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希望这将很快得到答复。我是 SQL 新手，因此为此苦苦挣扎，我可能会遗漏一些明显的东西。我有以下查询，它在单独的结果中返回行数，但是我想将结果放入 XLS。实现这一目标的最佳方法是什么？

select count(*) as "table_1" FROM table_1
select count(*) as "table_2" FROM table_2
select count(*) as "table_3" FROM table_3
select count(*) as "table_4" FROM table_4
select count(*) as "table_5" FROM table_5
select count(*) as "table_6" FROM table_6
select count(*) as "table_7" FROM table_7
select count(*) as "table_8" FROM table_8
select count(*) as "table_9" FROM table_9
select count(*) as "table_10" FROM table_10

非常感谢！

感谢您的帮助，这就是我给我所需的东西。

我知道这将是相当简单的事情！

SELECT 'table_1' as "Table", count (*) as "Count" FROM table_1 union all
SELECT 'table_2' as "Table", count (*) as "Count" FROM table_2 union all
SELECT 'table_3' as "Table", count (*) as "Count" FROM table_3 union all
SELECT 'table_4' as "Table", count (*) as "Count" FROM table_4 union all
SELECT 'table_5' as "Table", count (*) as "Count" FROM table_5 union all
SELECT 'table_6' as "Table", count (*) as "Count" FROM table_6 union all
SELECT 'table_7' as "Table", count (*) as "Count" FROM table_7 union all
SELECT 'table_8' as "Table", count (*) as "Count" FROM table_8 union all
SELECT 'table_9' as "Table", count (*) as "Count" FROM table_9 union all
SELECT 'table_10' as "Table", count (*) as "Count" FROM table_10
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1 回答 1

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有两种方法可以做到这一点，使用联合语句和使用您的选择语句的子查询

Union会将所有结果合并到一个包含多行的表中

select count(*) , 'Table1' as tablename FROM table_1
union all
select count(*), 'Table2' as tablename  FROM table_2
union all
select count(*) ,'Table3' as tablename FROM table_3
.....
.....

子查询将返回一行多列

SELECT 
   (SELECT COUNT(*) FROM table_1) as 'Table1',
   (SELECT COUNT(*) FROM table_2) as 'Table2',
   (SELECT COUNT(*) FROM table_3) as 'Table3'
 ......
 ......
于 2013-08-23T14:40:02.337 回答