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Modify a sequence:
ALTER SEQUENCE SEQSS
INCREMENT 2
MAXVALUE 3000;
Removing a sequence:
DROP SEQUENCE SEQSS;
What is serialization? Where it is used and why? Serialization is a basic term used for mechanisms which enable objects and object structures to be converted into portable for
multiplicity constarin
Object Oriented model :An object has values stored in instance variables within the object. An object also has bodies of code that execute on the object. These bodies of code are
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
I have to solve a problem using access
What is an Index? An index is a small table having only two columns. The first column has a copy of the primary or candidate key of a table and the second column having a set o
Fifth Normal Form (5NF) These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two ta
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
What is foreign key? A relation schema r1 derived from an ER schema may contain among its attributes the primary key of another relation schema r2.this attribute is known as a
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