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Heap files (unordered file)
Mostly these files are unordered files. It is the easiest and most basic type. These files having of randomly ordered records. The records will have no exacting order. The operations we can do on the records are retrieve, insert and delete. The types of the heap file or the pile file Organisation are:
Explain the following functions of Oracle with suitable examples: (i) To_Char( ) (ii) Count( ) (iii) Trim( ) (iv) Length( ) Ans: (i) To_char( ): The TO_CHAR function conver
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how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
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What is multiple relationship ?
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
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