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Topic: Sql-conceptual-questions / Level: Beginner
181. What is a BEFORE DELETE trigger used for?
182. How do you use the INSERTED and DELETED tables in triggers?
183. What is the difference between a DATABASE TRIGGER and a TABLE TRIGGER?
184. What is the purpose of a SEQUENCE in SQL?
185. How do you create and use a sequence in SQL?
186. What is the difference between a sequence and an auto-increment column?
187. What is the purpose of a TEMPORARY TABLE?
188. How do you use a temporary table to store intermediate results?
189. What is a materialized view?
190. How do you create a materialized view in SQL?
191. What are the benefits of using materialized views?
192. How do you refresh a materialized view in SQL?
193. What is the purpose of the MERGE statement?
194. How do you perform an UPSERT operation using the MERGE statement?
195. What is a database migration?
196. How do you perform a database migration in SQL?
197. What is the purpose of the ALTER TABLE ... RENAME TO statement?
198. How do you copy a table structure without copying data?
199. What is the purpose of the CHECKPOINT command in SQL?
200. How do you use the SET TRANSACTION statement to set transaction properties?
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