What does Max return if there are no rows?

What does Max return if there are no rows?

MAX returns NULL when there is no row to select. For character columns, MAX finds the highest value in the collating sequence.

How do you assign a default value if no rows returned from the SELECT query in Oracle?

1. ISNULL is the SQL Server equivalent to NVL…
2. The question is how to return default values when there are NO rows returned. –
3. This query may still yield 0 records if no record matches where clause.
4. Using the MIN function means that, if no rows match the conditions, a single row with a NULL value will be returned. (

Can a subquery returns zero rows?

Yes, a scalar subquery always returns NULL if there are no rows found. In the context of the IN operation it is a table subquery and so no rows means no values to match against.

How can I make select max ( x ) return 0?

SELECT max (x) is returning null; how can I make it return 0? Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Provide details and share your research!

When to return the blank row in select?

Will only return the “blank” row if the entire contents of “a” is null. i needed to do something similar and my brain was not giving, so i searched and found this question but then thought of this way also, if username is unique in players which in my use fits better (but surely it can be simplified more ?!

How to get select to return a constant value?

BTW, it’s PostgreSQL 8.4. But I think the explicit CTE ( with…) is more readable (although that is always in the eyes of the beholder). This will return one row with all values having null except query_id if no row is found.

How to assign default value if no rows returned from a table?

Select isnull(cnt,0)as cnt from table1 where col_1 = ‘test’ and convert (varchar(10),date_col,111) = (select max (convert (varchar(10),date_col,111)) from ta… EXPLORE Tech Tech Home Big Data Cloud DevOps Infrastructure Innovation Mobility Operating Systems Programming Security Strategy ENTERPRISE SOFTWARE Applications Infor Oracle PeopleSoft SAP