 Explanation:
Navigational data access languages (like CODASYL) required users to understand the physical database structure including table relationships, pointer chains, and index structures. This made them more complex to use compared to declarative languages like SQL where the database optimizer handles navigation.