DATETIME SELECT SELECT INTO DATE PAD STRING DYNAMIC SQL CURSOR MONEY FORMAT PERCENT STORED PROCEDURE SQL SERVER AGENT JOB OPTIMIZATION WHILE LOOP OVER PARTITION BY UPDATE
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How to generate Prime Numbers?

Execute the following Microsoft SQL Server T-SQL scripts in SSMS Query Editor for demonstrating a way for Prime Number list generation.

 

-- Prime number generator UDF - user-defined function for primes

CREATE FUNCTION fnPrimeNumbers ( @Limit INT)

RETURNS @Result TABLE  (Prime INT)

BEGIN

WITH cteSequence ( IntNo)

     AS (SELECT 1

         UNION ALL

         SELECT IntNo + 1

         FROM   cteSequence

         WHERE  IntNo < @Limit)

INSERT @Result

SELECT PrimeNo = N2.IntNo

FROM   cteSequence N1

       INNER JOIN cteSequence N2

    ON  N2.IntNo % N1.IntNo > 0

       AND N2.IntNo % 2 > 0

       AND N1.IntNo < N2.IntNo

       AND N2.IntNo > 1

       AND N1.IntNo >= 1

GROUP  BY N2.IntNo

HAVING ( N2.IntNo - COUNT(*) ) = 2

OPTION ( MAXRECURSION 0);

RETURN ;

END

GO

SELECT * FROM dbo.fnPrimeNumbers (5000)

/* PrimeNo

3

5

7

11

13

17

19

23  ....*/

------------ 

Exam Prep 70-461
Exam 70-461
DATETIME SELECT SELECT INTO DATE PAD STRING DYNAMIC SQL CURSOR MONEY FORMAT PERCENT STORED PROCEDURE SQL SERVER AGENT JOB OPTIMIZATION WHILE LOOP OVER PARTITION BY UPDATE