STUDENTS
. We also have an oracle sequence called STUDENT_SEQ
that we uses to generate primary key for STUDENTS table.STUDENTS
table. We uses sequence STUDENT_SEQ
to generate primary key. Once the record is inserted, we want the last inserted primary value.studentId
variable.getGeneratedKeys()
method is key here. Generate rsa key cisco ios. It gives us the result set of all auto generated key values. In our case as we have only one auto generated value (for student_id column) we get only single record in this result set.getInstance
factory methods (static methods that return instances of a given class). initialize
method in this KeyPairGenerator class that takes these two universally shared types of arguments. There is also one that takes just a keysize
argument, and uses the SecureRandom
implementation of the highest-priority installed provider as the source of randomness. (If none of the installed providers supply an implementation of SecureRandom
, a system-provided source of randomness is used.) initialize
methods, it is up to the provider what to do about the algorithm-specific parameters (if any) to be associated with each of the keys. p
, q
, and g
parameters. If the modulus size is not one of the above values, the Sun provider creates a new set of parameters. Other providers might have precomputed parameter sets for more than just the three modulus sizes mentioned above. Still others might not have a list of precomputed parameters at all and instead always create new parameter sets. initialize
methods that have an AlgorithmParameterSpec
argument. One also has a SecureRandom
argument, while the the other uses the SecureRandom
implementation of the highest-priority installed provider as the source of randomness. (If none of the installed providers supply an implementation of SecureRandom
, a system-provided source of randomness is used.) initialize
method), each provider must supply (and document) a default initialization. For example, the Sun provider uses a default modulus size (keysize) of 1024 bits. KeyPairGeneratorSpi
for historical reasons. Application developers should only take notice of the methods defined in this KeyPairGenerator
class; all the methods in the superclass are intended for cryptographic service providers who wish to supply their own implementations of key pair generators. KeyPairGenerator
algorithms and keysizes in parentheses: DiffieHellman
(1024)DSA
(1024)RSA
(1024, 2048)