Using Python to Operate VelocityDB

VelocityDB is a high-performance Object database, which can be used to store and manage a large amount of object data. Using Python to operate a VelocityDB database requires installing the VelocityDB Python library. The following are the steps to operate the VelocityDB database using Python: 1. Install the VelocityDB Python library: -Open a command prompt or terminal window. -Run the following command: ` pip install VelocityDB` 2. Connect to the VelocityDB database: python from VelocityDB.session import Session #Create database session session = Session.open("path_to_database", readOnly=False) #Create or get Object database database = session.database("database_name", create=True) 3. Insert data: python from VelocityDB.odb import ODB from VelocityDB.typeInfo import PType from VelocityDB.object import ObjectInstantiator #Creating an Object Instantiator instantiator = ObjectInstantiator(database) #Create a Object database odb = ODB(instantiator) #Define a class class Person(PType): def __init__(self, name, age): super().__init__() self.name = name self.age = age #Create a Person object instance in the Object database person = Person("John Doe", 30) odb.store(person) #Submit Changes odb.commit() 4. Query data: python #Retrieve Person object instances person = odb.queryByExample(Person).getAny() #Print Data print(person.name) print(person.age) 5. Modify data: python #Modifying the Properties of a Person Object Instance person.age = 31 #Submit Changes odb.commit() 6. Delete data: python #Delete Person object instance odb.delete(person) #Submit Changes odb.commit() Complete Python code example: python from VelocityDB.session import Session from VelocityDB.odb import ODB from VelocityDB.typeInfo import PType from VelocityDB.object import ObjectInstantiator #Create database session session = Session.open("path_to_database", readOnly=False) #Create or get Object database database = session.database("database_name", create=True) #Creating an Object Instantiator instantiator = ObjectInstantiator(database) #Create a Object database odb = ODB(instantiator) #Define a class class Person(PType): def __init__(self, name, age): super().__init__() self.name = name self.age = age #Create a Person object instance in the Object database person = Person("John Doe", 30) odb.store(person) #Submit Changes odb.commit() #Retrieve Person object instances person = odb.queryByExample(Person).getAny() #Print Data print(person.name) print(person.age) #Modifying the Properties of a Person Object Instance person.age = 31 #Submit Changes odb.commit() #Delete Person object instance odb.delete(person) #Submit Changes odb.commit() Please replace 'path_to_database' with the path of the VelocityDB database file according to the actual situation, and modify 'databasename' and other relevant information as needed.