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Disadvantages of logical data modelling?
1. Database may need completely redoing if a single field in one relational table has to be changed. 2. If an ERD is resolved incorrectly then it would have to be redone.
Advantages and disadvantages of data manipulation language in sql?
advantages of data manipulation language:1.the DML statements can modify the data stored in a database.2.user can specify what data is needed.3.dml tends to have many different flavours and capabilities between database vendors.4.it provides efficient human interaction with the system.disadvantages of data manipulation language:1.dml cannot be used to change the database structure.2.tables or columns cannot be created or deleted using dml.
What are advantages and disadvantages of circular queue over ordinary queue?
Circular queues are very efficient and work well with low level codes. Ordinary queues are the standard type of queue but they do not maximize memory data well.
What are the disadvantages of national integration?
Regionalismcommunilismreligious fanatsicmterroresmregional aspirations
What is the disadvantage of substitution of systems of equations?
If done properly there are no disadvantages.
What are the principles of data compression?
There are some basic principles of data compression. They include advantages, disadvantages, and the history of compression. Types of compression include BZip2 and LZMA.
Advantages and disadvantages of manual data processing?
disadvantages in data manual processing
Is built-in data-type are abstract data-types in java?
All built-in data types are not abstract data types.
What is datatype.Define various types of data types?
In c language data types are used to specify the tye of data.for ex:int a;It means "a" is a variable of type integer.There are two types of data types in c.They areprimary data typessecondary data typesprimary data types are the built in data types and secondary data types are the user defined data types.eg for primary data types are int,float,char,long,double..and for secondary are arrays,structures,pointers,unions..
What are disadvantages of a histogram?
it has a limitedamount of data
What are the different data types?
Theres two types of data, Continuous and discontinuous data.
What are the subject-matters of data structure?
types of data structure types of data structure
Why do you need data types?
Data types specify which types of data that an object or variable can hold. Without data types, it would be impossible to make sure that an application functions properly.
Disadvantages of a paper-based database?
Paper-based databases are prone to errors due to manual data entry and can be easily lost or damaged. They are also difficult to scale and not as efficient as digital databases for searching and sharing information. Additionally, paper-based databases require physical storage space and are not environmentally friendly.
The advantages and disadvantages of primary data?
Advantages and Disadvantages of primary data are: Advantages 1. Data is basic 2. Unbiased information 3. Original data 4. Data from the primary market/ population 5. Data direct from the population. Disadvantages. 1. Large volume of data. 2. Huge volume of population. 3. Time consuming 4. Direct and personal intervention has to be there. 5. Raw data.
What are the different types of data?
Types of data types :Primitive data typeUser-defined data typeDerived Data typePrimitive data type:int,char,float,double,voidUser-Defined data type:class,enumeration,structure,unionDerived Data type:Arrays,Functions,Pointers.
Disadvantages of data redundancy?
Data redundancy can lead to storage inefficiency, as the same information is stored multiple times. It can also increase the risk of inconsistencies or errors in the data, as updates may not be made consistently across all duplicates. Additionally, data redundancy can make data management and maintenance more complex and time-consuming.
