Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is the purpose of tables, private synonyms and public synonyms? If there are multiple objects of similar name on an Oracle database, that order are they accessed in?
The reason of table is to store data. If we use the PUBLIC keyword (or no keyword at all), anyone who has access to the database can use our synonym. If the database is not ANSI-compliant, a user does not require to know the name of the owner of a public synonym. Any synonym in a database which is not ANSI-compliant and was formed in an Informix database server is a public synonym. In an ANSI-compliant database, all synonyms are private. If you use the PUBLIC or PRIVATE keywords than the database server issues a syntax error. If you use the PRIVATE keyword to declare a synonym in a database which is not ANSI-compliant, the unqualified synonym can be used through its owner. Other users must qualify the synonym along with the name of the owner.
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Describe Object Relational model ? Object Relational Model - This model combines the characteristics of both relational model and object oriented model. It extends the tradit
sql is relationally complete-justify
Explain the Query Processing Data Query Processing permits a user to report or analyze structured and unstructured data pulled from multiple data sources.
Consider employee (e_no, e_name, e_salary, d_code), dept (d_code, d_name) and dependent (depndt_name, e_no, relation). Show the names of employees in purchase and accounts departm
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
Ask Write the SQL code that will create the table structure for a table named EMP _1. This table is a subset of the EMPLOYEE table. The basic EMP_1 table structure is summarized in
What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
how the string works as keyword?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd