Question

我有一个MySQL数据库集，因此任务数据会自动发布到数据库中。每个任务都在一个部分中，每个部分都有自己的表。有20个表格中包含所有信息。我需要将所有这些信息都放到单个视图中，以便我可以直观地显示它。目前我正在为每项任务执行以下操作，并且有118项任务。

启动MySQL表

  **Main_table**            
ID   | Dis | Div | inspect
-----|-----|-----|--------
1001 | as  | ad  | Yes
1111 | pq  | ad  | No

CREATE TABLE Main_table(
   ID      INTEGER  NOT NULL PRIMARY KEY 
  ,Dis     VARCHAR(2) NOT NULL
  ,Div     VARCHAR(2) NOT NULL
  ,inspect VARCHAR(3) NOT NULL
);
INSERT INTO mytable(ID,Dis,Div,inspect) VALUES (1001,'as','ad','Yes');
INSERT INTO mytable(ID,Dis,Div,inspect) VALUES (1111,'pq','ad','No');


 **Sec10_table**    
ID  | task101
----|--------
1001| Null
1111| Good

 CREATE TABLE Sec10_table(
       ID      INTEGER  NOT NULL PRIMARY KEY 
      ,task101 VARCHAR(4) 
    );
    INSERT INTO mytable(ID,task101) VALUES (1001,NULL);
    INSERT INTO mytable(ID,task101) VALUES (1111,'Good');


     **Sec11_table**        
ID   | Task111 | Task112
-----|---------|--------
1001 | Bad     | Good
1111 | Good    | Bad

CREATE TABLE Sec11_table(
   ID      INTEGER  NOT NULL PRIMARY KEY 
  ,Task111 VARCHAR(4) 
  ,Task112 VARCHAR(4) 
);
INSERT INTO mytable(ID,Task111,Task112) VALUES (1001,'Bad','Good');
INSERT INTO mytable(ID,Task111,Task112) VALUES (1111,'Good','Bad');

我现在在做什么

   Create View Master_view As

Select Main_table.ID AS ID,
'Task 101' AS Task,
Sec10_table.Task101 AS Results,
Main_table.Dis AS Dis,
Main_table.Div AS Div,
Main_table.inspect AS Inspect,
10 AS Section
From (Main_table
LEFT JOIN Sec10_table ON (Main_table.ID = Sec10_table.ID))
Where Sec10_table.Task101 IS NOT NULL

UNION ALL

Select Main_table.ID AS ID,
'Task 111' AS Task,
Sec11_table.Task111 AS Results,
Main_table.Dis AS Dis,
Main_table.Div AS Div,
Main_table.inspect AS Inspect,
11 AS Section
From (Main_table
LEFT JOIN Sec11_table ON (Main_table.ID = Sec11_table.ID))
WHERE Sec11_table.Task111 IS NOT NULL

UNION ALL

Select Main_table.ID AS ID,
'Task 112' AS Task,
Sec11_table.Task112 AS Results,
Main_table.Dis AS Dis,
Main_table.Div AS Div,
Main_table.inspect AS Inspect,
11 AS Section
From (Main_table
LEFT JOIN Sec11_table ON (Main_table.ID = Sec11_table.ID))
WHERE Sec11_table.Task112 IS NOT NULL

创建此视图。

                  **Master_View**
ID   | Task     | Results | Dis  | Div  | Inspect | Section
-----|----------|---------|------|------|---------|--------
1001 | Task 111 | Bad     | as   | ad   | Yes     | 11
1001 | Task 112 | Good    | as   | ad   | Yes     | 11
1111 | Task 101 | Good    | pq   | ad   | No      | 10
1111 | Task 111 | Good    | pq   | ad   | No      | 11
1111 | Task 112 | Bad     | pq   | ad   | No      | 11

我一直试图找到不同的方法，这可能会使它更简单，更有效，因为目前运行速度太慢。

我可以改进我在MySQL中创建此视图的速度非常慢吗？

0 个答案: