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Re: Query Takes Longer Each Time Its Run
Posted by: anthony ()
Date: January 31, 2011 01:22AM

Here is a test database with one table, 626 rows, and 4 udfs required for the query:

-- ------------------------------------------------------
-- Server version 5.5.8-log

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `records`
--

DROP TABLE IF EXISTS `records`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `records` (
`RecordID` int(11) unsigned NOT NULL AUTO_INCREMENT,
`UserID` int(11) unsigned NOT NULL DEFAULT '0',
`ClockIn` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (`RecordID`),
KEY `ix_unpaidhours` (`UserID`),
KEY `ix_userid` (`UserID`),
KEY `idx_xhours` (`UserID`),
KEY `idx_recordalerts` (`UserID`),
KEY `idx_usertimeclass` (`UserID`)
) ENGINE=MyISAM AUTO_INCREMENT=3911876 DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Dumping data for table `records`
--

LOCK TABLES `records` WRITE;
/*!40000 ALTER TABLE `records` DISABLE KEYS */;
INSERT INTO `records` VALUES (2173266,23993,'2009-09-24 20:05:00'),(2176436,23993,'2009-09-25 12:58:00'),(2177529,23993,'2009-09-25 19:58:00'),(2181635,23993,'2009-09-28 13:05:00'),(2182824,23993,'2009-09-28 20:06:00'),(2185903,23993,'2009-09-29 12:57:00'),(2187293,23993,'2009-09-29 20:13:00'),(2190206,23993,'2009-09-30 12:58:00'),(2191702,23993,'2009-09-30 19:46:00'),(2194625,23993,'2009-10-01 13:31:00'),(2196269,23993,'2009-10-01 20:16:00'),(2198948,23993,'2009-10-02 12:58:00'),(2200287,23993,'2009-10-02 19:44:00'),(2204085,23993,'2009-10-05 12:58:00'),(2205531,23993,'2009-10-05 19:44:00'),(2208525,23993,'2009-10-06 13:12:00'),(2209923,23993,'2009-10-06 20:06:00'),(2212728,23993,'2009-10-07 13:01:00'),(2214126,23993,'2009-10-07 19:50:00'),(2217113,23993,'2009-10-08 13:00:00'),(2218396,23993,'2009-10-08 19:56:00'),(2221041,23993,'2009-10-09 12:53:00'),(2223160,23993,'2009-10-09 20:48:00'),(2226604,23993,'2009-10-12 12:53:00'),(2229510,23993,'2009-10-12 20:06:00'),(2230543,23993,'2009-10-13 14:25:00'),(2232554,23993,'2009-10-13 19:17:00'),(2235238,23993,'2009-10-14 12:58:00'),(2236567,23993,'2009-10-14 20:25:00'),(2239429,23993,'2009-10-15 12:57:00'),(2240735,23993,'2009-10-15 19:52:00'),(2243518,23993,'2009-10-16 11:47:00'),(2248546,23993,'2009-10-19 13:03:00'),(2249969,23993,'2009-10-19 19:42:00'),(2253020,23993,'2009-10-20 13:00:00'),(2254294,23993,'2009-10-20 19:49:00'),(2257516,23993,'2009-10-21 13:05:00'),(2258899,23993,'2009-10-21 20:14:00'),(2261642,23993,'2009-10-22 12:54:00'),(2263080,23993,'2009-10-22 19:43:00'),(2266084,23993,'2009-10-23 13:09:00'),(2267399,23993,'2009-10-23 20:12:00'),(2283464,23993,'2009-10-28 07:00:00'),(2283465,23993,'2009-10-26 07:00:00'),(2283466,23993,'2009-10-27 07:00:00'),(2283467,23993,'2009-10-29 07:00:00'),(2283468,23993,'2009-10-30 07:00:00'),(2294134,23993,'2009-11-02 14:02:00'),(2295493,23993,'2009-11-02 21:00:00'),(2298547,23993,'2009-11-03 13:47:00'),(2299987,23993,'2009-11-03 20:59:00'),(2302958,23993,'2009-11-04 14:04:00'),(2304404,23993,'2009-11-04 20:49:00'),(2307728,23993,'2009-11-05 13:52:00'),(2308939,23993,'2009-11-05 21:50:00'),(2311893,23993,'2009-11-06 13:54:00'),(2313012,23993,'2009-11-06 21:08:00'),(2317088,23993,'2009-11-09 14:04:00'),(2318530,23993,'2009-11-09 20:59:00'),(2322088,23993,'2009-11-10 13:58:00'),(2323462,23993,'2009-11-10 21:08:00'),(2326323,23993,'2009-11-11 14:04:00'),(2327645,23993,'2009-11-11 21:01:00'),(2330501,23993,'2009-11-12 14:01:00'),(2332004,23993,'2009-11-12 20:55:00'),(2334858,23993,'2009-11-13 13:52:00'),(2336153,23993,'2009-11-13 20:56:00'),(2340029,23993,'2009-11-16 13:55:00'),(2341470,23993,'2009-11-16 20:40:00'),(2344715,23993,'2009-11-17 14:03:00'),(2345995,23993,'2009-11-17 20:57:00'),(2349119,23993,'2009-11-18 13:39:00'),(2350328,23993,'2009-11-18 21:05:00'),(2355502,23993,'2009-11-19 14:00:00'),(2355504,23993,'2009-11-19 20:00:00'),(2357862,23993,'2009-11-20 14:00:00'),(2359318,23993,'2009-11-20 17:30:00'),(2363242,23993,'2009-11-23 14:03:00'),(2364801,23993,'2009-11-23 20:46:00'),(2367992,23993,'2009-11-24 14:00:00'),(2369293,23993,'2009-11-24 21:10:00'),(2372501,23993,'2009-11-25 14:04:00'),(2373922,23993,'2009-11-25 21:09:00'),(2375710,23993,'2009-11-27 12:49:00'),(2375998,23993,'2009-11-27 20:16:00'),(2379873,23993,'2009-11-30 14:04:00'),(2381381,23993,'2009-11-30 21:15:00'),(2382498,23993,'2009-11-26 08:00:00'),(2382669,23993,'2009-11-27 08:00:00'),(2384678,23993,'2009-12-01 14:04:00'),(2386233,23993,'2009-12-01 21:01:00'),(2389352,23993,'2009-12-02 14:37:00'),(2390947,23993,'2009-12-02 20:30:00'),(2398348,23993,'2009-12-04 13:49:00'),(2399677,23993,'2009-12-04 20:45:00'),(2403869,23993,'2009-12-07 13:59:00'),(2405092,23993,'2009-12-07 20:52:00'),(2408199,23993,'2009-12-08 13:55:00'),(2409420,23993,'2009-12-08 20:56:00'),(2412478,23993,'2009-12-09 13:59:00'),(2413937,23993,'2009-12-09 20:57:00'),(2416859,23993,'2009-12-10 13:56:00'),(2418275,23993,'2009-12-10 21:01:00'),(2421171,23993,'2009-12-11 13:59:00'),(2422312,23993,'2009-12-11 20:49:00'),(2426352,23993,'2009-12-14 14:00:00'),(2427737,23993,'2009-12-14 20:57:00'),(2430879,23993,'2009-12-15 13:56:00'),(2432104,23993,'2009-12-15 21:06:00'),(2435351,23993,'2009-12-16 14:08:00'),(2436752,23993,'2009-12-16 20:53:00'),(2439636,23993,'2009-12-17 14:13:00'),(2441013,23993,'2009-12-17 20:40:00'),(2443894,23993,'2009-12-18 14:36:00'),(2445501,23993,'2009-12-18 20:36:00'),(2449252,23993,'2009-12-21 14:09:00'),(2450585,23993,'2009-12-21 20:43:00'),(2453377,23993,'2009-12-22 14:05:00'),(2454919,23993,'2009-12-22 21:04:00'),(2457634,23993,'2009-12-23 13:55:00'),(2458849,23993,'2009-12-23 20:56:00'),(2464441,23993,'2009-12-28 08:00:00'),(2469145,23993,'2009-12-29 13:57:00'),(2470795,23993,'2009-12-29 21:09:00'),(2473531,23993,'2009-12-30 13:59:00'),(2474843,23993,'2009-12-30 21:16:00'),(2477626,23993,'2009-12-31 13:54:00'),(2478437,23993,'2009-12-31 20:44:00'),(2480365,23993,'2009-12-24 08:00:00'),(2480625,23993,'2010-01-01 08:00:00'),(2481999,23993,'2009-12-25 08:00:00'),(2483015,23993,'2010-01-04 13:55:00'),(2484594,23993,'2010-01-04 20:56:00'),(2487667,23993,'2010-01-05 14:04:00'),(2489248,23993,'2010-01-05 20:58:00'),(2492303,23993,'2010-01-06 13:54:00'),(2493839,23993,'2010-01-06 20:57:00'),(2496846,23993,'2010-01-07 13:59:00'),(2498297,23993,'2010-01-07 20:47:00'),(2501151,23993,'2010-01-08 13:50:00'),(2502550,23993,'2010-01-08 20:55:00'),(2506664,23993,'2010-01-11 13:56:00'),(2507900,23993,'2010-01-11 20:46:00'),(2511065,23993,'2010-01-12 14:09:00'),(2512679,23993,'2010-01-12 20:56:00'),(2515543,23993,'2010-01-13 13:56:00'),(2516855,23993,'2010-01-13 20:45:00'),(2520056,23993,'2010-01-14 14:09:00'),(2521689,23993,'2010-01-14 20:57:00'),(2524550,23993,'2010-01-15 14:00:00'),(2525964,23993,'2010-01-15 20:50:00'),(2528985,23993,'2010-01-18 13:54:00'),(2535792,23993,'2010-01-19 08:00:00'),(2535795,23993,'2010-01-18 08:00:00'),(2538514,23993,'2010-01-20 13:58:00'),(2539778,23993,'2010-01-20 21:23:00'),(2542793,23993,'2010-01-21 13:56:00'),(2544230,23993,'2010-01-21 20:43:00'),(2547035,23993,'2010-01-22 13:58:00'),(2548382,23993,'2010-01-22 20:35:00'),(2552685,23993,'2010-01-25 13:58:00'),(2553920,23993,'2010-01-25 20:50:00'),(2557207,23993,'2010-01-26 13:57:00'),(2561777,23993,'2010-01-27 14:01:00'),(2562988,23993,'2010-01-27 20:47:00'),(2566359,23993,'2010-01-28 14:04:00'),(2567714,23993,'2010-01-28 21:16:00'),(2570529,23993,'2010-01-29 13:52:00'),(2571980,23993,'2010-01-29 20:41:00'),(2576198,23993,'2010-02-01 13:55:00'),(2577501,23993,'2010-02-01 20:45:00'),(2580654,23993,'2010-02-02 13:55:00'),(2582081,23993,'2010-02-02 21:06:00'),(2585151,23993,'2010-02-03 13:55:00'),(2586611,23993,'2010-02-03 20:47:00'),(2589635,23993,'2010-02-04 13:57:00'),(2590865,23993,'2010-02-04 20:51:00'),(2594095,23993,'2010-02-05 13:52:00'),(2595165,23993,'2010-02-05 20:50:00'),(2599755,23993,'2010-02-08 14:24:00'),(2600715,23993,'2010-02-08 21:17:00'),(2603989,23993,'2010-02-09 13:55:00'),(2605489,23993,'2010-02-09 21:07:00'),(2608447,23993,'2010-02-10 13:58:00'),(2609739,23993,'2010-02-10 20:43:00'),(2613010,23993,'2010-02-11 14:54:00'),(2614514,23993,'2010-02-11 21:00:00'),(2617448,23993,'2010-02-12 13:56:00'),(2618854,23993,'2010-02-12 21:20:00'),(2622639,23993,'2010-02-15 13:56:00'),(2623700,23993,'2010-02-15 20:45:00'),(2626601,23993,'2010-02-16 14:10:00'),(2627987,23993,'2010-02-16 20:40:00'),(2631012,23993,'2010-02-17 13:53:00'),(2632361,23993,'2010-02-17 20:46:00'),(2635594,23993,'2010-02-18 14:31:00'),(2637022,23993,'2010-02-18 20:32:00'),(2640116,23993,'2010-02-19 14:01:00'),(2641528,23993,'2010-02-19 20:57:00'),(2645922,23993,'2010-02-22 13:56:00'),(2649039,23993,'2010-02-22 21:30:00'),(2650399,23993,'2010-02-23 13:54:00'),(2651749,23993,'2010-02-23 21:10:00'),(2654932,23993,'2010-02-24 13:50:00'),(2656385,23993,'2010-02-24 20:53:00'),(2659549,23993,'2010-02-25 14:08:00'),(2660973,23993,'2010-02-25 21:10:00'),(2663864,23993,'2010-02-26 13:59:00'),(2665214,23993,'2010-02-26 20:54:00'),(2669740,23993,'2010-03-01 13:58:00'),(2671213,23993,'2010-03-01 21:12:00'),(2674222,23993,'2010-03-02 14:01:00'),(2675674,23993,'2010-03-02 20:56:00'),(2678808,23993,'2010-03-03 13:58:00'),(2680252,23993,'2010-03-03 20:56:00'),(2683446,23993,'2010-03-04 14:02:00'),(2684802,23993,'2010-03-04 20:55:00'),(2688092,23993,'2010-03-05 14:12:00'),(2691282,23993,'2010-03-05 20:51:00'),(2693618,23993,'2010-03-08 13:48:00'),(2695044,23993,'2010-03-08 20:50:00'),(2698260,23993,'2010-03-09 13:56:00'),(2699901,23993,'2010-03-09 20:58:00'),(2702908,23993,'2010-03-10 13:54:00'),(2704304,23993,'2010-03-10 20:54:00'),(2707694,23993,'2010-03-11 13:57:00'),(2709183,23993,'2010-03-11 21:04:00'),(2712193,23993,'2010-03-12 13:56:00'),(2713558,23993,'2010-03-12 20:50:00'),(2717784,23993,'2010-03-15 12:48:00'),(2718933,23993,'2010-03-15 20:03:00'),(2722402,23993,'2010-03-16 12:52:00'),(2723584,23993,'2010-03-16 20:03:00'),(2726685,23993,'2010-03-17 12:52:00'),(2728026,23993,'2010-03-17 19:59:00'),(2731456,23993,'2010-03-18 12:55:00'),(2732700,23993,'2010-03-18 19:52:00'),(2735664,23993,'2010-03-19 12:49:00'),(2737296,23993,'2010-03-19 19:59:00'),(2741265,23993,'2010-03-22 12:54:00'),(2742605,23993,'2010-03-22 19:50:00'),(2745968,23993,'2010-03-23 12:52:00'),(2747457,23993,'2010-03-23 19:53:00'),(2750550,23993,'2010-03-24 12:49:00'),(2751941,23993,'2010-03-24 19:41:00'),(2755082,23993,'2010-03-25 12:48:00'),(2756594,23993,'2010-03-25 19:57:00'),(2760077,23993,'2010-03-26 12:55:00'),(2761060,23993,'2010-03-26 20:41:00'),(2765504,23993,'2010-03-29 12:58:00'),(2766625,23993,'2010-03-29 20:16:00'),(2770138,23993,'2010-03-30 12:52:00'),(2771305,23993,'2010-03-30 20:14:00'),(2774547,23993,'2010-03-31 12:55:00'),(2776118,23993,'2010-03-31 19:49:00'),(2779327,23993,'2010-04-01 13:02:00'),(2780692,23993,'2010-04-01 19:54:00'),(2783620,23993,'2010-04-02 12:49:00'),(2784723,23993,'2010-04-02 19:52:00'),(2788387,23993,'2010-04-05 12:54:00'),(2789744,23993,'2010-04-05 19:51:00'),(2793046,23993,'2010-04-06 12:52:00'),(2794391,23993,'2010-04-06 20:07:00'),(2797691,23993,'2010-04-07 12:52:00'),(2801043,23993,'2010-04-07 19:58:00'),(2802262,23993,'2010-04-08 12:51:00'),(2803815,23993,'2010-04-08 19:58:00'),(2806924,23993,'2010-04-09 12:50:00'),(2808345,23993,'2010-04-09 20:00:00'),(2812651,23993,'2010-04-12 12:49:00'),(2814056,23993,'2010-04-12 20:31:00'),(2817196,23993,'2010-04-13 12:59:00'),(2818551,23993,'2010-04-13 19:51:00'),(2822004,23993,'2010-04-14 13:00:00'),(2823451,23993,'2010-04-14 19:54:00'),(2827061,23993,'2010-04-15 12:48:00'),(2828264,23993,'2010-04-15 20:24:00'),(2831694,23993,'2010-04-16 12:49:00'),(2832821,23993,'2010-04-16 20:19:00'),(2837031,23993,'2010-04-19 12:48:00'),(2838304,23993,'2010-04-19 20:05:00'),(2841755,23993,'2010-04-20 12:59:00'),(2842978,23993,'2010-04-20 20:20:00'),(2846195,23993,'2010-04-21 12:52:00'),(2847622,23993,'2010-04-21 19:58:00'),(2850762,23993,'2010-04-22 12:48:00'),(2852152,23993,'2010-04-22 19:55:00'),(2855605,23993,'2010-04-23 12:55:00'),(2857083,23993,'2010-04-23 20:25:00'),(2861116,23993,'2010-04-26 12:54:00'),(2862478,23993,'2010-04-26 19:57:00'),(2865937,23993,'2010-04-27 12:56:00'),(2869441,23993,'2010-04-27 20:00:00'),(2870911,23993,'2010-04-28 12:53:00'),(2872230,23993,'2010-04-28 20:03:00'),(2875559,23993,'2010-04-29 12:58:00'),(2876943,23993,'2010-04-29 19:57:00'),(2880167,23993,'2010-04-30 12:57:00'),(2881682,23993,'2010-04-30 19:55:00'),(2885744,23993,'2010-05-03 12:57:00'),(2887137,23993,'2010-05-03 19:57:00'),(2890563,23993,'2010-05-04 12:56:00'),(2891868,23993,'2010-05-04 20:09:00'),(2895228,23993,'2010-05-05 12:52:00'),(2896713,23993,'2010-05-05 19:54:00'),(2900026,23993,'2010-05-06 12:59:00'),(2901515,23993,'2010-05-06 20:00:00'),(2904720,23993,'2010-05-07 12:53:00'),(2906173,23993,'2010-05-07 19:58:00'),(2910649,23993,'2010-05-10 12:53:00'),(2912108,23993,'2010-05-10 20:30:00'),(2915231,23993,'2010-05-11 12:54:00'),(2918820,23993,'2010-05-11 20:08:00'),(2920064,23993,'2010-05-12 12:53:00'),(2921459,23993,'2010-05-12 20:02:00'),(2924910,23993,'2010-05-13 12:47:00'),(2926484,23993,'2010-05-13 20:00:00'),(2929614,23993,'2010-05-14 12:53:00'),(2931040,23993,'2010-05-14 19:48:00'),(2935329,23993,'2010-05-17 12:53:00'),(2936938,23993,'2010-05-17 19:52:00'),(2940377,23993,'2010-05-18 12:55:00'),(2941808,23993,'2010-05-18 20:02:00'),(2945120,23993,'2010-05-19 12:52:00'),(2946463,23993,'2010-05-19 20:07:00'),(2950115,23993,'2010-05-20 12:58:00'),(2951195,23993,'2010-05-20 20:57:00'),(2954457,23993,'2010-05-21 13:05:00'),(2955896,23993,'2010-05-21 20:05:00'),(2960102,23993,'2010-05-24 12:56:00'),(2961612,23993,'2010-05-24 19:58:00'),(2965192,23993,'2010-05-25 12:58:00'),(2966782,23993,'2010-05-25 20:06:00'),(2970082,23993,'2010-05-26 12:58:00'),(2972742,23993,'2010-05-26 19:45:00'),(2975308,23993,'2010-05-27 12:58:00'),(2976599,23993,'2010-05-27 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/*!40000 ALTER TABLE `records` ENABLE KEYS */;
UNLOCK TABLES;

--
-- Dumping routines for database 'test'
--
/*!50003 DROP FUNCTION IF EXISTS `ConvertGMTDateToLocalDate` */;
/*!50003 SET @saved_cs_client = @@character_set_client */ ;
/*!50003 SET @saved_cs_results = @@character_set_results */ ;
/*!50003 SET @saved_col_connection = @@collation_connection */ ;
/*!50003 SET character_set_client = latin1 */ ;
/*!50003 SET character_set_results = latin1 */ ;
/*!50003 SET collation_connection = latin1_swedish_ci */ ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`%`*/ /*!50003 FUNCTION `ConvertGMTDateToLocalDate`(
WorkDate datetime,
TimezoneOffset decimal(3,1),
DSTEnabled tinyint(3) unsigned,
TimezoneDSTOffset decimal(3,1)
) RETURNS datetime
DETERMINISTIC
BEGIN

DECLARE LocalDateTime datetime;
DECLARE DSTStart datetime;
DECLARE DSTEnd datetime;
DECLARE TimezoneOffsetHour int;
DECLARE TimezoneOffsetMinute int;
DECLARE TimezoneDSTOffsetHour int;
DECLARE TimezoneDSTOffsetMinute int;

IF ( TimezoneOffset < 0 )
THEN
SET TimezoneOffsetHour = CEILING(TimezoneOffset);
SET TimezoneOffsetMinute = ABS(60 * (TimezoneOffset - CEILING(TimezoneOffset)));
ELSE
SET TimezoneOffsetHour = FLOOR(TimezoneOffset);
SET TimezoneOffsetMinute = ABS(60 * (TimezoneOffset - FLOOR(TimezoneOffset)));
END IF;

IF ( TimezoneDSTOffset < 0 )
THEN
SET TimezoneDSTOffsetHour = CEILING(TimezoneDSTOffset);
SET TimezoneDSTOffsetMinute = ABS(60 * (TimezoneDSTOffset - CEILING(TimezoneDSTOffset)));
ELSE
SET TimezoneDSTOffsetHour = FLOOR(TimezoneDSTOffset);
SET TimezoneDSTOffsetMinute = ABS(60 * (TimezoneDSTOffset - FLOOR(TimezoneDSTOffset)));
END IF;

IF ( DSTEnabled = 1 )
THEN
SET DSTStart = GetDaylightSavingTimeStart(YEAR(WorkDate));
SET DSTEnd = GetDaylightSavingTimeEnd(YEAR(WorkDate));

SET DSTStart = STR_TO_DATE(CONCAT(YEAR(DSTStart),'-',MONTH(DSTStart),'-',DAY(DSTStart),'-',ABS(TimezoneOffsetHour)+2,'-',TimezoneOffsetMinute,'-0'),'%Y-%m-%d-%H-%i-%s');
SET DSTEnd = STR_TO_DATE(CONCAT(YEAR(DSTEnd),'-',MONTH(DSTEnd),'-',DAY(DSTEnd),'-',ABS(TimezoneDSTOffsetHour)+2,'-',TimezoneDSTOffsetMinute,'-0'),'%Y-%m-%d-%H-%i-%s');

IF ( WorkDate >= DSTStart AND WorkDate < DSTEnd )
THEN
SET LocalDateTime = DATE_ADD(WorkDate,INTERVAL CONCAT(TimezoneDSTOffsetHour,':',TimezoneDSTOffsetMinute) HOUR_MINUTE);
ELSE
SET LocalDateTime = DATE_ADD(WorkDate,INTERVAL CONCAT(TimezoneOffsetHour,':',TimezoneOffsetMinute) HOUR_MINUTE);
END IF;
ELSE
SET LocalDateTime = DATE_ADD(WorkDate,INTERVAL CONCAT(TimezoneOffsetHour,':',TimezoneOffsetMinute) HOUR_MINUTE);
END IF;

RETURN LocalDateTime;

END */;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
/*!50003 SET character_set_results = @saved_cs_results */ ;
/*!50003 SET collation_connection = @saved_col_connection */ ;
/*!50003 DROP FUNCTION IF EXISTS `GetDaylightSavingTimeEnd` */;
/*!50003 SET @saved_cs_client = @@character_set_client */ ;
/*!50003 SET @saved_cs_results = @@character_set_results */ ;
/*!50003 SET @saved_col_connection = @@collation_connection */ ;
/*!50003 SET character_set_client = utf8 */ ;
/*!50003 SET character_set_results = utf8 */ ;
/*!50003 SET collation_connection = utf8_general_ci */ ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`%`*/ /*!50003 FUNCTION `GetDaylightSavingTimeEnd`(
TheYear int
) RETURNS date
DETERMINISTIC
BEGIN

DECLARE TheEndDate date;
DECLARE LastSunday int;

IF ( TheYear < 2007 )
THEN
SET LastSunday = GetNthOccOfDayInMonth(5,1,10,TheYear);
IF ( LastSunday <= -1 )
THEN
SET TheEndDate = STR_TO_DATE(CONCAT(TheYear,'-10-',GetNthOccOfDayInMonth(4,1,10,TheYear)),'%Y-%m-%d');
ELSE
SET TheEndDate = STR_TO_DATE(CONCAT(TheYear,'-10-',LastSunday),'%Y-%m-%d');
END IF;
ELSE
SET TheEndDate = STR_TO_DATE(CONCAT(TheYear,'-11-',GetNthOccOfDayInMonth(1,1,11,TheYear)),'%Y-%m-%d');
END IF;

RETURN TheEndDate;

END */;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
/*!50003 SET character_set_results = @saved_cs_results */ ;
/*!50003 SET collation_connection = @saved_col_connection */ ;
/*!50003 DROP FUNCTION IF EXISTS `GetDaylightSavingTimeStart` */;
/*!50003 SET @saved_cs_client = @@character_set_client */ ;
/*!50003 SET @saved_cs_results = @@character_set_results */ ;
/*!50003 SET @saved_col_connection = @@collation_connection */ ;
/*!50003 SET character_set_client = utf8 */ ;
/*!50003 SET character_set_results = utf8 */ ;
/*!50003 SET collation_connection = utf8_general_ci */ ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`%`*/ /*!50003 FUNCTION `GetDaylightSavingTimeStart`(
TheYear int
) RETURNS date
DETERMINISTIC
BEGIN

DECLARE TheStartDate date;

IF ( TheYear < 2007 )
THEN
SET TheStartDate = STR_TO_DATE(CONCAT(TheYear,'-4-',GetNthOccOfDayInMonth(1,1,4,TheYear)),'%Y-%m-%d');
ELSE
SET TheStartDate = STR_TO_DATE(CONCAT(TheYear,'-3-',GetNthOccOfDayInMonth(2,1,3,TheYear)),'%Y-%m-%d');
END IF;

RETURN TheStartDate;

END */;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
/*!50003 SET character_set_results = @saved_cs_results */ ;
/*!50003 SET collation_connection = @saved_col_connection */ ;
/*!50003 DROP FUNCTION IF EXISTS `GetNthOccOfDayInMonth` */;
/*!50003 SET @saved_cs_client = @@character_set_client */ ;
/*!50003 SET @saved_cs_results = @@character_set_results */ ;
/*!50003 SET @saved_col_connection = @@collation_connection */ ;
/*!50003 SET character_set_client = utf8 */ ;
/*!50003 SET character_set_results = utf8 */ ;
/*!50003 SET collation_connection = utf8_general_ci */ ;
/*!50003 SET @saved_sql_mode = @@sql_mode */ ;
/*!50003 SET sql_mode = '' */ ;
DELIMITER ;;
/*!50003 CREATE*/ /*!50020 DEFINER=`root`@`%`*/ /*!50003 FUNCTION `GetNthOccOfDayInMonth`(
NthOccurrence int,
TheDayOfWeek int,
TheMonth tinyint,
TheYear int
) RETURNS int(11)
DETERMINISTIC
BEGIN
DECLARE TheDayInMonth int(11);
DECLARE DateToTest date;
DECLARE DayOfWeekToTest int(11);

SET TheDayInMonth = 0;
SET DateToTest = STR_TO_DATE(CONCAT(TheYear,'-',TheMonth,'-',1),'%Y-%m-%d');
SET DayOfWeekToTest = DAYOFWEEK(DateToTest);

IF ( TheDayOfWeek < DayOfWeekToTest )
THEN
SET TheDayInMonth = (1 + (NthOccurrence*7) + ((TheDayOfWeek-DayOfWeekToTest) % 7));
ELSE
SET TheDayInMonth = (1 + ((NthOccurrence-1)*7) + ((TheDayOfWeek-DayOfWeekToTest) % 7));
END IF;

IF ( TheDayInMonth > DAY(LAST_DAY(DateToTest)) OR TheDayInMonth < 1 )
THEN
RETURN -1;
ELSE
RETURN TheDayInMonth;
END IF;

END */;;
DELIMITER ;
/*!50003 SET sql_mode = @saved_sql_mode */ ;
/*!50003 SET character_set_client = @saved_cs_client */ ;
/*!50003 SET character_set_results = @saved_cs_results */ ;
/*!50003 SET collation_connection = @saved_col_connection */ ;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

-- Dump completed on 2011-01-30 23:18:32

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Subject Views Written By Posted
Query Takes Longer Each Time Its Run 2572 anthony 01/26/2011 02:59PM
Re: Query Takes Longer Each Time Its Run 811 Shawn Taylor 01/27/2011 02:04PM
Re: Query Takes Longer Each Time Its Run 795 anthony 01/27/2011 02:35PM
Re: Query Takes Longer Each Time Its Run 846 Rick James 01/27/2011 10:35PM
Re: Query Takes Longer Each Time Its Run 877 anthony 01/27/2011 10:59PM
Re: Query Takes Longer Each Time Its Run 737 Rick James 01/28/2011 10:02AM
Re: Query Takes Longer Each Time Its Run 1159 anthony 01/28/2011 01:38PM
Re: Query Takes Longer Each Time Its Run 696 Rick James 01/29/2011 01:18AM
Re: Query Takes Longer Each Time Its Run 731 anthony 01/30/2011 07:20PM
Re: Query Takes Longer Each Time Its Run 682 Rick James 01/30/2011 11:02PM
Re: Query Takes Longer Each Time Its Run 634 anthony 01/31/2011 01:22AM
Re: Query Takes Longer Each Time Its Run 838 anthony 01/31/2011 01:25AM
Re: Query Takes Longer Each Time Its Run 764 Rick James 02/01/2011 12:38AM
Re: Query Takes Longer Each Time Its Run 753 Rick James 02/01/2011 12:56AM
Re: Query Takes Longer Each Time Its Run 743 anthony 02/01/2011 01:23PM
Re: Query Takes Longer Each Time Its Run 895 Rick James 02/01/2011 08:41PM
Re: Query Takes Longer Each Time Its Run 1487 anthony 02/03/2011 02:04PM
Re: Query Takes Longer Each Time Its Run 923 Rick James 02/15/2011 09:24PM


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