mysql - 如何在MySQL中合并具有相似名称的多个表

Question

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Answer 1

您必须提供更多信息，以便我们确切知道您想要什么，但您可以创建一个 View

CREATE VIEW myViewName AS 

select * 
from table1 

union all 

select * from 
table2 

这样它会显示所有表中的信息(并且可以限制在选择中不显示所有内容)并且当表 1、表 2 等发生更改时， View 将反射(reflect)这一点。您可以随时更改它并像获取表格一样从中获取:

 select * from myViewName

现在为了从特定表中抓取，我不确定如何在 mysql 中执行此操作，尽管我已经在 tsql 中完成了。 This previous question会帮助你所以你可能有这样的东西:

-- Create temporary table of varchar(200) to store the name of the tables. Depending on how you want to go through the array maybe an id number (int). 
insert into tempTableName (name)
SELECT table_name FROM information_schema.tables WHERE table_schema = 'database_name' and table_name like 'TX_%';
declare @sqlQuery varchar(max)
--Then you will want to loop through the array and build up an sql statement
-- For each loop through:
     if len(@sqlQuery) = 0 begin -- first time through
         set @sqlQuery = 'select col1, col2, col3 from ' + currentTableName
     end else begin -- second+ time through
         set @sqlQuery = 'union all select col1, col2, col3 from ' + currentTableName
     end
-- after the loop add the create view. Could double check it worked by checking length = 0 again
set @sqlQuery = 'CREATE VIEW myViewName AS ' + @sqlQuery
Once the query string is built up you will execute it with
PREPARE stmt FROM @sqlQuery;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;