Write Syntax for create table.

1 Answer

Answer :

Syntax of Create table:

CREATE TABLE table_name(

 column1 datatype (size),

 column2 datatype(size),

 column3 datatype(size),

 .....

columnNdatatype(size)

 );


Related questions

Description : Explain Domain constraints with Syntax and example. 

Last Answer : Domain constraints are used to maintain value according to user specification Domain constraints are: 1. Not null-such constraints are applied to an attribute when we have to specify that the ... datatype(size),attr2 datatype(size) constraint nameofconstraint check(attr<value)); or

Description : Write syntax to create view.

Last Answer : Create view as select OR CREATE VIEW name ASSELECT column1, column2.....FROM table_nameWHERE [condition];

Description : Choose the correct syntax to create an E_mail link. (a) -Technology

Last Answer : (b)

Description : An Assertion is a predicate expressing a condition we wish database to always satisfy. The correct syntax for Assertion is : (A) CREATE ASSERTION ‘ASSERTION Name’ CHECK ‘Predicate’ (B) CREATE ASSERTION ‘ASSERTION NAME’ (C) CREATE ASSERTION, CHECK Predicate (D) SELECT ASSERTION

Last Answer : (A) CREATE ASSERTION ‘ASSERTION Name’ CHECK ‘Predicate’ 

Description : What is the right access 2007 sql syntax for adding the last record of another table?

Last Answer : INSERT INTO samples (id_sample) SELECT Last(project.Id) AS LastOfId FROM project I tested this and it works. One nice thing about Access is you can use the graphical query designer to test your syntax. The ... View if you prefer text over the GUI. It will not run or save your query if errors exist

Description : To select all column from the table the syntax is: A) select all from table_name B) select * from table_name C) select from table_name D) Non of the above

Last Answer : B) select * from table_name

Description : What is function definition? (OR) what is user defined function? (OR) Write syntax of user defined function?

Last Answer : Function Definition : The program module that is written to achieve a specific task is called function definition. Syntax : type function-name(parameter list) // function header. { declaration of variables; body of function; // ... and b ); scanf( %d%d ,&a,&b); c=a+b; printf( %d ,c); }

Description : Write syntax to define a derived class

Last Answer : Syntax: class derived_class_name : visibility_mode/access_specifier base_class_name { class body };

Description : Write the syntax of switch case statement. 

Last Answer : switch(variable) { case value1: statements break; case value2: statements; break; . . . default: statements; break; }

Description : Define pointer. Write syntax for pointer declaration.

Last Answer : Definition: A pointer is a variable that stores memory address of another variable which is of similar data type.  Declaration: datatype *pointer_variable_name; 

Description : Write syntax and use of pow ()function of header file.

Last Answer : pow()- compute the power of a input value Syntax: double pow (double x, double y);

Description : Write syntax and example of : 1) drawRect() 2)drawOval()

Last Answer : 1)drawRect() : drawRect () method display an outlined rectangle. Syntax: void drawRect(int top,int left, int width,int height) The upper-left corner of the Rectangle is at top and left. The ... and height the following program draws several ellipses and circle. Example: g.drawOval(10,10,50,50);

Description : Write the syntax of try-catch-finally blocks.

Last Answer : try{ //Statements to be monitored for any exception } catch(ThrowableInstance1 obj) { //Statements to execute if this type of exception occurs } catch(ThrowableInstance2 obj2) { //Statements }finally{ //Statements which should be executed even if any exception happens }

Description : Write syntax for following commands: i)Sleep ii)Kill

Last Answer : i)sleep Syntax: sleep NUMBER[SUFFIX]… sleep OPTION ii) kill Syntax: kill pid

Description : Write the syntax of entity and architecture used in VHDL and explain it.

Last Answer : Entity declaration: It defines the names. Input output signals and modes of a hardware module. Also it provides the external interface of an entity. It is a black box view. Syntax ... _name of entity_ name  Architecture_ declaration_ name;  begin  Statement;  end architecture_ name;

Description : Explain various types of Relational constraints.

Last Answer : Relational Constraints Relational constraints are a set of rules. It is used to maintain the quality of information. Integrity constraints ensure that the data insertion, updating, and other ... - It establishes parent child relationship between two tables. For example :Foreign key constraints 

Description : Explain three level architecture of Database

Last Answer : There are following three levels or layers of DBMS architecture: External Level : Describes part of the database that a particular user group is interested in. Conceptual Level: Describes structure of ... is the one that concerns the way the data are physically stored on the hardware.

Description : Explain advantages of centralized and distributed databases.

Last Answer : Advantage of Centralized databases   * Data integrity is maximized -Data integrity is maximized and data redundancy is minimized because data is stored at a single place.  * Easier Database Administration - ... data is distributed, a group of users can easily share and use data of different sites

Description : Describe the three levels of data abstraction with diagram. 

Last Answer : Three levels of data abstraction are:  Physical level: This is the lowest level of data abstraction. It describes how data is actually stored in database. The complex data structure details ... highest level of data abstraction. This level describes the user interaction with database system.

Description : Describe object-oriented data models.

Last Answer : Object Oriented Model : Object oriented models were introduced to overcome the shortcomings of conventional models like Relational, Hierarchical and network model. An object-oriented database is collection of objects whose ... with other objects. It is also said to be semantic data model.

Description : Distinguish between file processing system and DBMS.

Last Answer : Database Management system File processing system 1. Presence of Self-describing nature of a database system and Metadata. 1. File processing don't contain any self describing feature and ... to use DBMS 5. Controlling Redundancy is one of most important feature to use DBMS

Description : State characteristics of Database.

Last Answer : The Characteristics of Database are: 1. Persistent Data 2. Meta Data and Self-describing nature of a DB 3. Insulation between programs and data (Data Independence) 4. Support ... Sharing of data and multiuser transaction processing 6. Access flexibility and Security. 7. Controlled Redundancy

Description : Define the term Foreign Key. 

Last Answer : A FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. It ... between tables because it references the primary key of another table, thereby establishing a link between them.

Description : Define the term Data Model.

Last Answer : Underlying structure of the database is called as data model. It is a collection of conceptual tools for describing data, data relationships, data semantics and consistency constraints. Data models define how data is connected to each other and how they are processed and stored inside the system.

Description : List types of Database languages.

Last Answer : Four types of database languages are: 1. DDL (Data Definition Language) 2. DML (Data Manipulation Language) 3. DDL (Data Control Language) 4. TCL (Transaction control language)

Description : Define the term Database Schema

Last Answer : The overall design of the database is called the database schema. A schema diagram displays only names of record types (entities) and names of data items (attributes) and does not show the relationships among the various files. 

Description : Describe centralized database system with example. 

Last Answer : Centralized Database System: 1. A centralized database consists of a single data server into which all data are stored and from which all data are retrieved. All the data reside at a single location and ... is cheaper than other types of databases as it requires less power and maintenance. 

Description : Explain client/server database system. 

Last Answer : 1. It has two logical parts client and server.  2. Computer networking allows some task to be executed on a server system and some tasks on client system. This leads to development ... as application server to receive and send requests from client machine to database server and vice versa.

Description : Compare file system and database system. 

Last Answer : File system Database system  1. File processing don't contain any self describing feature and neither posses metadata.  1. Presence of Self-describing nature of a database system and Metadata. ... own file.  5. Controlling Redundancy is one of most important feature to use DBMS

Description : Describe enhanced ER model with the help of example. 

Last Answer : Enhanced ER is a high-level data model that incorporates the extensions to the original ER model. It is created to design more accurate database schemas. EER reflects data properties and constraints more precisely ... example: Square, Circle, Triangle are the sub class of Shape super class. 

Description : Distinguish between network database model and relational database model. 

Last Answer : Network database model Relational database model Relationship between records is expressed in the form of pointers or links Relationship between records is represented by a relation that contains a key for ... logically in the form of rows and columns. Example:  Example: 

Description : List advantages of Normalization. 

Last Answer : List of Advantages of Normalization are the following: 1. More efficient data structure. 2. Avoid redundant fields or columns. 3. More flexible data structure i.e. we should be able to ... 7. Minimizes data duplication. 8. Close modeling of real world entities, processes and their relationships.

Description : Define database model. 

Last Answer : Definition of database model: A database model is a type of data model that determines the logical structure of a database. It also fundamentally determines in which manner data can be stored, organized and manipulated. 

Description : Define Database. List advantages of database system. 

Last Answer : A database is an organized collection of data so that it can be easily accessed, managed and updated. Advantages of database system are the following:  1. Controlling ... Providing Backup and Recovery facilities is provide by DBMS for recovering from hardware or software failures.

Description : Define Constraint. 

Last Answer : Constraints are the rules enforced on the data columns of a table. These are used to limit the type of data that can go into a table. This ensures the accuracy and reliability of the data in ... are applied only to one column, whereas the table level constraints are applied to the whole table. 

Description : Define Domain and Attribute. 

Last Answer : * Domain: All permissible values of attributes are called as a domain. * Attribute: is a property or characteristics of an entity set. 

Description : List DBMS softwares. 

Last Answer : List of DBMS software are the followings: i. Oracle RDBMS ii. IBM DB2 iii, Microsoft SQL Server iv. MySQL v. MS Access vi. SQLite vii. PostgreSQL viii. MongoDB ix. SQL Developer x. SAP Sybase SE 

Description : Explain distributed database system with example.

Last Answer : A distributed database is a database that consists of two or more files located in different sites either on the same network or on entirely different networks. Portions of the database ... Ignite, Apache Cassandra, Apache HBase, Couchbase Server, Amazon SimpleDB, Clusterpoint, and FoundationDB

Description : Explain Codd’s rules.

Last Answer : Codd rules:  Rule 1: The information rule a has to be presented to the user should be in the form of table.  Rule 2: Guaranteed Access Rule Whole data should be available or ... interface cannot be used to subvert the system, for example, bypassing a relational security or integrity constraint

Description : Explain merits and demerits of Object Oriented Database model.

Last Answer : Object oriented models were introduced to overcome the shortcomings of conventional models like Relational, Hierarchical and network model. An object-oriented database is collection of objects whose behavior, state, ... . * There is no view mechanism * There is no adequate security mechanism.

Description : Explain functional dependency with example.

Last Answer : A functional dependency occurs when one attribute in a relation uniquely determines another attribute. OR Consider a relation say R(X,Y), where X and Y are one or more than one attribute, ... sscper. That is, given rollno of a student, the name and sscper can be determined or searched.

Description : Differentiate between Hierarchical Database model and network database model.

Last Answer : Hierarchical Database Model  Network Model Network Model represents tree like structure with one root. Network Model represents tree like structure with many roots. Reflects 1:N ( ... the use of pointers Record relationship implementation is complex due to the use of pointers

Description : Explain different types of attribute with example and their symbols used in ER diagram.

Last Answer : Different types of attributes are: 1. Simple attribute: A simple attributes are those which cannot be subdivided. Eg:Rollno-  symbol 2. Composite attribute: a composite attribute is ... value can be calculated or determined from another attribute Eg: age from dateofbirth  Symbol

Description : Describe benefits and drawbook of denormalization.

Last Answer : Benefits of denormalization: * Reduce number of relations: It reduce the number of relations because it combines two relations into one new relation. * Reduce number of foreign keys: It reduce number ... : It is always application-specific and needs to be re-evaluated if the application changes. 

Description : Explain components of database in detail.

Last Answer : A database system involves four major components. 1. Data 2. Hardware 3. Software 4. Users

Description : Explain Generalization with example.

Last Answer : Generalization uses bottom-up approach where two or more lower level entities combine together to form a higher level new entity if they have common attributes in common. The new generalized entity can ... Example, STUDENT and FACULTY can be generalized to a higher level entity called PERSON

Description : Describe client server system with example.

Last Answer : Client server system consists of two logical components. One is Client and the other one is Server . Clients are those who send the request to perform a specific task to the server. ... client's CPU and memory. But server runs a database management system which manages the whole database.

Description : Explain three tier architecture of database with the help of diagram.

Last Answer : Application server or Web server *Adds intermediate layer between client and the database server *Runs application programs and stores business rules Clients contain GUI interfaces and ... GUI format. Thus the user interfaces, application rules and the database acts as three tier. 

Description : Define Normalization, list its types.

Last Answer : Normalization is a systematic approach of decomposing tables to eliminate data redundancy(repetition) and undesirable characteristics like Insertion, Update and Deletion Anomalies. It is a multi-step process that ... data from the relation tables. Types of Normalization are: 1NF,2NF,3NF,4NF,5NF

Description : Define Data and instance.

Last Answer : Data: Data can be defined as facts or information that can be recorded and have an implicit meaning.  Instance: The collection of information stored in the database at a particular moment is called an instance of the database.