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explain concept of decomposition?
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
ddlc
what is multivalued dependency
How can you map NULL values to other values while display? IF( ) , IFNULL( ) keywords are used to do so. They are 'LIMIT' is used for the following kinds of problems: 1) Ans
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
What is a block and a block number? A block is a contiguous sequence of sectors from a single track of one platter. Every request specifies the address on the disk to be refere
Explain what is DDL? DDL - Data Definition Language: statements used to define the database structure or schema. Some examples: CREATE - to create objects in the database ALT
Ask questApollo Hospitals (AH) is a popular medical service provider in Oman. AH wants to automate its business functions into an information system. The proposed information syst
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
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