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Which database level is closest to the users?
External database level is closest to the users.
A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
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
Control as State within Program 1. The term control exactly means to check effect of input within a program. For illustration, in Figure, after the ATM card is inserted (a
Example : Search the name, department number and salary of employees drawing minimum salary in that department. SELECT ENAME, SAL, DEPTNO FROM EMP WHERE SAL IN (SELECT MI
what is cascading rollback
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
What does Aggregation mean?
What is the function of SQL Server Agent Windows service? - It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
HOW TO SOLVE THE LP Problems by simplex method?z=x1+-3x2+2x3
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