rmalayter

CREATE FUNCTION dbo.HMAC (
	@algo VARCHAR(20)
	,@key VARBINARY(MAX)
	,@data VARBINARY(MAX)
	)
	/* This function only takes VARBINARY parameters instead of VARCHAR
to prevent problems with implicit conversion from NVARCHAR to VARCHAR 
which result in incorrect hashes for inputs including non-ASCII characters. 
Always cast @key and @data parameters to VARBINARY when using this function. 
Tested against HMAC vectors for MD5 and SHA1 from RFC 2202 */

rmalayter

IF EXISTS (
		SELECT *
		FROM sys.objects
		WHERE object_id = OBJECT_ID(N'[dbo].[base32enc]')
			AND type IN (
				N'FN'
				,N'IF'
				,N'TF'
				,N'FS'
				,N'FT'

rmalayter

/* Microsoft T-SQL, tested on SQL Server 2014 */
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;

USE tempdb;

/*********** CREATE TEST DATA ***********/
/* temporary table for testing with sample calculated metric, could be the result of a WITH common table expression or subquery instead*/
CREATE TABLE #mymetricdata (
	key_field INT IDENTITY PRIMARY KEY CLUSTERED
	,metric FLOAT

rmalayter

--compress all uncompressed tables and indexes in a SQL SERVER 2017 or later database
--modify the dabase name below
USE XXDATABASE_NAMEXX;

DECLARE @sqltext NVARCHAR(MAX)

SET @sqltext = N'USE ' + DB_NAME() + N';' + NCHAR(13) + NCHAR(10)

SELECT @sqltext = @sqltext + N'ALTER ' + CASE 
		WHEN p.index_id IN (0,1)