data dictonary

[former_member222933]

what is data class?

[swathi]

hi sainath,

data class define the physical area of the database .In this we have different types of data,

APPL0 Master data :- which is not changed ,

APPL1 Transcation data :- which is changed frequently , like sales order , purchase order...

APPL2 Customizing data

[Former Member]

The data class defines the physical area of the database (for ORACLE the TABLESPACE) in which your table is logically stored. If you choose a data class correctly, your table will automatically be assigned to the correct area when it is created on the database.

The most important data classes are (other than the system data):

APPL0 Master data

APPL1 Transaction data

APPL2 Organizational and customizing data

Master data is data which is frequently read, but rarely updated. Transaction data is data which is frequently updated.Organizational und customizing data is data which is defined when the system is initialized and then rarely changed.

There are two more data classes available, USR and USR1. These are reserved for user developments. The tables assigned to these data classes are stored in a tablespace for user developments.