Contents
How do I get top 10 results in SQL?
Example – Using TOP PERCENT keyword SELECT TOP(10) PERCENT contact_id, last_name, first_name FROM contacts WHERE last_name = ‘Anderson’ ORDER BY contact_id; This SQL SELECT TOP example would select the first 10% of the records from the full result set.
How do you calculate a percentage in a query?
- The most efficient (using over()). select Grade, count(*) * 100.0 / sum(count(*)) over() from MyTable group by Grade.
- Universal (any SQL version). select Grade, count(*) * 100.0 / (select count(*) from MyTable) from MyTable group by Grade;
- With CTE, the least efficient.
How do I view 10 rows in SQL?
If you want ties to be included, do FETCH FIRST 10 ROWS WITH TIES instead. To skip a specified number of rows, use OFFSET , e.g. Will skip the first 20 rows, and then fetch 10 rows. Supported by newer versions of Oracle, PostgreSQL, MS SQL Server, Mimer SQL and DB2 etc.
How to use the top percent keyword in SQL?
Example – Using TOP PERCENT keyword. Let’s look at a SQL example, where we use the TOP PERCENT keyword in the SELECT statement. For example: SELECT TOP (10) PERCENT contact_id, last_name, first_name FROM contacts WHERE last_name = ‘Anderson’ ORDER BY contact_id; This SQL SELECT TOP example would select the first 10% of the records from
How to select top 3 records from a dataset?
However, in the outer query the table will be used to select the category name along with the quantity field whereas in the inner query the table will be used to select top 3 values for each category. As you can see, in both the queries the tables are going to have different role.
How to find the top 10 Records in a group?
Apply other criteria to the query. Specify the number of records that you want the query to return. You can specify a percentage, such as the top 5 percent of values in a field, or you can specify a fixed number, such as the top 10 values in a field.
How to find the records with top or bottom values?
Clear the check boxes in the Show row for each expression, and then click the Sort cell for each expression and select Ascending. Optionally, you can specify a criteria to limit the scope of the query.