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Information about a bank is about customers and their account. Customer has a name, address that consists of house number, area and city, and one or more phone numbers. Account has number, kinds and balance. We required to record customers who own an account. Account could be held individually or jointly. An account cannot exist without a customer.
Arrive at an E-R diagram. Clearly denotes attributes, keys, the cardinality ratios and participation constraints.
What sorts of tables one can se in designing the hierarchy of a LDB? Tables, which are having Foreign Key relations.
Write a short note on oracle Instance? Oracle Instances: An instance is the (executed) Oracle software and the memory they use. It is the instance which manipulates the data s
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Give some encryption techniques? A) DES B) AES C) Public key encryption
Data Scrubbing 70,000 records Project Description: We need services of a developer competent in data cleansing/Data scrubbing. Scope: - 70,000 records in CSV format.
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang
Explain cursors in SQL? Cursors in SQL - An object used to store the output of a query for row-through-row processing through the application programs. Cursors are constructs
joins
This language that enable user manipulate to or access data as organized by appropriate data model. Low level or Procedural DML : DML needs a user to specify what data ar
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