sql - 我需要从带有 Inner Join 的 Declare 语句中获取计数

Question

Declare @trans table(eTransid varchar(30) Not NULL)

INSERT INTO @trans
SELECT DISTINCT eTransID
FROM csi_eRecording.dbo.eRecordAudit WITH(NOLOCK) 
WHERE EventMessage LIKE 'Recorded file cannot be found%' 
ORDER BY eTransID

SELECT a.*
FROM csi_eRecording.dbo.eRecordTrans a WITH(NOLOCK) INNER JOIN @trans b ON a.eTransID=b.eTransID
ORDER BY eTransID

Answer 1

@@ROWCOUNT tracks the last count of affected rows

declare @trans table(eTransid varchar(30) Not NULL)
insert @trans values ('all'),('hail'),('cthulhu')

select 'inserted rows=', @@ROWCOUNT

--(No column name)  (No column name)
--inserted rows=    3

select * from @trans

--eTransid
--all
--hail
--cthulhu

select 'selected rows=', @@ROWCOUNT

--(No column name)  (No column name)
--selected rows=    3

Answer 2

SELECT a.*,(select count(*) FROM csi_eRecording.dbo.eRecordTrans a WITH(NOLOCK) INNER JOIN @trans b ON a.eTransID=b.eTransID ORDER BY eTransID) as countIT FROM csi_eRecording.dbo.eRecordTrans a WITH(NOLOCK) INNER JOIN @trans b ON a.eTransID=b.eTransID ORDER BY eTransID