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In many cases, each company has its own database (or several databases), so I would estimate that there are about as many databases as there are companies.
If you are referring to the DBMS - the software that manages the databases - you can see a list of the most common ones in the following Wikipedia articles:
* Comparison of relational database management systems
* Comparison of object database management systems
* Comparison of object-relational database management systems
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∙ 9y ago
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How many simple data types are there?
There are a total of 8 simple or primitive data types in Java. They are:byteshortintfloatdoublebooleanlong andString
What types of data used in algorithm?
Whatever data you need. If you need the algorithm to operate with many different types of data, and you are programming in C++, you could use generic programming practices and use templates.
How many search techniqe's in data structure?
There are two types of searching technique used in data structure.such as linear and binary search.
Types of data in turbo C programming?
The primitive data types in C include:[signed|unsigned] char[signed|unsigned] short[signed|unsigned] int[signed|unsigned] long[signed|unsigned] long longfloatdoublelong doubleEnumerations (enum) and arrays may also be considered to be primitive types.
Why are there both primitive and object versions of integers doubles floats characters and booleans?
Primitive data types like int, float etc are available for us to perform primitive data type operations like addition, subtraction, comparison etc. But since Java is an object oriented language, there are many features in java where such primate data types cannot be used. Only objects can be used. So for using the features of such data types there also we have wrapper classes that would create objects for these primitive data types.
There are how many types of data's?
three
How visual data manager helps in creating a data base file in visual basics?
The Visual Data manager that ships with Visual Basic is a powerful tool for working with several types of databases inside the Visual Basic environment. One can create, edit, compact and repair many types of databases and other types of files. Here's how to use the Visual Data Manager in Visual Basic.
How many simple data types are there?
There are a total of 8 simple or primitive data types in Java. They are:byteshortintfloatdoublebooleanlong andString
What is it called when you repeat the same data in many tables in a data base?
duplication
How many types of chocolates are available in market?
1100
How many Guitar types are there?
3 types acoustic base and electric
How many data types supported by MySQL?
Data types supported by MySQL are date and time data, numeric data, and byte data. Spatial data is another type supported by MySQL which includes the use of spatial extensions.
Differrent data types in Visual Basic?
many
How many types data in computer system?
6
Quantitative data collection methods?
"There are many methods to collect data such as, interviews, meetings, observation, questionnaires and review internal documents.The above is incorrect, the statement above includes both qualitative and quantitative methods. "Quantitative research is about measuring a market and quantifying that measurement with data. Most often the data required relates to market size, market share, penetration, installed base and market growth rates.However, quantitative research can also be used to measure customer attitudes, satisfaction, commitment and a range of other useful market data that can be tracked over time.Quantitative methods include:Mail surveysStreet surveysTelephone surveysInternet surveysQualitative methods include:InterviewsFocus groupsObservation groupsShadowing
How many data types are there in PHP?
The data types are grouped into this categories: Booleans Integers Floating point numbers Strings Arrays Objects
How many types of call money market?
Just 1!
