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There are three parts to tuning an Oracle database: data modeling, SQL code tuning and bodily database configuration.
A data model incorporates tables and relationships between tables. Tuning a data model consists of normalization and de-normalization. Completely totally different approaches are required counting on the equipment, resembling OLTP or a Information Warehouse. Inappropriate database design might make SQL code unimaginable to tune. Poor data modeling can have a most profound impact on database effectivity since all SQL code is constructed from the data model.
Poorly written SQL code is often a offender of effectivity points and is pricey to rectify. However, tuning of SQL code is often cheaper than altering the data model. SQL code tends to be contained inside unbiased blocks inside functions or saved procedures.
Bodily database tuning consists of hardware helpful useful resource utilization, networking and quite a few totally different Oracle points resembling configuration and file distribution. Bodily configuration is often a offender of poor effectivity the place Oracle is put in with defaults, and under no circumstances altered by an skilled.
*Consists of all three parts of Oracle database tuning: data model tuning, SQL & PL/SQL code tuning, bodily plus configuration tuning
*Incorporates expert steering and precise-world examples using big datasets *Emphasizes enchancment versus working system perspective
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