sql-server - SQL クエリで @@rowcount の結果を返す

Question

if existsエラーを発生させ、print一致する行数を増やしたかったのですが、これは機能しません。助けてください 。

if exists (select * from [rto] a
     inner join rt b
     on a.NUM=b.TABLE_NAME
     where a.START_YEAR between b.YEAR_START and b.YEAR_STOP)
     Raiserror ('Matched recs found',16,1)
     print 'There are' +  cast(@@rowcount as varchar(20)) + 'matched rows'

Answer 1

あなたが逃しBEGINたEND:

if exists (select * from [rto] a
    inner join rt b
    on a.NUM=b.TABLE_NAME
    where a.START_YEAR between b.YEAR_START and b.YEAR_STOP)
BEGIN
    Raiserror ('Matched recs found',16,1)
    print 'There are ' +  cast(@@rowcount as varchar(20)) + ' matched rows'
END