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Explain the term- Query.
Queries are used to repossess and show specific records in a table. They can also be used to show specific fields of specific records, which meet the condition specified. A query displays a subset of all or exact fields and records in a table. When a change is made to the data, which is shown by the query, this change is reflected in the table also. Because of this dynamic relationship among the query and the tables, the subset of the data displayed by the query is called a Dynaset.
Explain Recursive relationship type? Recursive relationship type: A recursive relationship is one in that the similar entity participates more than once in the relationship
What is self-transition? If there is a transition which goes back to same state, it is known as "self- transition." With a trigger action exit action would be executed f
Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:
What is recursion? Is it possible for a stored procedure to call itself or recursive stored procedure? How many levels of SP nesting is possible? Recursion is method of proble
Describe the storage structure of indexed sequential files and their access method. Ans: Index offers a lookup capability to rapidly reach the vicinity of the desired record.
Can your organization scan large format documents? Yes, large format scanning used for such entities as city plans and blueprints is available. We selected scanners with the ab
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Have database built but having problems with some questions that go with the database
Describe the tools that are available for managing MySQL Server. Given below are the tools to manage MySQL server: mysqld - MySQL server daemon. This is used to begain t
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