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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.
What is the purpose of Algebra?
to be able to solve problems is the main purpose of studying algebra... :)
What is the difference between normalization and denormalization?
Normalizing data means eliminating redundant information from a table and organizing the data so that future changes to the table are easier. Denormalization means allowing redundancy in a table. The main benefit of denormalization is improved performance with simplified data retrieval and manipulation.
Printing 1111 2222 3333 4444 5555 this table using for loop from java?
public static void main(String[] args) { for(int i=1;i<5;i++) { for(int j=1;j<5;j++) { System.out.print(i); } System.out.println(); } }
Advantages of sql joins?
The main advantage of a join is that it executes faster. The performance increase might not be noticeable by the end user. However, because the columns are specifically named and indexed and optimized by the database engine, the retrieval time almost always will be faster than that of a subquery. There are also inner and outer joins, left and right joins, full joins and cross joins.
What is the building block of a relational database?
I think "TABLE" is the main building block of relational database
What are the main theories of a relational database approach to storing and accessing data?
The main theories of a relational database approach include the relational model, which organizes data into tables with rows and columns; normalization, which reduces data redundancy and improves data integrity; and SQL (Structured Query Language), which is used to interact with the database for querying and manipulation of data. These theories aim to ensure data consistency, provide flexibility in querying data, and allow for scalability in managing large volumes of data.
What is the main purpose for the periodic table?
It helps organize the unorginizable.
What is the main purpose of halite?
Halite's main purpose is table salt, tanning, and rock salt which is used for the road when its covered with ice.
Why is it necessary to store data in a database?
The main purpose of database is to mange the large bodies of information.Database is used to store interrelated data e.g. Student information
What are the main purpose of the tablenapkin?
The purpose of the tablenapkin is to protect the table. However in the victorian era it was used as a sign of wealth, creativity and personality.
What is the main purpose of Random Number Table to use as statistical tool in statistics?
To prevent bias
What are the differences between Microsoft Excel and Oracle Database?
Excel is a spreadsheet program. Oracle is for databases. Excel has some databasing capabilities, but it is not its main purpose.
What are the main function of a database system?
create the database
Can you make a relationship between two tables in a Database Management System DBMS?
Yes, a Database Management System's main advantage is that it will enforce relationships between tables in a database preventing you from entering data in one field in another table that does not already exist in another table. So for example if you have a database that tracks online purchase, the DBMS would prevent a product that does not already exist in the Products table from being added to a shopping cart table. Or an employee ID from being added to a timecard table that does not already exist in the employee table. Databases can be setup without enforced relationships, but doing so usually results in orphaned records (for instance, where and employee id exists in the timecard table that does not exist in the employee table.)
What is main purpose to use server?
The main purpose to use server is to access/retrieve data/information from a centralised database. it is also used to store the data/information which could be used in future. Servers could be dedicated or shared depending on the need.
What is remote data?
A remote data object is one that would be located on a different "node". For instance, a node the hardware where the operating system resides, which houses a database. Nodes have IP addresses and names. Say that the main database resided on node "Payroll" (10.128.132.10). Via a database link, an object from another node "Accounting" (10.128.142.11) is referenced. An example of this could be a view which pulls data from a table in the Payroll database and joins it to a table in the Accounting database and the view shows data from both nodes.
