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List the string operations supported by SQL?
1) Pattern matching Operation
2) Concatenation
3) Extracting character strings
4) Converting among uppercase and lower case letters.
what are the limitations of dbms?
What is Relational Algebra? Relational algebra is a Procedural query Language?
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
Haw does it work one database application
In object oriented design, which steps must designer take to adjust inheritance? To readjust inheritance following steps should be taken: i) Rearrange and adjust the classe
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
data models are being replaced over years. Reasons and why does that happen?
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
Problem: You are given the following schema 1. Flights(flno, from, to, distance) 2. Aircraft(aid, flno, aname, cruisingRange) 3. Certified(eid, aid) 4. Employees(eid, ena
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