sql not null
SELECT column_name FROM table_name WHERE column_name IS NOT NULL;
sql not null
SELECT column_name FROM table_name WHERE column_name IS NOT NULL;
how to find columns with null values in sql
declare @col varchar(255), @cmd varchar(max) DECLARE getinfo cursor for SELECT c.name FROM sys.tables t JOIN sys.columns c ON t.Object_ID = c.Object_ID WHERE t.Name = 'ADDR_Address' OPEN getinfo FETCH NEXT FROM getinfo into @col WHILE @@FETCH_STATUS = 0 BEGIN SELECT @cmd = 'IF NOT EXISTS (SELECT top 1 * FROM ADDR_Address WHERE [' + @col + '] IS NOT NULL) BEGIN print ''' + @col + ''' end' EXEC(@cmd) FETCH NEXT FROM getinfo into @col END CLOSE getinfo DEALLOCATE getinfo
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