What is lookup transformation and update strategy transformation and explain with an example.Thanks in advance
Look up transformation helps us to look for a data in a flat file,relational,view synonym. Lookup transformation can be used to get a related value and in a slowly changing dimensions
In Lookup transformation the source table look to the other tables what the destination you need
But in update stratergy you required empty field you have to fill it
What is the difference between DBMS and RDBMS ?
Answered by: RicGupta1984
View all answers by RicGupta1984
Member Since Sep-2007 |
Answered On : Mar 5th, 2008
A DBMS has to be persistent, that is it should be accessible when the program created the data ceases to exist or even the application that created the data restarted. A DBMS also has to provide some uniform methods independent of a specific application for accessing the information that is stored.RDBMS is a Relational Data Base Management System Relational DBMS. This adds the additional condition that the system supports a tabular structure for the data, with enforced relationships between the tables. This excludes the databases that don't support a tabular structure or don't enforce relationships between tables.Many DBA's think that RDBMS is a Client Server Database system but thats not the case with RDBMS.Yes you can say DBMS does not impose any constraints or security with regard to data manipulation it is user or the programmer responsibility to ensure the ACID PROPERTY of the database whereas the rdbms is more with this regard bcz rdbms difine the integrity constraint for the purpose of holding ACID PROPERTY.
DBMS has to be persistent, that is it should be accessible when the program created the data ceases to exist or even the application that created the data restarted. A DBMS also has to provide some un...
DBMS and RDBMS both are the management system instead in case of RDBMS we use foreign keys, primary keys etc. which is not possible in case of DBMS
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