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Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company.
SELECT EMPLOYEE_NAME, COMPANYNAMEFROM WORKSORDER BY COMPANYNAME, EMPLOYEE_NAME DESC;
Explain data independence ? Data independence is the capacity to modify the schema at one stage of a database system without having to change the schema at the further level.
what is Nested relational model? Explain with examples.
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
Un-Normalized Form (UNF) If a table having non-atomic values at every row, it is said to be in UNF. An atomic value is something that cannot be further decomposed. A non-atomic
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
how to implement hyrise in C plus plus
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
please give me introduction to full data in D B M S in a short assignment
Design a generalization–specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attrib
waht is a repeating group?
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