What does schema means in database?
Schema means a named collection of objects, such as tables, views, clusters, procedures, packages, attributes, object classes, and their corresponding matching rules, which are associated with a...
View ArticleWhy SQL is useful?
SQL (Structured Query Language) is a standard language to use with relational databases. It is useful because it allows a user to Query, Manipulate, Define, and Control data in an RDBMS. SQL became a...
View ArticleCommonly used Data Types in Oracle
The most commonly used data types are: DATE, NUMBER, VARCHAR2 AND CHAR. DATE The DATE data type stores date and time information. The default display format for a date may be DD-MON-YY. For example,...
View ArticleDifference between VARCHAR2 and CHAR on oracle
The VARCHAR2 and CHAR data types store alphanumeric data such as text, numbers, special characters. VARCHAR2 data type is the variable length data type and its maximum size is 4,000 characters. CHAR...
View ArticleBLOB vs BFILE data type in Oracle
BLOB (binary large objects) stores unstructured binary large objects. It is often used for graphic images, video clips, and sounds. The BLOB data type stores the content inside the Oracle database....
View ArticleCommunication between Oracle server with the client
Communication to Oracle database server can be done using client programs such as SQL Developer and SQL*Plus, TOAD etc. Various communication protocols, such as Oracle Net and JDBC are used to...
View ArticleDefine Database
A database is an organized collection of data where a set of inter-related data kept in an organized way.Data from the database cannot be accessed without a Database Management System. Example:...
View ArticleOracle Database
Oracle is an object-oriented relational database management system produced and marketed by Oracle Corporation. It is a management system which uses the relational data model.In the relational data...
View ArticleOracle Server
Oracle server is a database management system that provides an open, comprehensive, integrated approach to information management. It is consists of an Oracle Instance and an Oracle database.
View ArticleOracle RDBMS
Oracle Relational Database Management System (RDBMS) has two parts: Oracle Instance Oracle Database Oracle Instance: Created on loading the software from disk to memory. It is a means to access an...
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