Computer Science Post Graduate Teacher Interview Questions and Answers

DROP TABLE command is used to delete an entire table from the database, while DELETE command is used to delete specific rows from a table.

• DROP TABLE command deletes the entire table and its data, while DELETE command deletes specific rows from a table.

• DROP TABLE command cannot be rolled back, while DELETE command can be rolled back if used within a transaction.

• DROP TABLE command removes the table structure and associated indexes, while DELETE command only removes the data.

• DRO...read more

Strings are sequences of characters, while numerics are numbers. Strings are used to represent text, while numerics are used for mathematical operations.

• Strings are enclosed in quotation marks, while numerics are not.

• Strings can contain any character, including letters, numbers, and symbols, while numerics can only contain numbers.

• Strings can be concatenated or joined together, while numerics can be added, subtracted, multiplied, or divided.

• Examples of strings: 'Hello World',...read more