Cascading update in DBMS
What do you understand by the term cascading update in DBMS?
Expert
Referential integrity constraints need that foreign key values in one table correspond to primary key values in any other. When the value of the primary key is altered – i.e., updated -- the value of the foreign key must instantly be changed to match it. Cascading updates will setup this alter to be done automatically by the DBMS when essential.
What are the techniques in which an Oracle database can be created?
Determine the stand-alone procedures?
What is the corresponding of Oracle/Db2 Coalesce Function within Sybase?
Give brief introduction of the term an OLAP system and OLTP system?
Explain the Aggregator Transformation?
Identify those statements are true about a foreign key?
Give a brief introduction of the term SAS Business Intelligence?
How can we remove duplicate rows from the flat file?
How teradata ensures that there are no duplicate rows being inserted while this SET table?
Explain what do you mean by the spatial data mining?
18,76,764
1929827 Asked
3,689
Active Tutors
1418072
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!