Using RAISERROR Instead Of PRINT

Kevin Feasel

2018-06-07

T-SQL

Randolph West recommends using RAISERROR WITH NOWAIT rather than PRINT for printing messages:

Read that last line again. It’s saying that the PRINT command needs to fill some sort of memory buffer before you see any output. Sometimes you’re lucky, and sometimes you’re not. Erland Sommarskog says the same thing in the series Error and Transaction Handling in SQL Server (Part 1: Jumpstart Error Handling | Part 2: Commands and Mechanisms | Part 3: Implementation).

If you want immediate output from your long-running process, use RAISERROR instead of PRINT, and make use of the WITH NOWAIT parameter.

Naturally I can’t leave you hanging with a 150-word blog post, most of which is quoting Erik, so I decided to do some digging. The question I posed myself was “How big is the PRINT buffer?”

I always use error level 10, as that’s the minimum level guaranteed to print to the console immediately and it does not write to error logs or stop operations.

Related Posts

Finding The Closest Numeric Match

Itzik Ben-Gan has a T-SQL puzzle for us: As you can see, both T1 and T2 have a numeric column (INT type in this example) called val. The challenge is to match to each row from T1 the row from T2 where the absolute difference between T2.val and T1.val is the lowest. In case of […]

Read More

Finding The SQL Server Port With T-SQL

Jack Vamvas shows us how to find the port SQL Server is listening on using T-SQL: Question: Without going into the SQL Server Configuration manager via the GUI is there a command oriented method to extract the port number SQL Server is listening on? Answer: There are a few different methods to extract the port number without going […]

Read More

Categories

June 2018
MTWTFSS
« May Jul »
 123
45678910
11121314151617
18192021222324
252627282930