Peoplesoft Database separated into 3 parts....
1.System Catalog
2.PeopleTools
3.Application Data
System Catalog records the information about the database and its content. means Table Names, Column Names and Index Names Etc...
it contaions Database Metadata. it tracks all objects in entie database.
Ex:-DBA_OBJECTS.
PeopleTool record the information about the defination thats make up our peopleSoft Appliacation , which means its stores record names, page names annd component names etc.... it contains metadata about the peopleSoft application installed on the database.
Application Data records the information which is entered by the customers.
Webserver presents the Data.
Appserver validates the Business Logic.
Database Server stores and updates the data.
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