Difference between Infotype and Database table

Hi all,
in SAP ABAP-HR we have the concept of INFOTYPE. will anybpdy please tell me , in simple word, what exactly is it? and what are the difference of INFOTYPE with DATABASE TABLE.
Anirban Bhattacharjee

hi,
    infotypes contains group of logically related fields on a single screen (just like TABLE) and which is bounded by TIME CONSTRIANT (no time constrint for table).
main diffarence is TIME CONSTRAINT, means validity period of data records in infotypes based on time constrint only.
for more information on time constrint follow this link.........
http://help.sap.com/saphelp_erp2005/helpdata/en/48/35c9f24abf11d18a0f0000e816ae6e/content.htm
each infotype contains, its corresponding database table.
ex: 0002---> personal information.
     its database table: pa0002.
    the table pa0002 contains four strctures pakey, pshd1, ps0002 and ci_p0002.
    pakey-->contains key fields information.
    psdh1--->contains last logon detils (usename....)
    ps0002--->contains infotype specific fields.
    ci_p0002--> for furthur addinf an any extra fields
Edited by: Ashok Reddy on Jun 25, 2008 2:12 PM

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