How do you select the maximum of a column?
To find the max value of a column, use the MAX() aggregate function; it takes as its argument the name of the column for which you want to find the maximum value. If you have not specified any other columns in the SELECT clause, the maximum will be calculated for all records in the table.
How do I get the maximum of multiple columns in SQL?
Find MAX value from multiple columns in a SQL Server table
- Solution 1. The first solution is the following:
- Solution 2. We can accomplish this task by using UNPIVOT:
- Solution 3. This task can be solved by using UNION:
- Solution 4. And the fourth solution also uses a UNION:
- Performance Comparison.
- Conclusion.
How do I select multiple columns in a group by?
2 Answers
- Add the additional columns to the GROUP BY clause: GROUP BY Rls.RoleName, Pro.[FirstName], Pro.[LastName]
- Add some aggregate function on the relevant columns: SELECT Rls.RoleName, MAX(Pro.[FirstName]), MAX(Pro.[LastName])
How to select all rows where column value occurs more than once?
For the example above it will return rows 1, 2, 4, 5 Your query seems correct (although it may not be the most efficient). There are many ways to write this type of query. For example, you could use EXISTS to avoid counting in the correlated subquery: You can also try with HAVING clause.
How to select more than one word in Excel?
1 Place your cursor somewhere in or next to the first word you wish to select. 2 While holding down Ctrl (Windows & Linux) or Command (Mac OS X), click in the next word you wish to select. 3 Repeat until you’ve selected the words you want to change. 4 Type to replace the selected words with your changes.
How to select multiple lines, words, columns?
Press Ctrl+Alt-Down if you’re using Windows & Ctrl+Shift-Down if you’re using a Mac. You’ll see that the cursor stays in front of Lorem ipsum, but that it moves down & also appears in front of Dolor sit amet. Press the key combination again 3 more times, so there is a cursor in front of each line. Type * followed by…
How do I select multiple lines in Lorem?
Follow these steps: Place your cursor in front of Lorem. Press Ctrl+Alt-Down if you’re using Windows & Ctrl+Shift-Down if you’re using a Mac. Press the key combination again 3 more times, so there is a cursor in front of each line. Type * followed by a space. When you’re finsihed typing, press Esc to cancel the multiple selection.