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What is the purpose of using joins in database is normalization the only purpose of it?
The purpose of using Normalization is to avoid the data redundancy in tables. The normalized schema is much faster in performance so you can get a quick response from the database.
OLTP database designers follow the Normalization rules but the tables in Data warehousing(OLAP) data bases are in the De normalized form, they won't follow the Normalization technique. For this reason we are using more complex queries in Data warehouses which uses more system resources.
Some one might explain you better way.........
Thanks
Blueberry
What else can I help you with?
How can I use Oracletoaccess to retrieve data from the database efficiently?
To efficiently retrieve data from a database using Oracle, you can optimize your queries by using indexes, limiting the columns selected, and avoiding unnecessary joins. Additionally, consider using bind variables and tuning the database performance settings for better efficiency.
Database Design?
form_title=Database Design form_header=Transform your company by incorporating a new database design. What program will the database be used with?=_ Please explain what you will be using the database for?="" Do you have a database that you're already using?= () Yes () No
What is the difference between data model and database model?
A database is a collection of tables that is used for some purpose (typically an application of some sort). A database model is a description of that database, and describes how the tables relate to each other. Typically, a model is designed first, then the actual database is implemented using the model as a blueprint.
Database?
form_title=Database Design form_header=Transform your company by incorporating a new database design. What program will the database be used with?=_ Please explain what you will be using the database for?="" Do you have a database that you're already using?= () Yes () No
What software tool can be used to create a database add change and delete data in the database sort and retrieve data and create forms and reports using the data in the database?
datebase management system
How can I use Oracletoaccess to retrieve data from the database efficiently?
To efficiently retrieve data from a database using Oracle, you can optimize your queries by using indexes, limiting the columns selected, and avoiding unnecessary joins. Additionally, consider using bind variables and tuning the database performance settings for better efficiency.
Normalization form in details in points and examples?
Normalization is a process to reduce redundancy. By using normalization we can easily remove duplicate entries..
What is the purpose of using a business database software?
A business database software is designed to offer an organized mechanism of storing, managing, and retrieving information over the web. For above purpose, using a business database software is an easy and simple way to organize everything.
For the purpose of DSN we have to specify a database name so how do we give a name to a database?
The same you would to any other file. Consider the purpose of your database, what you are using it for, what data you are compiling. Think about what product you are producing, what the central idea of the file is. That is your name.
What are the benefits of using a Relational Database?
Relational databases offer structured data storage, data integrity through constraints like foreign keys, efficient querying using SQL, and support for complex data relationships through normalization.
What is normalisation in GIS?
Database normalization is the process of organizing the fields and tables of a relational database to minimize redundancy and dependency. Normalization usually involves dividing large tables into smaller (and less redundant) tables and defining relationships between them. The objective is to isolate data so that additions, deletions, and modifications of a field can be made in just one table and then propagated through the rest of the database using the defined relationships.Database normalization saves storage space and makes the data easier to index and analyse. Querying highly normalized relational databases can become quite complex since a large number of tables may need to be linked together.
What can be achieved from the database using forms?
what can be achieved from the database using reports
Is the relational database an example of oracle database?
A relational database is a type of database design. Oracle is a brand of database. You can create a relational database using Oracle. You can also create relational databases using other database applications.
Can you create a database with only a form?
Yes , you can create a database using a form . But you have to do two things First make a form in html or jsp whatever you like. Then Connect the form to database using java database connectivity.Yes, we can create database with a form. First create a form using html or jsp then we can connect it to database using JDBC.
Database Design?
form_title=Database Design form_header=Transform your company by incorporating a new database design. What program will the database be used with?=_ Please explain what you will be using the database for?="" Do you have a database that you're already using?= () Yes () No
In a Database Management System what are joins?
A Database Management System or DBMS is compromised of many related tables of data. Tables are simply two dimentional (rows and columns) of data, similar to a spreadsheet. Joins are used to combine tables of data based on related columns within those tables. By using JOINS, a database becomes multi-dementional. Joins are simply a structured way to combine related data in different tables within the database system. Example an employee table might contain the following fields: EmployeeID (the Primary Key) LastName, FirstName, MiddleName, HireDate, DepartmentID (a foreign key to the Department table) Manager_EmployeeID (a foreign key relating back to a different employee record in the employee table) Department Table: DepartmentID, DepartmentName, DepartmentManager_EmployeeID (Foriegn Key relating to the employee table) In the Employee sample table, the EmployeeID serves as the primary key, which uniquely identifies the entire row of data. Joins for the Employee table would typically be done on related tables, such as the Department table via the DepartmentID, or even back on the Employee table itself using the Manager_EmployeeID, relating the EmployeeID to the Manager_EmployeeID. If the EmployeeID is in another table as a foreign key then joins can also be done to those tables as well.
How do you connect to a database and table using ADODB?
How do you connect to a database and table using ADODB?
