How to Optimize Database Queries for Performance?
Several tactics are used to optimize database queries:
Indexing: To expedite data retrieval, create indexes on columns that are commonly used in WHERE, JOIN, and ORDER BY clauses.
Staying away from Choose: To cut down on the quantity of data processed, only choose the columns you require.
Query Refactoring: To improve efficiency, rewrite complicated queries by leveraging joins effectively or dividing them into smaller subqueries.
Examining Execution Strategies: Utilize tools to identify bottlenecks and evaluate and comprehend the query execution plan.
Setting up a database: Make that the database has enough memory and CPU and is configured correctly.
Archiving Old Data: To keep tables tidy, periodically archive or remove outdated, unnecessary data.
Is This Answer Correct ? | 0 Yes | 0 No |
Where the data file for system Tablespace is located? What is its name, initial size and maxsize?
Define phantom deadlock.
what is the index and synonym. i have the definitions ...can any one give me brief explanation.. with regards,
Give the cobol definition of a varchar field 177 when can an insert of a new primary key value threaten referential integrity?
When the SYSTEM TABLESPACE can be made off-line ?
Name two utilities that oracle provides, which are use for backup and recovery.
What is tuple in dbms?
Define a relation schema and a relation.
What is db context?
List few disadvantages of file processing system.
What are the 3 types of relationships in a database?
What is mean by dbms?