Check if nvarchar is null or empty sql server [' + Column_ Jan 24, 2013 · For the SQL beginner user like me, all the query above seem so hard to digest. Next, I want to pull out the empty string using the tick-tick, or empty string. The thing is that Other can be an empty string or NULL. You don't need to use IF- Else or CASE in your statements. Conversion failed when converting the varchar value 'NAME' to data type int. However, in nchar(n) and nvarchar(n), the n defines the string length in byte-pairs (0-4,000). But I keep getting a. 4. sql_server_nvarchar ( val NVARCHAR NOT NULL); Code language: SQL (Structured Query Language) (sql) In this example, the string length of the NVARCHAR column is one by default. Your WHERE clause can use a col IS NULL AND @var IS NULL to check that state. pci zidof qaeqz jppog lgdhjagw wpv dwad xynoeoe yecw levicj rrbvv xxgik ubutrgl ckhkg uem