 Related Questions ORACLE database is comprised of three types of files. One or more Data files, two are more Redo Log files, and one or more Control files. Latest Answer : The components of a Physical Structure of a Database are as Follows:1.Control Files2.Redolog Files3.Data Files. ... Every ORACLE database contains a tablespace named SYSTEM, which is automatically created when the database is created. The SYSTEM tablespace always contains the data dictionary tables for the entire database. Latest Answer : Every Oracle Database contains a tablespace called system tablespace.This tablespace gets created at the time of database creation and it holds data dictionary information for the entire database. ... Each databases logically divided into one or more tablespaces one or more data files are explicitly created for each tablespace. Latest Answer : Databases, tablespaces, and datafiles are closely related, but they have important differences:1) An Oracle database consists of at least two logical storage units called tablespaces, which collectively store all of the database's data. You must have ... Schema objects are the logical structures that directly refer to the database's data. Schema objects include tables, views, sequences, synonyms, indexes, clusters, database triggers, procedures, functions A table is the basic unit of data storage in an ORACLE database. The tables of a database hold all of the user accessible data. Table data is stored in rows and columns. Latest Answer : Table is data base object which stores the data in the logical representatiom in form of rows n coluns which is existing in two dimension form... and is stored in the databse. ... Views do not contain or store data. Latest Answer :  Hi,  It depends on the type of view it is. if it is a normal view than it does not contains the data. and if it is materialsed view than it contains the data. Thanks sanjay pramanik ... Provide an additional level of table security, by restricting access to a predetermined set of rows and columns of a table.Hide data complexity.Simplify commands for the user.Present the data in a different An Index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns Indexes are automatically maintained and used by ORACLE. Changes to table data are automatically incorporated into all relevant indexes. Latest Answer : Index is a Database object . It can be accessed rows physical fast. when you move the table from different table spaces or same table spaces indexes will unusually status. So You compulsory rebuild the index. Rebuilding the index is very fast than drop ... ORACLE database's data is stored in data blocks. One data block corresponds to a specific number of bytes of physical database space on disk. Latest Answer : Oracle Data Blocks is logical storage unit of Oracle and One Oracle Data Blocks containts multiple of Operating system Blocks. Data blocks contains contigous of Bytes. ...
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