What is the SQL keyword used to specify the number of rows to retrieve from a result set?OptionsROWSOFFSETLIMITTOP
Question
What is the SQL keyword used to specify the number of rows to retrieve from a result set?
Options:
- ROWS
- OFFSET
- LIMIT
- TOP
Solution
To specify the number of rows to retrieve from a result set in SQL, you can use the keyword LIMIT or TOP, depending on the database system being used.
- 
LIMIT: This keyword is commonly used in MySQL and PostgreSQL. For example, SELECT * FROM table_name LIMIT 10;retrieves the first 10 rows from the result set.
- 
TOP: This keyword is used in SQL Server. For instance, SELECT TOP 10 * FROM table_name;also retrieves the first 10 rows from the result set.
- 
ROWS and OFFSET are used primarily in conjunction with pagination in some SQL dialects, such as in PostgreSQL or SQL Server with the OFFSETclause:SELECT * FROM table_name ORDER BY column_name OFFSET 0 ROWS FETCH NEXT 10 ROWS ONLY;.
In summary, the correct answer depends on the SQL dialect you are using: LIMIT for MySQL/PostgreSQL or TOP for SQL Server.
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