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Question: Describe briefly the three parts of the Relational Model. (a) The term integrity refers to the accuracy or correctness of the data in the database. Define the fol
What do you mean by persistence? How you will make your data persistent? Persistent data is the data, which has a longer lifetime than program which has created it. Enabling th
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
I need help with some assignments
Some disadvantages of File Oriented System ?
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
er diagram of sport
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
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
" Wound-wait" scheme : It is based on a preemptive method. It is based on a simple rule: If Ti requests a database resource that is held by Tj
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