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Write Relational algebra expressions for the given queries.(i) List the employee numbers, employee names and their manager numbers working in several branches who earn more than $ 30000. (ii) List the details of Spares available in several Branches supplied by the vendor Rock-Hard company.
Case x, z difference, which is preferable, why? CASEZ : Special version of case statement that uses a Z logic value to signify don't-care bits. CASEX : Special
Q. What is Presentation layer? Presentation layer: When two hosts are communicating with each other they might use different coding standards and character sets for represent
Bugzilla can dramatically enhance the productivity and accountability of individual employees by giving a documented workflow and positive feedback for good performance.
Identify the type of cohesion in the following statements: 1. Compute average daily temperatures at various sites 2. Initialize sums and open files 3. Create new temperature rec
Explain Direct broadcast & limited broadcast. Broadcast is a method to send a packet to all the stat ions on an exact network at once. Broadcast systems permit the possibility
Find the minimum SOP and POS expression for the following functions using Karnaugh Map and realize the expression using appropriate gates. Also realize SOP form using NAND-to-NAND
Define the Pulse-Triggered (Master-Slave) Flip-flops? The term pulse-triggered signify that data are entered into the flip-flop on the rising edge of the clock pulse, though th
Expalin the History Of Parallel Computers The researches with and implementations of use of the parallelism started long back in the 1950's by IBM Corporation. The IBM STRETCH
Describe the additional characteristics needed for an e-commerce server? E-commerce services need dynamic configuration abilities and seasonal and every day service configurat
Operations of the Web mainly depend on hypertext as its means of interacting with users. But what is hypertext? Hypertext as such is the same as regular text that is it can be read
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