All the statements of a block are passed to oracle engine all at once which increases processing speed and decreases the traffic. SQL statements are passed to Oracle engine one at a time which increases traffic and decreases speed. SQL has no facility of error checking during manipulation of data. It is declarative, that defines what needs to be done, rather than how things need to be done.
Oracle PL/SQL Programming, 5th Edition by Steven Feuerstein, Bill Pribyl
PL/SQL Introduction - GeeksforGeeks
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it. Oracle is transaction oriented; that is, Oracle uses transactions to ensure data integrity. A transaction is a series of SQL data manipulation statements that does a logical unit of work. It is important not to allow one operation to succeed while the other fails.
A Cursor is a pointer to this context area. Oracle creates context area for processing an SQL statement which contains all information about the statement. A cursor holds the rows returned by the SQL statement.
Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search.