Question

如何在选择查询中选择表名？下面的查询返回大约200个表。在200张桌子中，大约10到15张桌子的id = 0。

如何在选择查询中选择表名？

预期结果：表名称，选择查询中的计数

    select  'select count(*) from' + ' ' + name + ' ' + 'where id = 0 group by 
 id having count(*) > 1 ' from sysobjects 
    where id in ( select id from syscolumns where name = 'Id' )
    and xtype = 'U'
    and name like 'T%'
    order by id

Answer 1

假设问题中的查询对您有意义，这是您想要的吗？

    select  'select ''' + name + ''' AS Name, count(*) from ' + name + ' where id = 0 group by 
 id having count(*) > 1' from sysobjects 
    where id in ( select id from syscolumns where name = 'Id' )
    and xtype = 'U'
    and name like 'T%'
    order by id

Answer 2

具有带有Id = 0行的表：

DECLARE @SQL NVARCHAR(MAX) = ''
select  @SQL = STUFF((SELECT ' union all select ''' + name + ''' AS TableName, count(*) from' + ' ' + name + ' ' + 'where id = 0 group by id having count(*) > 1' from sysobjects 
    where id in ( select id from syscolumns where name = 'Id' )
    and xtype = 'U'
    and name like 'T%'
    order by id
    FOR XML PATH, TYPE).value('.[1]', 'nvarchar(max)')
    ,1
    ,11
    ,''
)

EXEC sp_executesql @SQL

如何在选择查询中选择表名？

2 个答案: