在当前账户下模糊查询是否有匹配的表以及定位字段是否存在、在哪个表中

Declare @db varchar(100)

Declare @dbID int =4

Declare @tabName varchar(100)='mask'

Declare @columnName varchar(100) = ''

Declare @FixDB varchar(100)='ProductDB'

--在所有的库中找一张表

while 1=1

Begin

Select Top 1 @db=name,@dbID=database_id From  Sys.databases where database_id>@dbID Order by database_id asc

--如果指定搜索的数据库，则跳过所有非指定数据库

If (@FixDB<>@db And  LEN(@FixDB)>2)

Continue

Begin try

if(LEN(@tabName)>0)

exec ( 'If Exists( Select '''+@db+''',* From '+@db+'.sys.tables(Nolock) where name like  ''%'+@tabName+'%'' )

Select '''+@db+''' DBName,* From '+@db+'.sys.tables(Nolock) where name like  ''%'+@tabName+'%''

')

if(LEN(@columnName)>0)

exec ( 'If Exists( Select C.name,O.name From '+@db+'.sys.columns(Nolock)  C

Inner Join '+@db+'.sys.objects O on C.object_id=O.object_id

where C.name like ''%'+@columnName+'%'')

Select '''+@db+''' DBName,O.name TableName,C.name ColumName From '+@db+'.sys.columns(Nolock)  C

Inner Join '+@db+'.sys.objects O on C.object_id=O.object_id

where C.name like ''%'+@columnName+'%''

 '

)

End try

Begin catch

Print @db

End catch



If (@FixDB=@db And  LEN(@FixDB)>2)--如果当前是指定的数据库，说明已经运行结束，跳出循环。

Break

IF((Select max(database_id) From  Sys.databases )=@dbID) --如果当前运行结束的数据库是最后一个，则说明运行结束，退出循环

break

End