{"id":37156,"date":"2019-10-31T22:16:03","date_gmt":"2019-10-31T19:16:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/bolshe-statistiki-sajta-v-svoyom-malenkom-hranilishhe\/"},"modified":"2019-10-31T22:16:03","modified_gmt":"2019-10-31T19:16:03","slug":"bolshe-statistiki-sajta-v-svoyom-malenkom-hranilishhe","status":"publish","type":"post","link":"https:\/\/prohoster.info\/es\/blog\/administrirovanie\/bolshe-statistiki-sajta-v-svoyom-malenkom-hranilishhe","title":{"rendered":"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Analizando las estad\u00edsticas del sitio, obtenemos una idea de lo que est\u00e1 sucediendo con \u00e9l. Comparamos los resultados con otros conocimientos sobre el producto o servicio y as\u00ed mejoramos nuestra experiencia.<\/p>\n<p>Cuando se ha completado el an\u00e1lisis de los primeros resultados, se reflexiona sobre la informaci\u00f3n y se sacan conclusiones, comienza la siguiente etapa. Surgen ideas: \u00bfqu\u00e9 pasar\u00eda si miramos los datos desde otro \u00e1ngulo?<\/p>\n<p>En esta etapa hay limitaciones en las herramientas de an\u00e1lisis. Esta es una de las razones por las que la herramienta Google Analytics no me result\u00f3 suficiente, debido a la capacidad limitada para ver y manipular mis datos.<\/p>\n<p>Siempre he querido cargar r\u00e1pidamente los datos b\u00e1sicos (metadatos), agregar otro nivel de agregaci\u00f3n o interpretar de otra manera los valores existentes.<\/p>\n<p>Esto es f\u00e1cil de hacer en <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/462337\/\">su peque\u00f1o almac\u00e9n<\/a><\/noindex> basado en el archivo access.log y para ello es suficiente con el lenguaje SQL.<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p>Entonces, \u00bfqu\u00e9 preguntas quer\u00eda responder?<\/p>\n<h4>Qu\u00e9 y cu\u00e1ndo se cambi\u00f3 en el sitio<\/h4>\n<p>\nLa historia de los cambios en los datos b\u00e1sicos (metadatos) siempre es interesante.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/7613bf138d6026c808e2c4b2ee743d66.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Consulta SQL del informe<\/b><\/p>\n<pre><code class=\"sql\">SELECT\n\t1 as 'SideStackedBar: Actualizaciones de Contenido por Meses',\n\tstrftime('%m\/%Y', datetime(UPDATE_DT, 'unixepoch')) AS 'D\u00eda',\n\tCOUNT(CASE WHEN PAGE_TITLE != 'n.a.' THEN DIM_REQUEST_ID END) AS 'Actualizaciones de p\u00e1ginas web',\n\tCOUNT(CASE WHEN PAGE_DESCR = 'IMAGES' THEN DIM_REQUEST_ID END) AS 'Cargas de im\u00e1genes',\n\tCOUNT(CASE WHEN PAGE_DESCR = 'VIDEO' THEN DIM_REQUEST_ID END) AS 'Cargas de videos',\n\tCOUNT(CASE WHEN PAGE_DESCR = 'AUDIO' THEN DIM_REQUEST_ID END) AS 'Cargas de audio'\nFROM DIM_REQUEST\nWHERE PAGE_TITLE != 'n.a.' OR PAGE_DESCR != 'n.a.'\nGROUP BY strftime('%m\/%Y', datetime(UPDATE_DT, 'unixepoch'))\nORDER BY UPDATE_DT<\/code><\/pre>\n<p>Por ejemplo, en alg\u00fan momento se llev\u00f3 a cabo una optimizaci\u00f3n de b\u00fasqueda o se a\u00f1adi\u00f3 nuevo contenido al sitio, por lo tanto, se espera un aumento en el tr\u00e1fico.<\/p>\n<h4>Grupos de usuarios<\/h4>\n<p>\nEl ejemplo m\u00e1s sencillo de un grupo puede ser un agente de usuario o el nombre del sistema operativo. <\/p>\n<p>La medici\u00f3n de los agentes de usuario ha acumulado alrededor de mil registros y me interesaba ver la din\u00e1mica de distribuci\u00f3n de los agentes dentro del grupo.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/73d908a13f40b4f2c95c57e1e2d55945.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Consulta SQL del informe<\/b><\/p>\n<pre><code class=\"sql\">SELECT\n\t1 AS 'SideStackedBar: Agentes de Usuarios',\n\tAGENT_OS AS 'OS',\n\tSUM(CASE WHEN AGENT_BOT = 'n.a.' THEN 1 ELSE 0 END ) AS 'Agente de Usuario de Usuarios',\n\tSUM(CASE WHEN AGENT_BOT != 'n.a.' THEN 1 ELSE 0 END ) AS 'Agente de Usuario de Bots'\nFROM DIM_USER_AGENT\nWHERE DIM_USER_AGENT_ID != -1\nGROUP BY AGENT_OS\nORDER BY 3 DESC<\/code><\/pre>\n<p>La mayor cantidad de combinaciones de agentes provienen del mundo de Windows. Entre los indefinidos se encuentran opciones como WhatsApp, PocketImageCache, PlayStation, SmartTV, etc. <\/p>\n<h4>Actividad de grupos de usuarios por semanas<\/h4>\n<p>\nAl combinar algunos grupos, se puede observar la distribuci\u00f3n de su actividad.<\/p>\n<p>Por ejemplo, los usuarios del cl\u00faster de Linux consumen m\u00e1s tr\u00e1fico en el sitio que los dem\u00e1s.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/b3cba5ca4408ceb6ed5bfc319664d02c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Consulta SQL del informe<\/b><\/p>\n<pre><code class=\"sql\">SELECT\n1 as 'StackedBar: Volumen de Tr\u00e1fico por SO de Usuario y por Semana',\nstrftime('%W semana', datetime(FCT.EVENT_DT, 'unixepoch')) AS 'Semana',\nSUM(CASE WHEN USG.AGENT_OS IN ('Android', 'Linux') THEN FCT.BYTES ELSE 0 END) \/ 1000 AS 'Usuarios Android\/Linux',\nSUM(CASE WHEN USG.AGENT_OS IN ('Windows') THEN FCT.BYTES ELSE 0 END) \/ 1000 AS 'Usuarios Windows',\nSUM(CASE WHEN USG.AGENT_OS IN ('Macintosh', 'iOS') THEN FCT.BYTES ELSE 0 END) \/ 1000 AS 'Usuarios Mac\/iOS',\nSUM(CASE WHEN USG.AGENT_OS IN ('n.a.', 'BlackBerry') THEN FCT.BYTES ELSE 0 END) \/ 1000 AS 'Otros'\nFROM\n  FCT_ACCESS_USER_AGENT_DD FCT,\n  DIM_USER_AGENT USG,\n  DIM_HTTP_STATUS HST\nWHERE FCT.DIM_USER_AGENT_ID = USG.DIM_USER_AGENT_ID\n  AND FCT.DIM_HTTP_STATUS_ID = HST.DIM_HTTP_STATUS_ID\n  AND USG.AGENT_BOT = 'n.a.' \/* solo usuarios *\/\n  AND HST.STATUS_GROUP IN ('Exitoso') \/* buenas p\u00e1ginas *\/\n  AND datetime(FCT.EVENT_DT, 'unixepoch') &gt; date('now', '-3 month')\nGROUP BY strftime('%W semana', datetime(FCT.EVENT_DT, 'unixepoch'))\nORDER BY FCT.EVENT_DT<\/code><\/pre>\n<h4>Consumo intensivo de tr\u00e1fico<\/h4>\n<p>\nLa tabla muestra los grupos de usuarios m\u00e1s activos y los d\u00edas de su actividad.<br \/>\nLos m\u00e1s activos pertenecen al cl\u00faster de Linux.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/4ff0758ef934adddd5b2c99eab3b9141.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Consulta SQL del informe<\/b><\/p>\n<pre><code class=\"sql\">SELECT\n1 AS 'Tabla: Agente de Usuario con Uso Alto',\nstrftime('%d.%m.%Y', datetime(FCT.EVENT_DT, 'unixepoch')) AS 'D\u00eda',\nROUND(1.0 * SUM(FCT.BYTES) \/ 1000000, 1) AS 'Tr\u00e1fico MB',\nROUND(1.0 * SUM(FCT.IP_CNT) \/ SUM(1), 1) AS 'IPs',\nROUND(1.0 * SUM(FCT.REQUEST_CNT) \/ SUM(1), 1) AS 'Solicitudes',\nUSA.DIM_USER_AGENT_ID AS 'ID',\nMAX(USA.USER_AGENT_NK) AS 'Agente de Usuario',\nMAX(USA.AGENT_BOT) AS 'Bot'\nFROM\nFCT_ACCESS_USER_AGENT_DD FCT,\nDIM_USER_AGENT USA\nWHERE FCT.DIM_USER_AGENT_ID = USA.DIM_USER_AGENT_ID\n  AND datetime(FCT.EVENT_DT, 'unixepoch') &gt;= date('now', '-30 day')\nGROUP BY USA.DIM_USER_AGENT_ID, strftime('%d.%m.%Y', datetime(FCT.EVENT_DT, 'unixepoch')) \nORDER BY SUM(FCT.BYTES) DESC, FCT.EVENT_DT\nLIMIT 10<\/code><\/pre>\n<p>Utilizando los atributos d\u00eda e ID de agente, se puede encontrar y rastrear r\u00e1pidamente las estad\u00edsticas por d\u00edas de grupos de usuarios espec\u00edficos. Si es necesario, se puede encontrar r\u00e1pidamente informaci\u00f3n detallada en la tabla de etapa.<\/p>\n<h4>\u00bfC\u00f3mo obtener informaci\u00f3n?<\/h4>\n<p>\n<noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/462337\/\">La informaci\u00f3n del archivo access.log<\/a><\/noindex> se puede hacer a\u00fan m\u00e1s eficiente si se integran fuentes de datos adicionales, se introducen nuevos niveles de agregaci\u00f3n y agrupaci\u00f3n.<\/p>\n<h4>Datos y entidades b\u00e1sicas<\/h4>\n<p>\nLos datos b\u00e1sicos incluyen informaci\u00f3n sobre las entidades: p\u00e1ginas web, im\u00e1genes, contenido de v\u00eddeo y audio, en el caso de una tienda, productos. <\/p>\n<p>Las entidades en s\u00ed act\u00faan como dimensiones, y el proceso de guardar los cambios de atributos se llama historizaci\u00f3n. En la base de datos, este proceso a menudo se realiza en forma de dimensiones que cambian lentamente (SCD).<\/p>\n<p>Las fuentes de datos b\u00e1sicas pueden ser sistemas muy diversos, por lo tanto, casi siempre es necesario integrarlos.<\/p>\n<h4>Dimensi\u00f3n de cambio lento<\/h4>\n<p>\nLa dimensi\u00f3n DIM_REQUEST contendr\u00e1 informaci\u00f3n sobre las solicitudes en el sitio en forma hist\u00f3rica.<\/p>\n<p><b class=\"spoiler_title\">Tabla SCD2<\/b><\/p>\n<pre><code class=\"sql\">CREAR TABLA DIM_REQUEST ( \n  DIM_REQUEST_ID      ENTERO NO NULO CLAVE PRINCIPAL AUTOINCREMENT,\n  DIM_REQUEST_ID_HIST ENTERO NO NULO POR DEFECTO -1,\n  REQUEST_NK          TEXTO NO NULO POR DEFECTO 'n.a.', \n  PAGE_TITLE          TEXTO NO NULO POR DEFECTO 'n.a.',\n  PAGE_DESCR          TEXTO NO NULO POR DEFECTO 'n.a.',\n  PAGE_KEYWORDS       TEXTO NO NULO POR DEFECTO 'n.a.',\n  DELETE_FLAG         ENTERO NO NULO POR DEFECTO 0,\n  UPDATE_DT           ENTERO NO NULO POR DEFECTO 0,\n  \u00daNICO (REQUEST_NK, DIM_REQUEST_ID_HIST)\n);\nINSERTAR EN DIM_REQUEST (DIM_REQUEST_ID) VALORES (-1);<\/code><\/pre>\n<p>Adem\u00e1s, crearemos una vista que siempre muestre todos los registros en su \u00faltimo estado. Esto es necesario para cargar la propia dimensi\u00f3n.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/cea3301b30338dfd5099db60342e8d84.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Vista actual SCD2<\/b><\/p>\n<pre><code class=\"sql\">\/* Content: actual view on scd table *\/\nSELECT HI.DIM_REQUEST_ID,\n  HI.DIM_REQUEST_ID_HIST,\n  HI.REQUEST_NK,\n  HI.PAGE_TITLE,\n  HI.PAGE_DESCR,\n  HI.PAGE_KEYWORDS,\n  NK.CNT AS HIST_CNT,\n  HI.DELETE_FLAG,\n  strftime('%d.%m.%Y %H:%M', datetime(HI.UPDATE_DT, 'unixepoch')) AS UPDATE_DT\nFROM\n  ( SELECT REQUEST_NK, MAX(DIM_REQUEST_ID) AS DIM_REQUEST_ID, SUM(1) AS CNT\n    FROM DIM_REQUEST\n    GROUP BY REQUEST_NK\n  ) NK,\n  DIM_REQUEST HI\nWHERE 1 = 1\n  AND NK.REQUEST_NK = HI.REQUEST_NK\n  AND NK.DIM_REQUEST_ID = HI.DIM_REQUEST_ID;<\/code><\/pre>\n<p>Y una vista donde se recopila informaci\u00f3n hist\u00f3rica para cada registro. Esto es necesario para construir una relaci\u00f3n hist\u00f3ricamente precisa con los hechos.<\/p>\n<p><img decoding=\"async\" alt=\"M\u00e1s estad\u00edsticas del sitio en su peque\u00f1o almacenamiento\" src=\"\/wp-content\/uploads\/2019\/08\/05afeae70b441a7aa4a17ae70646285e.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b class=\"spoiler_title\">Vista hist\u00f3rica SCD2<\/b><\/p>\n<pre><code class=\"sql\">\/* Content: actual view on scd table *\/\nSELECT SCD.DIM_REQUEST_ID,\n  SCD.DIM_REQUEST_ID_HIST,\n  SCD.REQUEST_NK,\n  SCD.PAGE_TITLE,\n  SCD.PAGE_DESCR,\n  SCD.PAGE_KEYWORDS,\n  SCD.DELETE_FLAG,\n  CASE\n    WHEN HIS.UPDATE_DT IS NULL\n    THEN 1\n    ELSE 0 END ACTIVE_FLAG,\n  SCD.DIM_REQUEST_ID_HIST AS ID_FROM,\n  SCD.DIM_REQUEST_ID AS ID_TO,\n  CASE\n    WHEN SCD.DIM_REQUEST_ID_HIST=-1\n    THEN 3600\n    ELSE IFNULL(SCD.UPDATE_DT,3600)\n  END AS TIME_FROM,\n  CASE\n    WHEN HIS.UPDATE_DT IS NULL\n    THEN 253370764800\n    ELSE HIS.UPDATE_DT\n  END AS TIME_TO,\n  CASE\n    WHEN SCD.DIM_REQUEST_ID_HIST=-1\n    THEN STRFTIME('%d.%m.%Y %H:%M', DATETIME(3600, 'unixepoch'))\n    ELSE STRFTIME('%d.%m.%Y %H:%M', DATETIME(IFNULL(SCD.UPDATE_DT,3600), 'unixepoch'))\n  END AS ACTIVE_FROM,\n  CASE\n    WHEN HIS.UPDATE_DT IS NULL\n    THEN STRFTIME('%d.%m.%Y %H:%M', DATETIME(253370764800, 'unixepoch'))\n    ELSE STRFTIME('%d.%m.%Y %H:%M', DATETIME(HIS.UPDATE_DT, 'unixepoch'))\n  END AS ACTIVE_TO\nFROM\n  DIM_REQUEST SCD\n  LEFT OUTER JOIN DIM_REQUEST HIS\n  ON SCD.REQUEST_NK = HIS.REQUEST_NK AND SCD.DIM_REQUEST_ID = HIS.DIM_REQUEST_ID_HIST;<\/code><\/pre>\n<h4>Agregaci\u00f3n de datos<\/h4>\n<p>\nLa agregaci\u00f3n permite evaluar los datos a un nivel m\u00e1s alto y detectar anomal\u00edas y tendencias que no son visibles en los informes detallados.<\/p>\n<p>Por ejemplo, en la dimensi\u00f3n con c\u00f3digos de estado de solicitudes DIM_HTTP_STATUS agregaremos el grupo:<\/p>\n<blockquote><p>ESTADO \/ GRUPO<br \/>\n0xx \/ n.a.<br \/>\n1xx \/ Informativo<br \/>\n2xx \/ Exitoso<br \/>\n3xx \/ Redirecci\u00f3n<br \/>\n4xx \/ Error del Cliente<br \/>\n5xx \/ Error del Servidor<\/p><\/blockquote>\n<p> La dimensi\u00f3n de agentes de usuario DIM_USER_AGENT contendr\u00e1 los atributos AGENT_OS y AGENT_BOT, que corresponden a los grupos. Estos se pueden rellenar durante el proceso ETL:<\/p>\n<p><b class=\"spoiler_title\">Carga de DIM_USER_AGENT<\/b><\/p>\n<pre><code class=\"sql\">\/* Propagate the user agent from access log *\/\nINSERT INTO DIM_USER_AGENT (USER_AGENT_NK, AGENT_OS, AGENT_ENGINE, AGENT_DEVICE, AGENT_BOT, UPDATE_DT)\nWITH CLS AS (\n\tSELECT BROWSER\n\tFROM STG_ACCESS_LOG WHERE LENGTH(BROWSER)&gt;1\n\tGROUP BY BROWSER\n)\nSELECT\n\tCLS.BROWSER AS USER_AGENT_NK,\n\tCASE\n\tWHEN INSTR(CLS.BROWSER,'Macintosh')&gt;0\n\t\tTHEN 'Macintosh'\n\tWHEN INSTR(CLS.BROWSER,'iPhone')&gt;0\n\t\t\t OR INSTR(CLS.BROWSER,'iPad')&gt;0\n\t\t\t OR INSTR(CLS.BROWSER,'iPod')&gt;0\n\t\t\t OR INSTR(CLS.BROWSER,'Apple TV')&gt;0\n\t\t\t OR INSTR(CLS.BROWSER,'Darwin')&gt;0\n\t\tTHEN 'iOS'\n\tWHEN INSTR(CLS.BROWSER,'Android')&gt;0\n\t\tTHEN 'Android'\n\tWHEN INSTR(CLS.BROWSER,'X11;')&gt;0 OR INSTR(CLS.BROWSER,'Wayland;')&gt;0 OR INSTR(CLS.BROWSER,'linux-gnu')&gt;0\n\t\tTHEN 'Linux'\n\tWHEN INSTR(CLS.BROWSER,'BB10;')&gt;0 OR INSTR(CLS.BROWSER,'BlackBerry')&gt;0\n\t\tTHEN 'BlackBerry'\n\tWHEN INSTR(CLS.BROWSER,'Windows')&gt;0\n\t\tTHEN 'Windows'\n\tELSE 'n.a.' END AS AGENT_OS, -- OS\n\tCASE\n\tWHEN INSTR(CLS.BROWSER,'AppleCoreMedia')&gt;0\n\t\tTHEN 'AppleWebKit'\n\tWHEN INSTR(CLS.BROWSER,') ')&gt;1 AND LENGTH(CLS.BROWSER)&gt;INSTR(CLS.BROWSER,') ')\n\t\tTHEN COALESCE(SUBSTR(CLS.BROWSER, INSTR(CLS.BROWSER,') ')+2, LENGTH(CLS.BROWSER) - INSTR(CLS.BROWSER,') ')-1), 'N\/A')\n\tELSE 'n.a.' END AS AGENT_ENGINE, -- Engine\n\tCASE\n\tWHEN INSTR(CLS.BROWSER,'iPhone')&gt;0\n\t\tTHEN 'iPhone'\n\tWHEN INSTR(CLS.BROWSER,'iPad')&gt;0\n\t\tTHEN 'iPad'\n\tWHEN INSTR(CLS.BROWSER,'iPod')&gt;0\n\t\tTHEN 'iPod'\n\tWHEN INSTR(CLS.BROWSER,'Apple TV')&gt;0\n\t\tTHEN 'Apple TV'\n\tWHEN INSTR(CLS.BROWSER,'Android ')&gt;0 AND INSTR(CLS.BROWSER,'Build')&gt;0\n\t\tTHEN COALESCE(SUBSTR(CLS.BROWSER, INSTR(CLS.BROWSER,'Android '), INSTR(CLS.BROWSER,'Build')-INSTR(CLS.BROWSER,'Android ')), 'n.a.')\n\tWHEN INSTR(CLS.BROWSER,'Android ')&gt;0 AND INSTR(CLS.BROWSER,'MIUI')&gt;0\n\t\tTHEN COALESCE(SUBSTR(CLS.BROWSER, INSTR(CLS.BROWSER,'Android '), INSTR(CLS.BROWSER,'MIUI')-INSTR(CLS.BROWSER,'Android ')), 'n.a.')\n\tELSE 'n.a.' END AS AGENT_DEVICE, -- Device\n\tCASE\n\tWHEN INSTR(LOWER(CLS.BROWSER),'yandex.com')&gt;0\n\t\tTHEN 'yandex'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'googlebot')&gt;0\n\t\tTHEN 'google'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'bingbot')&gt;0\n\t\tTHEN 'microsoft'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'ahrefsbot')&gt;0\n\t\tTHEN 'ahrefs'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'jobboersebot')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'jobkicks')&gt;0\n\t\tTHEN 'job.de'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'mail.ru')&gt;0\n\t\tTHEN 'mail.ru'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'baiduspider')&gt;0\n\t\tTHEN 'baidu'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'mj12bot')&gt;0\n\t\tTHEN 'majestic-12'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'duckduckgo')&gt;0\n\t\tTHEN 'duckduckgo'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'bytespider')&gt;0\n\t\tTHEN 'bytespider'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'360spider')&gt;0\n\t\tTHEN 'so.360.cn'\n\tWHEN INSTR(LOWER(CLS.BROWSER),'compatible')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'http')&gt;0\n\t\tOR INSTR(LOWER(CLS.BROWSER),'libwww')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'spider')&gt;0\n\t\tOR INSTR(LOWER(CLS.BROWSER),'java')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'python')&gt;0\n\t\tOR INSTR(LOWER(CLS.BROWSER),'robot')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'curl')&gt;0 OR INSTR(LOWER(CLS.BROWSER),'wget')&gt;0\n\t\tTHEN 'other'\n\tELSE 'n.a.' END AS AGENT_BOT, -- Bot\n\tSTRFTIME('%s','now') AS UPDATE_DT\nFROM CLS\nLEFT OUTER JOIN DIM_USER_AGENT TRG\nON CLS.BROWSER = TRG.USER_AGENT_NK\nWHERE TRG.DIM_USER_AGENT_ID IS NULL<\/code><\/pre>\n<h4>Integraci\u00f3n de datos<\/h4>\n<p>\nIncluye la organizaci\u00f3n de la transferencia de datos desde el sistema operativo al informe. Para ello, es necesario crear una tabla de etapa con una estructura similar a la del origen.<\/p>\n<p>En la etapa, la informaci\u00f3n sobre las p\u00e1ginas web proviene de una copia de seguridad del CMS en forma de consultas de inserci\u00f3n.<\/p>\n<p>La carga de la tabla hist\u00f3rica DIM_REQUEST con datos b\u00e1sicos se realiza en tres etapas: carga de nuevas claves y atributos, actualizaci\u00f3n de existentes y registro de registros eliminados.<\/p>\n<p><b class=\"spoiler_title\">Carga de nuevos registros SCD2<\/b><\/p>\n<pre><code class=\"sql\">\/* Load request table SCD from master data *\/\nINSERT INTO DIM_REQUEST (DIM_REQUEST_ID_HIST, REQUEST_NK, PAGE_TITLE, PAGE_DESCR, PAGE_KEYWORDS, DELETE_FLAG, UPDATE_DT)\nWITH CLS  AS ( -- prepare keys\n\tSELECT\n\t'\/' || NAME AS REQUEST_NK,\n\tTITLE       AS PAGE_TITLE,\n\tCASE WHEN DESCRIPTION = '' OR DESCRIPTION IS NULL\n\t     THEN 'n.a.' ELSE DESCRIPTION\n\tEND AS PAGE_DESCR,\n\tCASE WHEN KEYWORDS = '' OR KEYWORDS IS NULL\n\t     THEN 'n.a.' ELSE KEYWORDS\n\tEND AS PAGE_KEYWORDS\n\tFROM STG_CMS_MENU\n\tWHERE CONTENT_TYPE != 'folder' -- only web pages\n\t  AND PAGE_TITLE != 'n.a.' -- master data which make sense\n)\n\/* new records from stage: CLS *\/\nSELECT\n\t-1 AS DIM_REQUEST_ID_HIST,\n\tCLS.REQUEST_NK,\n\tCLS.PAGE_TITLE,\n\tCLS.PAGE_DESCR,\n\tCLS.PAGE_KEYWORDS,\n\t0 AS DELETE_FLAG,\n\tSTRFTIME('%s','now') AS UPDATE_DT\nFROM CLS\nLEFT OUTER JOIN\n (\n\tSELECT\n\tDIM_REQUEST_ID,\n\tREQUEST_NK,\n\tPAGE_TITLE,\n\tPAGE_DESCR,\n\tPAGE_KEYWORDS\n\tFROM DIM_REQUEST_V_ACT\n) TRG ON CLS.REQUEST_NK = TRG.REQUEST_NK\nWHERE TRG.REQUEST_NK IS NULL -- no such record in data mart<\/code><\/pre>\n<p><b class=\"spoiler_title\">Actualizaci\u00f3n de atributos SCD2<\/b><\/p>\n<pre><code class=\"sql\">\/* Load request table SCD from master data *\/\nINSERT INTO DIM_REQUEST (DIM_REQUEST_ID_HIST, REQUEST_NK, PAGE_TITLE, PAGE_DESCR, PAGE_KEYWORDS, DELETE_FLAG, UPDATE_DT)\nWITH CLS  AS ( -- prepare keys\n\tSELECT\n\t'\/' || NAME AS REQUEST_NK,\n\tTITLE       AS PAGE_TITLE,\n\tCASE WHEN DESCRIPTION = '' OR DESCRIPTION IS NULL\n\t     THEN 'n.a.' ELSE DESCRIPTION\n\tEND AS PAGE_DESCR,\n\tCASE WHEN KEYWORDS = '' OR KEYWORDS IS NULL\n\t     THEN 'n.a.' ELSE KEYWORDS\n\tEND AS PAGE_KEYWORDS\n\tFROM STG_CMS_MENU\n\tWHERE CONTENT_TYPE != 'folder' -- only web pages\n\t  AND PAGE_TITLE != 'n.a.' -- master data which make sense\n)\n\/* updated records from stage: CLS and build reference to history: HIST *\/\nSELECT\n\tHIST.DIM_REQUEST_ID AS DIM_REQUEST_ID_HIST,\n\tHIST.REQUEST_NK,\n\tCLS.PAGE_TITLE,\n\tCLS.PAGE_DESCR,\n\tCLS.PAGE_KEYWORDS,\n\t0 AS DELETE_FLAG,\n\tSTRFTIME('%s','now') AS UPDATE_DT\nFROM CLS,\n     DIM_REQUEST_V_ACT TRG,\n     DIM_REQUEST HIST\nWHERE CLS.REQUEST_NK = TRG.REQUEST_NK\n  AND TRG.DIM_REQUEST_ID = HIST.DIM_REQUEST_ID\n  AND ( CLS.PAGE_TITLE != HIST.PAGE_TITLE \/* changes only *\/\n     OR CLS.PAGE_DESCR != HIST.PAGE_DESCR\n     OR CLS.PAGE_KEYWORDS != HIST.PAGE_KEYWORDS )<\/code><\/pre>\n<p><b class=\"spoiler_title\">Registros eliminados SCD2<\/b><\/p>\n<pre><code class=\"sql\">\/* Load request table SCD from master data *\/\nINSERT INTO DIM_REQUEST (DIM_REQUEST_ID_HIST, REQUEST_NK, PAGE_TITLE, PAGE_DESCR, PAGE_KEYWORDS, DELETE_FLAG, UPDATE_DT)\nWITH CLS  AS ( -- prepare keys\n\tSELECT\n\t'\/' || NAME AS REQUEST_NK,\n\tTITLE       AS PAGE_TITLE\n\tFROM STG_CMS_MENU\n\tWHERE CONTENT_TYPE != 'folder' -- only web pages\n\t  AND PAGE_TITLE != 'n.a.' -- master data which make sense\n)\n\/*  deleted records in data mart: TRG *\/\nSELECT\n\tTRG.DIM_REQUEST_ID AS DIM_REQUEST_ID_HIST,\n\tTRG.REQUEST_NK,\n\tTRG.PAGE_TITLE,\n\tTRG.PAGE_DESCR,\n\tTRG.PAGE_KEYWORDS,\n\t1 AS DELETE_FLAG,\n\tSTRFTIME('%s','now') AS UPDATE_DT\nFROM (\n\tSELECT\n\tDIM_REQUEST_ID,\n\tREQUEST_NK,\n\tPAGE_TITLE,\n\tPAGE_DESCR,\n\tPAGE_KEYWORDS\n\tFROM DIM_REQUEST_V_ACT\n\tWHERE PAGE_TITLE != 'n.a.' -- track master data only\n\t  AND DELETE_FLAG = 0 -- not already deleted\n) TRG\nLEFT OUTER JOIN CLS ON TRG.REQUEST_NK = CLS.REQUEST_NK\nWHERE CLS.REQUEST_NK IS NULL -- no such record in stage<\/code><\/pre>\n<p>Cada fuente de datos debe ser acompa\u00f1ada de una descripci\u00f3n formal, por ejemplo, en un archivo readme.txt:<\/p>\n<blockquote><p>Receptor de datos formal\/t\u00e9cnico: nombre, direcci\u00f3n de correo electr\u00f3nico<br \/>\nProveedor de datos formal\/t\u00e9cnico: nombre, direcci\u00f3n de correo electr\u00f3nico<br \/>\nFuente de datos: ruta al archivo, nombres de servicios<br \/>\nInformaci\u00f3n sobre el acceso a los datos: usuarios y contrase\u00f1as<\/p><\/blockquote>\n<p>\nUn esquema de movimiento de datos ayudar\u00e1 en el proceso de mantenimiento y actualizaci\u00f3n, por ejemplo, en forma de texto:<\/p>\n<blockquote><p>Movimiento de archivo. Fuente: ftp.domain.net: \/logs\/access.log Objetivo: \/var\/www\/access.log<br \/>\nLectura en la etapa. Objetivo: STG_ACCESS_LOG<br \/>\nCarga y transformaci\u00f3n. Objetivo: FCT_ACCESS_REQUEST_REF_HH<br \/>\nCarga y transformaci\u00f3n. Objetivo: FCT_ACCESS_USER_AGENT_DD<br \/>\nInforme. Objetivo: \/var\/www\/report.html<\/p><\/blockquote>\n<h4>Salida<\/h4>\n<p>\nAs\u00ed, el art\u00edculo describe mecanismos como la integraci\u00f3n de bases de datos y la introducci\u00f3n de nuevos niveles de agregaci\u00f3n. Estos son necesarios al construir almacenes de datos con el fin de obtener conocimientos adicionales y mejorar la calidad de la informaci\u00f3n.<br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/463493\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0410\u043d\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u044f \u0441\u0442\u0430\u0442\u0438\u0441\u0442\u0438\u043a\u0443 \u0441\u0430\u0439\u0442\u0430, \u043c\u044b \u043f\u043e\u043b\u0443\u0447\u0430\u0435\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043e \u0442\u043e\u043c, \u0447\u0442\u043e \u043f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u0441 \u043d\u0438\u043c. \u0420\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u043c\u044b \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c \u0441 \u0434\u0440\u0443\u0433\u0438\u043c\u0438 \u0437\u043d\u0430\u043d\u0438\u044f\u043c\u0438 \u043e \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u0435 \u0438\u043b\u0438 \u0441\u0435\u0440\u0432\u0438\u0441\u0435 \u0438 \u044d\u0442\u0438\u043c \u0443\u043b\u0443\u0447\u0448\u0430\u0435\u043c \u043d\u0430\u0448 \u043e\u043f\u044b\u0442. \u041a\u043e\u0433\u0434\u0430 \u0430\u043d\u0430\u043b\u0438\u0437 \u043f\u0435\u0440\u0432\u044b\u0445 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u0432 \u0437\u0430\u0432\u0435\u0440\u0448\u0451\u043d, \u043f\u0440\u043e\u0448\u043b\u043e \u043e\u0441\u043c\u044b\u0441\u043b\u0435\u043d\u0438\u0435 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u0438 \u0441\u0434\u0435\u043b\u0430\u043d\u044b \u0432\u044b\u0432\u043e\u0434\u044b, \u043d\u0430\u0447\u0438\u043d\u0430\u0435\u0442\u0441\u044f \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u044d\u0442\u0430\u043f. \u0412\u043e\u0437\u043d\u0438\u043a\u0430\u044e\u0442 \u0438\u0434\u0435\u0438: \u0430 \u0447\u0442\u043e \u0431\u0443\u0434\u0435\u0442, \u0435\u0441\u043b\u0438 \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u043d\u0430 \u0434\u0430\u043d\u043d\u044b\u0435 \u0441 \u0434\u0440\u0443\u0433\u043e\u0439 \u0441\u0442\u043e\u0440\u043e\u043d\u044b? \u041d\u0430 \u044d\u0442\u043e\u043c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27858,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-37156","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" 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