Salesforce.com Learn & Share
41. Describe the difference between homogeneous and heterogeneous distributed database? A homogenous database is one that uses the same DBMS at each node. A heterogeneous database is one that may have a different DBMS at each node. (117)
Read More31. What is Index? An index is a physical structure containing pointers to the data. (123)
Read More21. What is 5NF? A table is in fifth normal form (5NF) or Project-Join Normal Form (PJNF) if it is in 4NF and it cannot have a lossless decomposition into any number of smaller tables. (170)
Read More11. What is DML (Data Manipulation Language)? This language that enable user to access or manipulate data as organised by appropriate data model. Procedural DML or Low level: DML requires a user to specify what data are needed and how…
Read More1. What is database? A database is a collection of information that is organized. So that it can easily be accessed, managed, and updated. (132)
Read More41. Describe the difference between homogeneous and heterogeneous distributed database? A homogenous database is one that uses the same DBMS at each node. A heterogeneous database is one that may have a different DBMS at each node. (126)
Read More31. What is Index? An index is a physical structure containing pointers to the data. (124)
Read More21. What is 5NF? A table is in fifth normal form (5NF) or Project-Join Normal Form (PJNF) if it is in 4NF and it cannot have a lossless decomposition into any number of smaller tables. (163)
Read More11. What is DML (Data Manipulation Language)? This language that enable user to access or manipulate data as organised by appropriate data model. Procedural DML or Low level: DML requires a user to specify what data are needed and how…
Read More1. What is database? A database is a collection of information that is organized. So that it can easily be accessed, managed, and updated. (133)
Read More