Prepare 4 interview - Recent questions tagged dbms

What are CODD rules?

Wed, 23 Jun 2010 13:28:25 +0000

What is difference between DBMS and RDBMS?

Wed, 23 Jun 2010 13:27:49 +0000

What is database or database management systems (DBMS)?

Wed, 23 Jun 2010 13:26:51 +0000

What is extension and intension?

Sat, 19 Jun 2010 20:47:19 +0000

Tell something about MS SQL Server

Sat, 19 Jun 2010 20:43:16 +0000

MS SQL Server is a Relational Database Management System developed by Microsoft Inc. Its primary query languages are:

T-SQL.

ANSI SQL.

History:

1987 - Sybase releases SQL Server for UNIX.

1988 - Microsoft, Sybase, and Aston-Tate port SQL Server to OS/2.

1989 - Microsoft, Sybase, and Aston-Tate release SQL Server 1.0 for OS/2.

1990 - SQL Server 1.1 is released with support for Windows 3.0 clients.

Aston-Tate drops out of SQL Server development.

2000 - Microsoft releases SQL Server 2000.

2001 - Microsoft releases XML for SQL Server Web Release 1 (download).

2002 - Microsoft releases SQLXML 2.0 (renamed from XML for SQL Server).

2002 - Microsoft releases SQLXML 3.0.

2005 - Microsoft releases SQL Server 2005 on November 7th, 2005.

Features:

High Performance.

High Availability.

Database mirroring.

Database snapshots.

CLR integration.

Service Broker.

DDL triggers.

Ranking functions.

Row version-based isolation levels.

XML integration.

TRY...CATCH.

Database Mail.

Database Normalization

Sat, 19 Jun 2010 20:41:56 +0000

What do you know about Database Normalization?

What is Data Integrity?

Sat, 19 Jun 2010 19:34:44 +0000

What is SQL Constraints?

Sat, 19 Jun 2010 19:33:59 +0000

What is NULL value?

Sat, 19 Jun 2010 19:30:57 +0000

What is column?

Sat, 19 Jun 2010 19:30:28 +0000

What is record, or row?

Sat, 19 Jun 2010 19:30:02 +0000

What is field?

Sat, 19 Jun 2010 19:29:32 +0000

What is table?

Sat, 19 Jun 2010 19:28:51 +0000

The data in RDBMS is stored in database objects called tables. The table is a collection of related data entries and it consists of columns and rows.

Remember, a table is the most common and simplest form of data storage in a relational database. Following is the example of a CUSTOMERS table:

+----+----------+-----+-----------+----------+
| ID | NAME     | AGE | ADDRESS   | SALARY   |
+----+----------+-----+-----------+----------+
| 1 | Ramesh   | 32 | Ahmedabad | 2000.00 |
| 2 | Khilan   | 25 | Delhi     | 1500.00 |
| 3 | kaushik | 23 | Kota      | 2000.00 |
| 4 | Chaitali | 25 | Mumbai    | 6500.00 |
| 5 | Hardik   | 27 | Bhopal    | 8500.00 |
| 6 | Komal    | 22 | MP        | 4500.00 |
| 7 | Muffy    | 24 | Indore    | 10000.00 |
+----+----------+-----+-----------+----------+

What is RDBMS?

Sat, 19 Jun 2010 19:27:20 +0000

What is RDBMS?

RDBMS stands for Relational Database Management System. RDBMS is the basis for SQL, and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access.

A Relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by E. F. Codd.

What is DBMS?

Sat, 19 Jun 2010 19:22:04 +0000

It is a collection of programs that enables user to create and maintain a database. In other words it is general-purpose software that provides the users with the processes of defining, constructing and manipulating the database for various applications.