Oracle select null as value

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Popular Course in this category. Course Price View Course. Free Data Science Course. The else clause is optional. NULL values are one of the most mind-boggling values in the Oracle database.

Find out more. Fortnightly newsletters help sharpen your skills and keep you ahead, with articles, ebooks and opinion to keep you informed. View all articles by Patrick Barel. FROM emp t. WHERE t. NVL expr1 , expr2. NVL2 expr1 , expr2 , expr3. LNNVL condition. FROM emp e. AND e. FROM table ;. NVL value, default is the function you are looking for. Improve this answer. Tony Andrews Tony Andrews k 20 20 gold badges silver badges bronze badges.

The other answers regarding the use of nvl are correct however none seem to address a more salient point: Should you even have NULLs in this column? Do they have a meaning other than 0? The first goal of SO should be to answer the OP. Programmers have a need. That need is to have a question answered. Do you even know if BerekBryan has the ability to change the column?

Has he even met the person who can change it? I know we all want to show how smart we are but let's stick to the OP — Mark Brady. Mark Brady, I don't really agree. It's not "how smart we are", but rather suggesting alternative ways of approaching the problem. The OP may or may not have the ability to change the column, but the comment is useful if not for him then possibly for others who read this thread. Mark: you can answer the OP and advise better approached at the same time. It makes for a better answer.

Consider this: overtime report comes late. Without NULL you need extra field for getting list of "types" for whom we didn't get data.

Show 2 more comments. JosephStyons JosephStyons Based on the conditions, one or more rows exist in the table. Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise.

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