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Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
Problem 1. Write the SQL queries using Data Manipulation Language (DML) statements. Insert values into student table with field names using insert command Display the
Why are cursors necessary in embedded SQL? A cursor is an object used to store the output of a query for row-by-row processing through the application programs. SQL statements
#floating point representation is used to store
What is a transaction ? The Transaction is a unit of data processing. For instance, many of the transactions at a bank may be withdrawal or deposit of money; transfer of money f
Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
prototype of a distributed information system for a national car part retail outlet chain.
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
Describe the two alternatives for specifying structural constraints on relationship kinds? Relationship kinds have certain constraints in which limit the possible combination o
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