Podcast
Questions and Answers
Which of the following statements about the SQLDataReader is correct?
Which of the following statements about the SQLDataReader is correct?
- SQLDataReader can read multiple rows and columns simultaneously.
- SQLDataReader can write data back to the database.
- SQLDataReader requires the connection to be open for reading. (correct)
- SQLDataReader allows for asynchronous data retrieval.
What is the purpose of the Flush method in stream operations?
What is the purpose of the Flush method in stream operations?
- To reset the stream to its initial state.
- To read data from the buffer without removing it.
- To write any buffered data to the underlying device. (correct)
- To close the stream and release resources.
In the context of exception handling, what is the role of the try/catch block?
In the context of exception handling, what is the role of the try/catch block?
- To allow for simultaneous execution of multiple operations.
- To execute a block of code without error checking.
- To declare a variable and then initialize it later.
- To handle exceptions and perform alternative actions when errors occur. (correct)
Which collection type is unordered and allows access to its elements via keys?
Which collection type is unordered and allows access to its elements via keys?
What is the correct syntax for inserting a record into a database using SQLCommand?
What is the correct syntax for inserting a record into a database using SQLCommand?
Flashcards
IEnumerable
IEnumerable
An interface that represents a collection of objects that can be iterated over, allowing you to access each element within the collection sequentially.
IDictionary
IDictionary
An interface that represents a collection of key-value pairs, allowing you to retrieve values based on their associated keys.
SQLDataReader
SQLDataReader
An object used to read data from a database in a forward-only, read-only manner. It's ideal for efficiently retrieving data from a database.
Flush
Flush
Signup and view all the flashcards
Thread
Thread
Signup and view all the flashcards
Study Notes
Multiple Choice Questions (Part A)
- 15 items, worth 2 points each.
- Topics include:
IEnumerable,ICollection,IDictionary,SortedList, exceptions, and command object properties (Seek, Peek, Read, Flush). - Hashes (
Hashtable, key/value pairs) - Data handling:
Dataset,DataTable,DataColumn,DataRelation,DataColumnMapping,DataView - Database interactions:
SQLDataReader,SQLCommand,Event Operator,SQLConnection - Assembly file extension.
Multiple Choice Questions (Part B)
- 15 items, worth 3 points each.
- Topics cover database syntax:
- Retrieving/setting read timeouts
- Stream writer initialization
- Reading values (checking read access)
- Importing classes (accessing MS SQL Server)
- Thread instantiation
- Correct database connection code
dequeueandenqueue- SQL commands (
insert into,update,delete,select) SQLParameterinstantiation- Stack instantiation
- Calling stored procedures
- Assigning threads
try/catchblocks- Database manipulation (
delete,createcommands)
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on database interactions, data handling, and various .NET collections through two parts of multiple-choice questions. Cover topics such as IEnumerable, ICollection, SQL commands, and error handling concepts. Perfect for those looking to strengthen their understanding of data management principles in programming.
