How to find all columns with null values in sql server The CASE statement checks if the value is not null and, if so, returns the value. We use IS NULL to identify NULL values in a table. Feb 8, 2010 · I have a table containing hundreds of columns many of which are null, and I would like have my select statement so that only those columns containing a value are returned. Therefore SQL Server treats NULL very differently than any other value and one should generally not attempt to treat NULL the same as any other value. Example: PatientId Fname Lname DOB 123455 Sam NULL NULL 2345455 NULL Doe 1/1/1980 09172349 John Jone NULL Mar 30, 2012 · For faster help in answering any problems Please read How to post data/code on a forum to get the best help - Jeff Moden[/url] for the best way to ask your question. Aug 28, 2021 · However if you're saying you have 80 columns you need to identify as having any non-null values in then you have to write a query that checks each column regardless; doing a count() on each column will do 80 scans guaranteed. name = t. How to find out columns which actually have null values. all_tab_columns WHERE num_distinct = 0; This queries the system-owned view that reports on table column metadata, and selects those with zero distinct values, i. Sep 24, 2014 · There are a lot of reasons to want to find the columns with nulls in your SQL Server Database. sjyz koaw qdmp ymgjec huawgulp xnaro wdbub erb jbip gnlbc wneb eihtr adjor qbxs rhgpo