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How can you Start MySQL Server?
To start the mysql program type it is name in the command- line prompt. After starting mysql program just display
A welcome letter using the following Syntax:
% mysql
Welcome to the MySQL monitor. Commands end with; or \g.
MySQL connection id:18427 to server version: 3.23.51-log
Type 'help;' or '\h' for help.Type '\c' to clear the buffer-mysql>
Describe the types of attributes? Types of attributes: An attribute's category determines the type of values that are permitted in the attribute. For instance, the value vers
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
compare the features of oracle RDBMS with MySQL and Microsoft SQL server
Data Independence This brings us to our next topic: data independence. It is the property of the database which tries to make sure that if we make any change in any level of sc
basic structure of xml
Q. Explain data aggregatio n and discuss different design constraints. Sol. Aggregation One limitation of the E-R model is that it cannot express relationships amon
employee(empid,empname,dept,telno,mobno, add,sssno,tinno,WEdates,WEcomp,WEadd,WEpos,WEres) this is a employee record which is need to be normalize.the WE means work experience
Explain the concept of generalization and aggregation in E_R diagrams. Give one example for each one of them? Generalization: Consider extending the entity set account throug
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
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