Search All Tables in SQL Database for a Value

You can use the following query to perform your search. Just replace the "@myValue" with your value.

Declare @TN as varchar(200), @CN as varchar(200), @myValue varchar(30), @SQL as nvarchar(1000)
, @SN as varchar(200), @Exact_Match bit

Create Table #myTable (Table_Name varchar(200), Column_Name varchar(200), Number_Of_Rows int)

-- Replace @myValue with the value you're searching for in the database
Set @myValue = 'Value to Search'
-- 0 for LIKE match, 1 for exact match
Set @Exact_Match = 1

Declare myCursor Cursor For
Select T.Table_Name, C.Column_Name, T.Table_Schema
From INFORMATION_SCHEMA.TABLES T Inner Join INFORMATION_SCHEMA.COLUMNS C
On T.Table_Schema = C.Table_Schema And T.Table_Name = C.Table_Name
Where T.Table_Name <> 'dtproperties' And Table_Type = 'Base Table'
And C.Data_Type In ('varchar','char','nvarchar','nchar','sql_variant')
--And C.Data_Type In ('text','ntext')
--And C.Data_Type In ('tinyint','int','bigint','numeric','decimal','money','float','smallint','real','smallmoney')
--And C.Data_Type In ('datetime','dmalldatetime')
-- Fields not searched: image, uniqueidentifier, bit, varbinary, binary, timestamp
Open myCursor
Fetch Next From myCursor Into @TN, @CN, @SN
While @@Fetch_Status <> -1
Begin
If @Exact_Match = 0
Set @SQL = N'Insert Into #myTable Select ''' + @SN + '.' + @TN + ''', ''' + @CN + ''', Count(*) From [' + @SN + '].[' + @TN + '] Where [' + @CN + '] Like ''%' + @myValue + '%'''
Else
Set @SQL = N'Insert Into #myTable Select ''' + @SN + '.' + @TN + ''', ''' + @CN + ''', Count(*) From [' + @SN + '].[' + @TN + '] Where [' + @CN + '] = ''' + @myValue + ''''
--Print @SQL
Exec sp_executesql @SQL
Fetch Next From myCursor Into @TN, @CN, @SN
End
Close myCursor
Deallocate myCursor
Select * From #myTable Where Number_Of_Rows > 0 Order By Table_Name
Drop Table #myTable

Source: http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/Q_23001597.html