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Tables - 2 Video Lecture | CSAT Preparation - UPSC
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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