SQL Server: Invalid Column Name
Whenever this happens to me, I press Ctrl+Shift+R which refreshes intellisense, close the query window (save if necessary), then start a new session which usually works quite well.
stored-procedures
SQL Server Insert if not exists
instead of below Code replace with Updated : (thanks to @Marc Durdin for pointing) Note that under high load, this will still sometimes fail, because a second connection can pass the IF NOT EXISTS test before the first connection executes the INSERT, i.e. a race condition. See stackoverflow.com/a/3791506/1836776 for a good answer on why even wrapping in a … Read more
SQL Server WITH statement
My goal is to select result from one CTE and insert into other table with another CTE in the same procedure. How to do it? My error is… invalid object name xy. My query is
In SQL Server, what does “SET ANSI_NULLS ON” mean?
It means that no rows will be returned if @region is NULL, when used in your first example, even if there are rows in the table where Region is NULL. When ANSI_NULLS is on (which you should always set on anyway, since the option to not have it on is going to be removed in the future), any comparison operation where (at least) … Read more
SQL Server IF EXISTS THEN 1 ELSE 2
If you want to do it this way then this is the syntax you’re after; You don’t strictly need the BEGIN..END statements but it’s probably best to get into that habit from the beginning.
Must declare the scalar variable
You can’t concatenate an int to a string. Instead of: You need: To help illustrate what’s happening here. Let’s say @RowTo = 5. In order to build that into a string (even if ultimately it will be a number), I need to convert it. But as you can see, the number is still treated as … Read more
Must declare the scalar variable
You can’t concatenate an int to a string. Instead of: You need: To help illustrate what’s happening here. Let’s say @RowTo = 5. In order to build that into a string (even if ultimately it will be a number), I need to convert it. But as you can see, the number is still treated as … Read more
What is a stored procedure?
Stored procedures are a batch of SQL statements that can be executed in a couple of ways. Most major DBMs support stored procedures; however, not all do. You will need to verify with your particular DBMS help documentation for specifics. As I am most familiar with SQL Server I will use that as my samples. … Read more