Search All Columns in all tables

DECLARE @searchSQL AS VARCHAR(MAX)
DECLARE @SearchItem AS VARCHAR(MAX) ; SET @SearchItem = '%YOURSTRING%'

SELECT @searchSQL = COALESCE(@searchSQL + '+ CAST(COALESCE(MIN(CASE WHEN IC.Ordinal_position = ' + 
            CAST(Ordinal_position AS VARCHAR(MAX)) + 
            ' THEN '' OR  '' + IC.Column_Name + '' LIKE  ''''' + @SearchItem + ''''''' END), '''') AS NVARCHAR(max))' + 
CHAR(13), 'CAST(COALESCE(MIN(CASE WHEN IC.Ordinal_position = ' + 
            CAST(Ordinal_position AS VARCHAR(MAX)) + 
            ' THEN IC.Column_Name + '' LIKE  ''''' + @SearchItem + ''''''' END), '''') AS NVARCHAR(max))' + CHAR(13))
FROM INFORMATION_SCHEMA.Columns 
GROUP BY Ordinal_Position
ORDER BY Ordinal_Position

EXEC('SELECT REPLACE(Query, ''WHERE  OR'', ''WHERE'') FROM 
(SELECT ''SELECT '''''' + CAST(TABLE_NAME AS VARCHAR(MAX)) + '''''' as tbl, * FROM ['' +  
CAST(TABLE_SCHEMA AS VARCHAR(MAX)) + ''].'' + CAST(TABLE_NAME AS VARCHAR(MAX)) + '' WHERE '' + ' + @searchSQL + ' AS query
FROM INFORMATION_SCHEMA.Columns IC
WHERE DATA_TYPE IN (''char'',  ''varchar'', ''nchar'', ''nvarchar'')
GROUP BY TABLE_NAME, TABLE_SCHEMA) S')