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What else can I help you with?
What is the fingerprint database called?
I would assume it was a relational database.. I also assume you mean the fingerprint database that is used by the police forces. as far as i am aware it is a relational database. I think because you could query either a name or a fingerprint reading and then get the information relating to it..Example: If you were looking for the name to a set of fingerprints, you would enter the finger print into your query, and then you might get a name if it is in the database, and if you were looking for the fingerprints to a guy, you would enter a name and you might get the fingerprints for him if you have the right name and it is contained within the database.
Which SQL command would you use to retrieve a record or records from the database?
SELECT FROM clause Eg: SELECT <select_options> FROM <table_name> [ WHERE <condition> ]
Is a unique identifier also called a record key?
The normal term would be a primary key, not a record key.
How do database Record and Field relate to each other?
A database record can be considered as one row of data from a table whereas each piece of information in it is a field.Let me explain with an exampleconsider the below table.Emp name Emp num Age CityAAA 101 28 CharlotteBBB 102 35 NewyorkIn the above table one row of information about the employee AAA is a record and the fields are employee name, number, age and city.
Why would you choose a database system instead of simply storing data in operating system files When would it make sense not to use a database system?
A database system provides structured data storage, efficient retrieval, data integrity, and concurrent access control that are not available with OS files. It is suitable when data needs to be queried, updated frequently, and maintained consistently across multiple users or applications. Using OS files might be more appropriate for storing small, non-relational datasets that do not require complex querying or transactional support.
Is relational database better than manual database?
It really depends on the purpose of the database. For some function relational would be better, for some manual would be. You might want to research the application you wish to incorporate.
Is Excel an example of a relational database?
No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.
Which database type would allow the widest variety of queries?
Answerpages591-599 ==A. Relational
When would you want to use a relational database?
The word 'relational' in an RDBMS stands for relationships between tables (parent and child). So whenever you have information that can benefit from such a feature you would use relational database. For example, a customer places many orders and each order has items. This type of real world scenario is better represented in a database than in a spreadsheet for example.
Which type of application would teachers use to keep class records and produce grade sheets?
A spreadsheet or a relational database.
How would you describe a relational database?
Most modern databases are relational, meaning that data are stored in tables, consisting of rows and columns, and that data in different tables are related by the meanings of certain common columns.
Can you think of a one-to-one relationship in a relational database.give an example?
As part of an Employee database you could have a table with their personal details and a table with their salary details. On each of these tables there would be one record for each person and they would be related to each other. This would be a one-to-one relationship.
Why you would create a database?
Database is created to keep a systematic record of data of a particular field.
What is the fingerprint database called?
I would assume it was a relational database.. I also assume you mean the fingerprint database that is used by the police forces. as far as i am aware it is a relational database. I think because you could query either a name or a fingerprint reading and then get the information relating to it..Example: If you were looking for the name to a set of fingerprints, you would enter the finger print into your query, and then you might get a name if it is in the database, and if you were looking for the fingerprints to a guy, you would enter a name and you might get the fingerprints for him if you have the right name and it is contained within the database.
Why not allow database programmers to write directly in relational algebra instead of sql?
I would guess the SQL language was considered to be simpler for the programmer.
Which database is most suitable for small and large organization rational or object?
There is ONLY one type of database that is underlain by sound mathematical theory (Relational Calculus/Algebra see related link below) by means of which you can prove theoretically that the database works and that operations across it are true and valid. That database is the Relational Database. It would be incorrect for an organization to trust its data to ANY database that was not provably correct (if something was to go wrong the directors could be sued for choosing a database where they could not prove it was sound). Therefore the choice would have to be to place the company data into a Relational Database. An object oriented database could be used ONLY if it was implemented in/on a underlying Relational Database engine/platform (which is possible). Further, while object databases have acquired a niche in application areas such as engineering and spatial databases, telecommunications, high energy physics, molecular biology, in embedded use in devices and in real-time systems (where the requirement for data storage and retrieval is constrained to specific, narrow tasks and where speed is essential, I know of no implementation where an object database is used for corporate/business information.
What courses are offered for MCITP training?
There are a number of courses available for MCITP training , but a few examples would be database developer, database administrator, and consumer support technician.
