SQL 总行数
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时间：2020-09-01 08:18:48 来源:igfitidea点击:
SQL total row count
提问by ozsenegal
I need to select the number of rows:
我需要选择行数：
select
int_re_usu as Qtd_Respostas
from
tb_questionario_voar_resposta
group by
int_re_usu
It returns:
它返回：
1- 687
2- 375076
3- 339012
4 -314083
5 -52741
6 -339977
7- 276041
8- 373304
9 - 339476
10- 51095
11- 270365
12 - 6
13 - 308670
14 -305232
15 - 85868
16 - 9893
17 -300598
18 - 300572
19 - 275889
20 - 6092
21 - 80092
22 - 307104
23 -273393
I want to select instead the number 23,which is the total row_count.
我想选择数字 23，即总 row_count。
Any ideias?
有什么想法吗？
回答by John Hartsock
Use @@RowCount
使用@@RowCount
select int_re_usu as Qtd_Respostas from tb_questionario_voar_resposta group by int_re_usu
Select @@RowCount
OR Use a Derived Table
或使用派生表
Select Count(*) from
(select int_re_usu as Qtd_Respostas from tb_questionario_voar_resposta group by int_re_usu) q1
回答by thomaspaulb
回答by GendoIkari
Instead of GROUP BY, you can use DISTINCT:
您可以使用 DISTINCT 代替 GROUP BY：
SELECT COUNT(DISTINCT int_re_usu)
FROM tb_questionario_voar_resposta
回答by Lynette Duffy
With temp as
( select int_re_usu as Qtd_Respostas
from tb_questionario_voar_resposta
group by int_re_usu )
Select count(*) from temp
回答by Ryan Guill
select count(*) from
( select int_re_usu as Qtd_Respostas from tb_questionario_voar_resposta group by int_re_usu ) as a
回答by Erkan Haspulat
You can use the count(*) function.
您可以使用 count(*) 函数。
select count(*)
from table_name
group by column_name
