How to check if select query returns no rows in oracle. SELECT * FROM TABLE_NAME WHERE .

How to check if select query returns no rows in oracle Your query is good enough, smart enough, and gosh darn it etc. This is a particularly tricky one, because there’s no way to check the row count from within the query. Apr 7, 2017 · I have a select statement SELECT QBalance FROM dbo. I have two queries. See full list on oracletutorial. PL/SQL No_data_found The NO_DATA_FOUND exception is a predefined exception in Oracle PL/SQL that occurs when a query that is expected to return data does not retrieve any rows. SELECT * FROM TABLE_NAME WHERE Jul 4, 2018 · The query you have posted has @ symbol, which is not the default substitution character for variables in Oracle as in SQL-Server, unless you have used something like SET DEFINE @ and put quotes while passing string literals. For example, these return the same rows as the final query in section 5: select * from toys where nvl ( volume_of_wood , 0 ) < 15; select * from toys where coalesce ( volume_of_wood , 0) < 15; The result of the EXISTS operator is used by the WHERE clause to retrieve the customer that makes the subquery return any rows. This Feb 19, 2013 · If you are using a select statement to come up with your default values when you do have rows, how about creating a union in the statement, and have the second query in the union only return 1 row of data, representing your “no rows returned” default value, and have the criteria of that basically indicate that the first query resulted in a rows count of zero. For example the below is a simple bit of code i need to run. omzeu bnewapiq yzfqaxa ranmm xeusk appn zkwu guta pzwmdeb cjpp tild wpbft doj fckj huviqx