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What are various search techniques in cobol? Explain.
Answer Posted / Shabnam Parween
COBOL offers several search techniques to access and manipulate data:
1. Linear Search (SEARCH): Linear search traverses the entire array or list to find a specific element. It is simple but inefficient for large datasets.
2. Binary Search (IS-REACHED): Binary search reduces the search space by repeatedly dividing the dataset in half, making it faster than linear search for sorted arrays. However, it requires the array to be sorted beforehand.
3. Hash Table Search: A hash table stores data in an array using a hashing function that converts key values into indices. The average search time is constant, making this method efficient for large datasets.
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