IoT Mysql Query иногда я получаю - Subquery возвращает более 1 строки - PullRequest
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IoT Mysql Query иногда я получаю - Subquery возвращает более 1 строки

0 голосов
/ 23 октября 2019

У меня следующий запрос: 

SELECT IF(IF(atmp = 1 AND h_start1 <= (SELECT HOUR(NOW())) AND
             (SELECT HOUR(NOW())) <= h_stop1 OR
             h_start2 <= (SELECT HOUR(NOW())) AND
             (SELECT HOUR(NOW())) <= h_stop2,
             t_temp1,
             set_temp) < temp - modEn AND ccl = 1,
          1,
          0) clima,
       IF(IF(atmp = 1 AND h_start1 <= (SELECT HOUR(NOW())) AND
             (SELECT HOUR(NOW())) <= h_stop1 OR
             h_start2 <= (SELECT HOUR(NOW())) AND
             (SELECT HOUR(NOW())) <= h_stop2,
             t_temp1,
             set_temp) > temp + modEn AND cct = 1,
          1,
          0) centrala,
       'studio' camera
  FROM (SELECT (SELECT date
                  FROM termostat
                 WHERE topic = 'control-clima'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') ccl,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'control-centrala'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') cct,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'auto-temp'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') atmp,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'mod'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') modEn,
               (SELECT date
                  FROM termostat
                 WHERE topic = 't-temp1'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') t_temp1,
               (SELECT date
                  FROM termostat
                 WHERE topic = 't-temp2'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') t_temp2,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'h-start1'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') h_start1,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'h-start2'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') h_start2,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'h-stop1'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') h_stop1,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'h-stop2'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') h_stop2,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'set-temp'
                   AND incapere = 'studio'
                   AND zi = 'miercuri') set_temp,
               (SELECT date
                  FROM termostat
                 WHERE topic = 'studio/climat/temperatura') temp) t1

Все идет хорошо, но без студийного микросхемы комнаты, у меня проблема Subquery returns more than 1 row С тем же кодом я могу читать данные о обогреве и кондиционере в специально выделенной комнатеи день из остальных комнат ...

Может быть, некоторые из вас также помогут мне улучшить запрос (я знаю, что места гораздо лучше!)

Спасиборебята!

1 Ответ

0 голосов
/ 23 октября 2019

Как упомянул @BarbarosOzhan, решение моих проблем с воском max() работает в моих подзапросах. Мой новый и рабочий запрос: 

SELECT IF(IF(atmp = 1 AND h_start1 <= (SELECT HOUR(NOW())) AND
         (SELECT HOUR(NOW())) <= h_stop1 OR
         h_start2 <= (SELECT HOUR(NOW())) AND
         (SELECT HOUR(NOW())) <= h_stop2,
         t_temp1,
         set_temp) < temp - modEn AND ccl = 1,
      1,
      0) clima,
   IF(IF(atmp = 1 AND h_start1 <= (SELECT HOUR(NOW())) AND
         (SELECT HOUR(NOW())) <= h_stop1 OR
         h_start2 <= (SELECT HOUR(NOW())) AND
         (SELECT HOUR(NOW())) <= h_stop2,
         t_temp1,
         set_temp) > temp + modEn AND cct = 1,
      1,
      0) centrala,
   'studio' camera
FROM (SELECT (SELECT max(date)
              FROM termostat
             WHERE topic = 'control-clima'
               AND incapere = 'studio'
               AND zi = 'miercuri') ccl,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'control-centrala'
               AND incapere = 'studio'
               AND zi = 'miercuri') cct,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'auto-temp'
               AND incapere = 'studio'
               AND zi = 'miercuri') atmp,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'mod'
               AND incapere = 'studio'
               AND zi = 'miercuri') modEn,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 't-temp1'
               AND incapere = 'studio'
               AND zi = 'miercuri') t_temp1,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 't-temp2'
               AND incapere = 'studio'
               AND zi = 'miercuri') t_temp2,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'h-start1'
               AND incapere = 'studio'
               AND zi = 'miercuri') h_start1,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'h-start2'
               AND incapere = 'studio'
               AND zi = 'miercuri') h_start2,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'h-stop1'
               AND incapere = 'studio'
               AND zi = 'miercuri') h_stop1,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'h-stop2'
               AND incapere = 'studio'
               AND zi = 'miercuri') h_stop2,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'set-temp'
               AND incapere = 'studio'
               AND zi = 'miercuri') set_temp,
           (SELECT max(date)
              FROM termostat
             WHERE topic = 'studio/climat/temperatura') temp) t1
...