While working with Oracle database, in day to day life,we use many types of SQL commands. In fact SQL commands are really universal in nature. Today, let us learn some of the most commonly used SQL commands in Oracle.

In Oracle we work with many types of datatypes. Some of the most popular datatypes are as follows:

The word database can be best defined as a coherent collection of data with some inherent meaning, designed, build and populated with data for a specific purpose.

The most significant characteristics of a relational DBMS models are

In a multi environment, an RDMS engine capable of functioning on a multi user operating system is used. Now, multiple users’ request for table data will be responded to by the RDMS engine.

The person who is responsible for administrating all of Oracle’s resources on the hard disk drive and allows the user to access these resources is mainly known as Oracle Database Administrator (ODBA).

The Oracle DBA can compile and execute SQL sentences issued by a user. If the SQL sentences are unsuccessful, the Oracle returns an appropriate error message to the user.

SQL * Plus is made up of two distinct parts. These are (a) Interactive SQL (b) PL/SQL. Interactive SQL is designed to create, access and maintain all data structures like tables, indexes etc.

An oracle form allows us to create a data entry screen along with suitable menu object. The Oracle form tools handles data gathering and data validation of a commercial application.

Report writer allows programmers to prepare innovative reports using data from the Oracle Structures like tables, views etc.

Some of the data can be better represented in the form of graphs. The Oracle Graphics Tools allows programmers to prepare graphs using data forms Oracle Structures like tables, view etc.

Oracle provides an Interactive SQL tool i.e. SQL * Plus, which allows users to enter the ANSI SQL sentences and pass them to the DBA for execution.

The methods via which you can construct SQL sentences and pass them to the DBA are as follows: 

The most significant data types that a cell can hold in Oracle Developer 2000 are as follows:

In Oracle two dimension Matrix can be easily done by communicating with the DBA using the natural language of the DBA, namely ISQL.

The command or in other words the syntax for creating tables in Oracle is

Sometimes we have to create a table from another table. If the source table from which the Target table is being created, has records in it then the target table is populated with these records as well.

You can easily insert data into tables in Oracle by writing the below given SQL Query.

Let us understand the SQL server 2005 installation error which displays a message “There was an unexpected failure during the setup wizard”.

If we have already taken our Microsoft SQL Server database backup then we are now bit safe and lucky than others. But if we don't know the procedure to restore the backup database then simply God knows our future.

Never even in dreams compare the significance of regular database backup with time, energy and money.

Yesterday night was almost ruined when I tried to connect my special VB.net project with Microsoft SQL Server 2005 in Vista operating system.

After the creation of the database the next work is to create/design tables in SQL server 2005 as per our requirement.

Understanding the data types of SQL Server 2005.

There is a hell and heaven difference between the concept of SQL SERVER 7.0 and SQL Server 2005. But the procedure for creating a database in SQL server 2005 in almost same as it was in the older versions of the software.

Both SQL server 2005 standard edition and SQL server express edition are compatible with Microsoft Windows Vista.

Well, older version of SQL server is not compatible with Windows Vista. But SQL server 2005 standard edition and SQL server express edition is highly compatible with window Vista.

Well the bitter side of Windows Vista is that it is highly incompatible with any version of SQL server. Vista and SQL server belongs to the same company Microsoft.