What are the principles of database development?
The main principles of database development is to create user friendly computer applications with excellent quality. Database design is useful in many different ways and areas.
What drivers are needed to setup a database with ODBC?
Alongside dedicated ODBC drivers, a JDCB driver is usually required. This enables a bridge to the ODBC driver, enabling the database to connect to its target.
What are the disadvantages of normalizing a table in a database?
All databases tend to be normalized to some degree; in fact, a relational database almost must adhere to a minimum of 1NF to be useful. However, the more a database is normalized, the greater the impact of processing time of queries is likely to be. For one thing, higher levels of normalization results in larger numbers of decode tables and the like, requiring more table joins in retrieval queries and more referential integrity overhead.
What are properties of a primary key?
The properties of primary key are as follows:
1. It should be unique.
2. It should be not null.
Why server security is very important?
To ensure the security of your server always protect your computers by having backup of important data and protect your network from infiltration by subscribing to network security.
Location of your server also matters a lot, so keep your server safely in a room that is far away from the public view.
Changing passwords at least twice a week is a good step towards ensuring server security.
Have the server with a good firewall that can act as a powerful weapon to detect hacking attempts and notify you of any impending threat.
Server security can also be maintained by providing least privileges to ensure that no one accesses for mischievous purposes.
You can maintain a transaction log file to identify who did the changes in this time etc.
Today, there are numerous server security available online that can be used to perform standard and advanced audit of the system to keep it clean and free from hacking threats.
How do you convert many to many to one to many in database?
The way a many to many relationship is done is by inserting a junction table and having two one to many relationships with the primary key of each of the two main tables becoming a join primary key of the junction table.
Why would a hospital use a query in the patients database?
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
For a huge amount of reasons. They may want queries to list all patients, or patients who have an appointment on a particular day, or all the patients who are associated with a particular doctor or all the patients who have a particular illness or all the patients within a particular age range and so on. So a hospital would make extensive uses of databases with patient details.
Do you already know the correct answer to a hypothesis before you being collecting data?
Typically, no. While a researcher might anticipate a particular result, the hypothesis is only that - what the expected result might be (and often, there may be several possible expected results or even none.)
What is the advantage of bcNF over 3NF?
The primary advantage of Boyce-Codd Normal Form (BCNF) over Third Normal Form (3NF) is that BCNF addresses certain types of redundancy that can still exist in 3NF. Specifically, BCNF eliminates anomalies that arise from functional dependencies where a non-candidate key determines a candidate key. This ensures a higher degree of normalization, reducing the potential for update, insertion, and deletion anomalies, leading to a more robust database design. Thus, BCNF provides a stricter framework for ensuring data integrity and minimizing redundancy.
What are the disadvantages of paint. NET?
paint.NET doesn't have as many filters as photoshop, and doesn't have as big a community to provide brushes, patterns, plugins, etc.
Can a relational database support one to one?
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
Yes. A one to one relationship is one of the types of relationships a relational database can have.
What does the primary key in a data base do?
We know that primary key is the one that is not null and is always unique. A primary key uniquely identifies a record in a table.
We have database to store data in to it. We prefer to have database over FPS because they handle the data efficiently.
What is a special-purpose database?
A special purpose software is one which is specifically designed for a particular user. Example of general purpose software are like a bank account managing software .
Does foreign key alllows null values and duplicate values?
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
A foreign can have null values and it can have duplicate values.
What is attribute in database management?
A relational database matches data by using common characteristics found within ... do this grouping is called a relational database management system (RDBMS). ...A relation is defined as a set of tuples that have the same attributes. ...
Which part of a relational database contains the logical structure for the information?
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
The tables do. There must be at least two of them for a relational database.
Media Access Control address.
This is the hardware/vendor set address of a Network Interface Card. The format is xx:xx:xx:xx:xx:xx With the first 3 hexadecimal digits specifying the manufacturer.
Network routers and switches use this address to control traffic to a Network Interface card, it is often tied to a user assigned IP Address (b.b.b.b, 4 octets, usually decimal, 0-255 each).
What are main reasons for slow development of a project?
If a project implementation is not moving as it is expected, or you are not meeting the expected date of completion, you could look into your plan see what were the foreseable barriers you have identified during the planning stage of the project. Usually, this question can be answered as well as identified if it had been forecasted during the planning stage. If not, then it is time to sit down again, identify the factors that contribute to slowing down of the project's development and address it. It may also be helpful to look unto the plan again and try to forecast the problems that may arise during each stage f the project implementation process. When this is accomplished, then it will also be helpful that a solution be formulated for every possible problems the project may face during its actual implementation.
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Is data duplication is a desirable aspect of a database?
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
No it is not. A well designed database will have no duplication. Duplication of data takes up more space. It can also lead to inconsistencies in the data. If the same data is there more than once, it can sometimes that not all copies of it are changed when they have to be. So for example, you could have a person listed twice in a database. If they got a new phone number and this was only changed in one of the entries for them on the database, you would now have the same person listed twice, but with each having a different phone number. If they are on the system once only, then there cannot be those kinds of inconsistencies.
How do you draw SRS for Grade Card Generation System?
To be able to draw SRS for Grade Card Generation System you can possibly do so by throwing out and redrawing any number of cards from 0 to all throwing out and redrawing any number of cards from zero to a whole hand
Why relational database approach is better than earlier method?
Relational model helps in logical relation between two dimensional tables . It maintains data integrity and eliminates data redundancy. Earlier methods involved redundant set of data for maintaining relations between set of data.