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1. Who is one is not unary operation in relational algebra?
- A. Select
- B. Select
- C. Select
- D. Select
Answer: Option C
Explanation:
Procedural query language - 4 Relational algebra ব্যবহৃত হয়। এটি বিভিন্ন ভাগে ভাগ করা যায়।
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