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Tables - 2 Video Lecture | CSAT Preparation - UPSC

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FAQs on Tables - 2 Video Lecture - CSAT Preparation - UPSC

1. What are the different types of tables in databases?
Ans. In databases, there are mainly three types of tables: permanent tables, temporary tables, and virtual tables.
2. How can I create a new table in a database?
Ans. To create a new table in a database, you can use the CREATE TABLE statement followed by the table name and the column definitions.
3. What is the purpose of primary keys in database tables?
Ans. Primary keys in database tables are used to uniquely identify each record in the table and ensure data integrity.
4. How can I add a new column to an existing table in a database?
Ans. You can add a new column to an existing table in a database using the ALTER TABLE statement followed by the ADD COLUMN clause.
5. What is the importance of indexing tables in databases?
Ans. Indexing tables in databases helps to improve the performance of queries by allowing for faster data retrieval.
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