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Difference between DBMS and RDBMS...CODD's rules
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Answer Posted / avi007
DBMS-Database management system.
1> consider as file says field,attributes,record and file.
2> table relationship mentained by programmaticaly.
3> high network trafic.
4> distributed datable not supported.
5> no security
RDBMS-Relational management system
1> says column, row and table.
2>table relationship mentained at the time of table
creations.
3>low network trafic.
4>distributed database supported.
5>login level security.
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Table 1: col1 Timestamp ---------------- 01-mar-2012 11:12:46 Table 2: col2 Timestamp -------------------- 01-mar-2012 11:12:10 01-mar-2012 11:11:23 Write a query to display a row with table2 col2 value less than tabl1 col1 value. Maximum timestamp value previous to table1 col1 value. Display a result as: Col1 col2 ----- ----- 01-mar-2012 11:12:46 01-mar-2012 11:12:10
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