Shoumadip Das - Oracle Data Architecture

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Oracle Database

From Oracle 9i onward both non-unique and unique indexes can be compressed to save disk space. The COMPRESS [N] clause…

From Oracle 9i onward both non-unique and unique indexes can be compressed to save disk space. The COMPRESS [N] clause…

TABLE FUNCTION A table function is a function that can be called from within the FROM clause of a query,as…

In Oracle Database 12c Release 2 (12.2) the SPLIT PARTITION operations on heap tables can be performed online so they…

In Oracle, Segment Space Management is managing the space within a segment. In a segment generally you have USED block…

In our day to day life, sometimes we come across situations where we have to deal with duplicate values within…

In Oracle, Package data consists of variables and constants that are defined at the package level—that is, not within a…

In Oracle, the DBMS_XMLGEN package converts the results of a SQL query to a canonical XML format. The package takes…

A join method is the mechanism for joining two row sources. Depending on the statistics, the optimizer chooses the method…

AUTHID CURRENT_USER It is used when we want a routine to be executed with the privileges of the invoker and…

Clustering is a method of storing tables that are intimately related and often joined together into the same area on…