How do you set Maxrecursion on CTE?

How do you set Maxrecursion on CTE?

How to perform recursion more than 32767.

1. DECLARE @Min int;
2. DECLARE @Max int;
3. SET @Max = 150;
4. SET @Min = 1;
5. WITH Sequence_ AS(SELECT @Min AS num UNION ALL SELECT num + 1 FROM Sequence_ WHERE num + 1 <= @Max)
6. SELECT num FROM Sequence_
7. OPTION(MAXRECURSION 32770)

Is an infinite loop an error?

What is an Infinite Loop? An infinite loop occurs when a condition always evaluates to true. Usually, this is an error. For example, you might have a loop that decrements until it reaches 0.

How can an infinite loop be avoided?

How to avoid running into infinite loops?

1. Ensure you have at least one statement within the loop that changes the value of the comparison variable. (That is, the variable you use in the loop’s comparison statement.)
2. Never leave the terminating condition to be dependent on the user.

How does Snowflake prevent an infinite loop in a CTE?

In theory, constructing a recursive CTE incorrectly can cause an infinite loop. In practice, Snowflake prevents this by limiting the number of iterations that the recursive clause will perform in a single query. The MAX_RECURSIONS parameter limits the number of iterations.

Is there a limit to the number of loops in CTE?

Just curious since the answer you prefer uses a rather similar technique to track the path/levels to locate loops. One more thing as you mentioned that there is no limit. so in case of CTE is having maxrecusrion is set to 0 is fine but the max limit of recursion in CTE is 32,767.

How to create an infinite loop in SQL Server?

When 0 is specified, using option (MAXRECURSION 0), no limit is applied, and the CTE will run in an infinite loop: If we do not set the option (MAXRECURSION 0), the default maximum recursion 100 will been exhausted before statement completion: The statement terminated.

Which is an example of an infinite loop?

When you write a loop, you want to make sure that it never runs infinitely. Examples of infinite loops provided here can be used for testing purposes in a testing environment, and to learn to recognize and to avoid them. The WHILE loop continues until it is interrupted by a BREAK statement, or until the specified condition is no longer true.