add（sql）：添加记录蒸汽数据的存储过程，2024/11/26确定的作业版本

- 新增名为 Record_SteamPointData 的存储过程
- 该过程用于记录蒸汽消耗数据
- 从 ems_record_steam_instant 表中获取最新数据
- 计算蒸汽消耗量并插入到 ems_report_point_steam 表中

新选择2，11.26.sql

@@ -0,0 +1,51 @@
+CREATE PROCEDURE [dbo].[Record_SteamPointData]
+AS
+declare @begin_time datetime
+declare @end_time datetime
+BEGIN
+    set @begin_time = DATEADD(hh, -1, GETDATE());
+    set @end_time = DATEADD(hh, -0, GETDATE());
+    declare @dateinfo datetime;
+    set @dateinfo = GETDATE();
+INSERT INTO ems_report_point_steam (monitor_code, expend,instrument_value,begin_time,end_time,record_time)
+SELECT
+    t1.monitor_code                                                       AS monitor_code,
+    CONVERT(DECIMAL(18, 2), ISNULL((t3.steam_flow - t4.instrument_value),0))                            AS expend,
+    ISNULL(t3.steam_flow,0)                                              AS instrument_value,
+    DATEADD(HH, -1, @dateinfo)                                         AS begin_time,
+    DATEADD(HH, 0, @dateinfo)                                          AS end_time,
+    CONVERT(VARCHAR(30), DATEADD(HH, -1, @dateinfo), 120)              AS record_time
+FROM ems_base_monitor_info t1
+         LEFT JOIN (
+    SELECT T1.monitor_code, T1.steam_flow, T1.collect_time
+    FROM ems_record_steam_instant T1
+             INNER JOIN (
+        SELECT monitor_code, MAX(collect_time) AS latest_collect_time
+        FROM ems_record_steam_instant
+        WHERE collect_time BETWEEN @begin_time AND @end_time
+        GROUP BY monitor_code
+    ) T2
+                        ON T1.monitor_code = T2.monitor_code AND T1.collect_time = T2.latest_collect_time
+    WHERE T1.collect_time BETWEEN @begin_time AND @end_time
+) t3 ON t1.monitor_code = t3.monitor_code
+
+
+
+         LEFT JOIN (
+    SELECT E1.monitor_code,E1.begin_time,E1.instrument_value
+    FROM ems_report_point_steam E1
+             JOIN (
+        SELECT monitor_code, MAX(begin_time) AS begin_time
+        FROM ems_report_point_steam
+        GROUP BY monitor_code) E2
+                  on E1.begin_time = E2.begin_time AND E1.monitor_code = E2.monitor_code
+) t4 ON t1.monitor_code = t4.monitor_code;
+
+
+
+
+
+
+END;
+go
+