How to compare two libraries

I recently bought a 17-inch MBP to replace my old WindTunnel G4 as my primary machine. (The G4 will still be in service as a server.) I'm in the process of bringing my iTunes library over to the MBP, a process that has been made much easier by Home Sharing in iTunes 9. Thank you, Apple, for this feature!
My question is, when I connect to the shared library, iTunes on the MBP shows 41 fewer tracks than iTunes on the G4 shows. With nearly 200GB of music (over 40,000 tracks) in my library, manually comparing the two libraries to determine which tracks are missing would be an exercise in boredom and futility. Is there any automated way, any software, that I can use to compare the contents of the two libraries so I can locate the missing tracks and figure out what's wrong with them? I'm not averse to using Terminal if that's going to be the most straightforward way to do it.

I am in the same boat as you are Mark. I only have about 88G and 16,000 tracks of music (that does not include any video), and in trying to manually compare two libraries from directory listings by hand is not the way to do things. I am also thinking that creating some output listings for the directory is the solution, but the directory structure is not the same, and would require some level of automation for dumping the differences. I am a tad rusty at my unix scripting to say the least, but I guess I could pull out some of the old reference books. Even if a properly specified ls command could give an output format to pull into an excel file? and then be able to do the diff there with some small tweaking ? I've gotten myself into a bit of a mess with this (nothing that can not be resolved with some careful cleanup), but I don't want to have to rebuild another new library from my old master if I could do a diff between the two, so I can add the remaining 10G (estimated) that is missing in the new library.
Hopefully by replying to your thread someone else will spot this and can give an assist.
I am missing a lot more than 41 tracks, I am guessing a few hundred (200 - 300 plus?).
One place to check on the old library is in the unknown folders? (unknown album or unknown artist?) and also to check under what is labeled as a compilations folder.
I think what created part of my problem is that I suspect the new directory structure (part of the new iTunes version) placed on top of the old directory structure (prior iTunes versions - when the orig library was created back in 2003 and then moved to an external device) was something I did not clearly understand or investigate sufficiently prior to starting to move things around. I have not lost anything (i.e. the physical files are all still there in the old master, along with a backup), but certainly the new master is not in full synch with the old master.
I would have preferred to be far less cognizant of some of these things, but as this exercise continues some of this gets unearthed.

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TS2972 used to be able to pick out which songs in iTunes in my computer were not on a 2nd computer on homeshare in iTunes 10. Now with V11, cant find the button that compares two libraries and finds the songs that are different. Anyone know how to do th

Used to be able to pick out which songs in iTunes in my computer were not on a 2nd computer on homeshare in iTunes 10. Now with V11, cant find the button that compares two libraries and finds the songs that are different. Anyone know how to do this now?

Jneklason wrote:
~snip~
I know this email is confusing and really hard to understand...perhaps now you will know how i've been feeling--lost and confused with all the mis-information, with a hit and miss phone, and out of time with all the 1 1/2 hr to 2 hrs EACH wasted on this issue.
On top of all this, I can't even find out how to file a complaint with anyone higher up than Customer Service.
I hate to tell you this, but you didn't write an email. You wrote a discussion post on the Verizon Wireless Community forum which is a public peer to peer forum. Unfortunately since you didn't mark your post as a question, the VZW reps that roam this community won't ever see your post. Before you re-post it, don't. Duplicate posts get removed from the community.
I see there were several missteps both by the reps and yourself in your post. First you should have insisted on returning the phone within the 14 day return policy period. Second which Samsung Galaxy mini model did you purchase? The S3 mini or the S4 mini? Did you do any research prior to deciding on this device. The reps at that time deflected the easiest course of action, by trying to get you to replace the phone under insurance instead of returning the phone. The Early Edge payment option requires the current phone on the line using the early Edge must be returned to Verizon Wireless. Did you once considered going to a third party site like Swappa to purchase a gently used device for your daughter?

How to compare two rows in PL/SQL?

Hi All,
How to compare two rows in PL/SQL? Is there any method that I can use instead of comparing them column by column?
Any feedback would be highly appreciated.

PhoenixBai wrote:
Hi All,
How to compare two rows in PL/SQL? Is there any method that I can use instead of comparing them column by column?What "rows" are you referring to?
If you're talking of rows within a PL/SQL associative array there are techniques as described in the documentation... e.g.
SQL> ed
Wrote file afiedt.buf
1 declare
2    type v1 is table of number;
3    r1 v1 := v1(1,2,4);
4    r2 v1 := v1(1,2,3);
5 begin
6    if r1 MULTISET EXCEPT DISTINCT r2 = v1() then
7      dbms_output.put_line('Same');
8    else
9      dbms_output.put_line('Different');
10    end if;
11* end;
SQL> /
Different
PL/SQL procedure successfully completed.
SQL> ed
Wrote file afiedt.buf
1 declare
2    type v1 is table of number;
3    r1 v1 := v1(1,2,3);
4    r2 v1 := v1(1,2,3);
5 begin
6    if r1 MULTISET EXCEPT DISTINCT r2 = v1() then
7      dbms_output.put_line('Same');
8    else
9      dbms_output.put_line('Different');
10    end if;
11* end;
SQL> /
Same
PL/SQL procedure successfully completed.
SQL>If you're talking about rows on a table then you can use the MINUS set operator to find the rows that differ between two sets of data...
SQL> select * from emp;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-1980 00:00:00        800                    20
      7499 ALLEN      SALESMAN        7698 20-FEB-1981 00:00:00       1600        300         30
      7521 WARD       SALESMAN        7698 22-FEB-1981 00:00:00       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-1981 00:00:00       2975                    20
      7654 MARTIN     SALESMAN        7698 28-SEP-1981 00:00:00       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981 00:00:00       2850                    30
      7782 CLARK      MANAGER         7839 09-JUN-1981 00:00:00       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-1987 00:00:00       3000                    20
      7839 KING       PRESIDENT            17-NOV-1981 00:00:00       5000                    10
      7844 TURNER     SALESMAN        7698 08-SEP-1981 00:00:00       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-1987 00:00:00       1100                    20
      7900 JAMES      CLERK           7698 03-DEC-1981 00:00:00        950                    30
      7902 FORD       ANALYST         7566 03-DEC-1981 00:00:00       3000                    20
      7934 MILLER     CLERK           7782 23-JAN-1982 00:00:00       1300                    10
14 rows selected.
SQL> select * from emp2;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7521 WARD       SALESMAN        7698 22-FEB-1981 00:00:00       1250        500         30
      7566 JONES      MANAGER         7839 02-APR-1981 00:00:00       2975                    20
      7782 CLARK      MANAGER         7839 09-JUN-1981 00:00:00       2450                    10
      7788 SCOTT      ANALYST         7566 19-APR-1987 00:00:00       3000                    20
      7839 KING       PRESIDENT            17-NOV-1981 00:00:00       5000                    10
      7900 JAMES      CLERK           7698 03-DEC-1981 00:00:00        950                    30
      7934 MILLER     CLERK           7782 23-JAN-1982 00:00:00       1300                    10
7 rows selected.
SQL> select * from emp
2 minus
3 select * from emp2;
     EMPNO ENAME      JOB              MGR HIREDATE                    SAL       COMM     DEPTNO
      7369 SMITH      CLERK           7902 17-DEC-1980 00:00:00        800                    20
      7499 ALLEN      SALESMAN        7698 20-FEB-1981 00:00:00       1600        300         30
      7654 MARTIN     SALESMAN        7698 28-SEP-1981 00:00:00       1250       1400         30
      7698 BLAKE      MANAGER         7839 01-MAY-1981 00:00:00       2850                    30
      7844 TURNER     SALESMAN        7698 08-SEP-1981 00:00:00       1500          0         30
      7876 ADAMS      CLERK           7788 23-MAY-1987 00:00:00       1100                    20
      7902 FORD       ANALYST         7566 03-DEC-1981 00:00:00       3000                    20
7 rows selected.If you actually need to know what columns data is different on "non-matching" rows (based on your primary key) then you'll have to compare column by column.

How to compare two files in java & uncommon text should print in text file.

Hi,
Can any one help me to write Core java program for this.
How to compare two files in java & uncommon text should print in other text file.
thanks
Sam

Hi All,
i m comparing two HTML file.. thats why i am getting problem..
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String s;
String y;
while ((s=fh.readLine())!=null)
if ( s.equals(y=sh.readLine()) ){
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sh.close();
fh.close(); }
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Sam

How to compare two files in Java & uncommon text should print in Diff text

Hi All,
can any one help me to write a java program..
How to compare two files in Java & uncommon text should print in Diff text file..
Thanks
Sam

Hi All,
i m comparing two HTML file.. thats why i am getting problem..
import java.io.BufferedReader;
import java.io.FileReader;
public class textmatch{
public static void main(String[] argv)
throws Exception{
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BufferedReader sh = new BufferedReader(new FileReader("external.html"),1024);
String s;
String y;
while ((s=fh.readLine())!=null)
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sh.close();
fh.close(); }
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How to Compare two Dates in java

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How to compare two Universes ?

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Create
table tab1(ID
int ,DE char(10))
Create
table tab2(ID
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(1,'aaa')
Insert
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(2,'bbb')
Insert
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Insert
into tab2 Values(3,'ccc')
Insert
into tab2 Values(6,'wdr')
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tab1.ID,tab2.ID
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FULL
join tab2 on tab1.ID
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OR tab1.ID
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Result Set
ID ID
2 2
4 NULL
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ganeshk

How to compare two Universes of two different Datamarts?

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CA Forum: Integrated Solutions
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/*does record 1 have friend*/
WITH t AS
(SELECT 1 AS Id, 'a' AS NAME, 'type1' AS Col
FROM Dual
UNION ALL
SELECT 2 AS Id, 'a' AS NAME, 'type1' AS Col
FROM Dual
UNION ALL
SELECT 3 AS Id, 'a' AS NAME, 'type2' AS Col FROM Dual)
SELECT count(*) as YesNo
FROM t T1
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WITH t AS
(SELECT 1 AS Id, 'a' AS NAME, 'type1' AS Col
FROM Dual
UNION ALL
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FROM Dual
UNION ALL
SELECT 3 AS Id, 'a' AS NAME, 'type2' AS Col FROM Dual)
SELECT count(*) as YesNo
FROM t T1
WHERE T1.Id = 3
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How to run two libraries? [11.0.0]

Hey everyone. I've been using iTunes for a long time now, as it is a relatively good program for organizing my huge library> I don't use it to listen to music, but I often need to move files around and onto the appropriate devices for my family. Because of this, I got an external hard drive. From time to time, iTunes will forget that my library comes from my external. usually, this is after booting iTunes without having the external plugged in. This can be a nuisance, because iTunes then decides to fill up my laptop's free space with the large amounts of music I put on at once. It gets especially annoying when I need to consolidate files to ensure they are all on the hard drive because it will consolidate to the computer instead.
My question is, how do I set iTunes up so it will always look for my hard drive and use that as the library first? Then, and only then, if it cannot find my hard drive, it will use my computer's storage. Most important to solving my problem is that during those times it uses my computer's storage, it should automatically use my hard drive if present upon restarting iTunes.
I have figured out how to have two libraries, but I need to know how to put one on a higher priority and as a default that doesn't get changed.
To recap, If I run iTunes without my external hard drive, it changes the library location to my computer and does not put the setting back to how it was.

Aarowaim wrote:
how do I set iTunes up so it will always look for my hard drive and use that as the library first?
This is done by default, but it is up to the user to ensure the external or network drive is connected.
Aarowaim wrote:
Then, and only then, if it cannot find my hard drive, it will use my computer's storage.
Again, this is done by default.
If the user fails to connect the external drive before started iTunes the following steps should be taken.
Close iTunes.
Connect drive.
While holding SHIFT, launch iTunes.
When prompted to locate or create a new library, select locate and point iTunes to the external drive.
Is the iTunesLibrary.itl file actually on the external drive or is it on the C drive of the computer?

How to compare two xml schemas

Hello guys,
How to compare two xml schemas? is there any tool for that?
Thanksinadvance
kavita//

XML Files may be compared with the oracle.xml.differ.XMLDiff class.
A file consisting of the differences in the xml files gets generated. An XSLT to convert one file to the other also gets generated.

How to compare two Objects !!!!

Hi All,
I know that this question has been asked 100 times till now. But trust me I have checked all of them but couldn`t find answer. Here is my question:
I have an objecs. In that object I am setting (Id,Name,DOJ). Now I want to check whether the object I am trying to save in database already exists or not. If exists then I need to check whether all the setters are same for the two objects. Now can anyone tell me ,how to compare two objects directly without comparing the setters individually.
Thanks in advance.

pavan13 wrote:
That is pretty good idea. However I have a query. Does that code actually compare all the setters in a two beans. I don`t want to check each setter seperately.Well, it's pretty meaningless to talk about "comparing setters", setters are methods, they don't have values to compare. Because equals is inside the class, you can simply compare the fields that get set by the setters. "Properties" is probably a better name.
In principal you could write something that tried to find all relevant fields and compare them, using reflection or bean info stuff. The resulting code would be about 50 times longer and take about 50 times longer to run. It's hardly asking a lot to put three comparisons between && operators.
Remember, though, not to compare string fields with ==, you should call .equals on the string fields.
p.s. don't let the bean terminology confuse you. Beans are just ordinary objects which follow a few rules. Personally I wish the term had never been coined.
Edited by: malcolmmc on Dec 6, 2007 4:15 PM

How to compare two strings whether both are equal while ignoring the difference in special characters (example: & vs & and many others)?

I attempted to compare two strings whether they are equal or not. They should return true if both are equal.
One string is based on Taxonomy's Term (i.e. Term.Name) whereas other string is based on String object.
The problem is that both strings which seem equal return false instead of true. Both string values have different special characters though their special characters are ＆ and &
Snapshot of different design & same symbols:
Is it due to different culture or language?
How to compare two strings whether both are equal while ignoring the difference in special characters (＆ vs &)?

Hi Jerioon,
If you have a list of possible ambiguous characters the job is going to be easy and if (＆ vs &) are the only charracters in concern awesome.
You can use the below solution.
Before comparing pass the variables through a replace function to standarize the char set.
$Var = Replace($Var,"＆","&")
This is going to make sure you don't end up with ambiguous characters failing the comparison and all the char are "&" in this case.
Similar technique is used to ignore Character Cases 'a' vs. 'A'
Regards,
Satyajit
Please “Vote As Helpful”
if you find my contribution useful or “Mark As Answer” if it does answer your question. That will encourage me - and others - to take time out to help you.

??how to compare two resultsets??

hi all!
i need to find out whether two resultsets contain the same data.
the only way i know how to do it in java is to put them into a while loop and fetch the contents first and then compare the contents.
but is there an easier way to compare resultsets?
does anyone know how to compare two resultsets without extracting the data?
the code example here executes two identical queries on an oracle database, compare and print the resultsets.
public ResultSet getResultset(String query)
ResultSet rs=null;
try { rs=Stmt.executeQuery(query); }
catch(Exception e) { e.printStackTrace(); }
return rs;
public static void main(String[] args) {
ResultSet r1=null;
ResultSet r2=null;
try {
database db = new ddatabase();
r1=db.getResultset("Select 'name' from person");
r2=db.getResultset("Select 'name' from person");
if (r1 == r2) {
System.out.println("ok");
System.out.print(r1);
System.out.println();
System.out.print(r2);
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System.out.println("not ok");
System.out.print(r1);
System.out.println();
System.out.print(r2);
jdbc.cleanup();
catch(Exception e) {e.printStackTrace();}
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F:\java rs_compare
not ok
oracle.jdbc.driver.OracleResultSetImpl@4413ee
oracle.jdbc.driver.OracleResultSetImpl@786e64
as you can see the resultsets are different though the data they contain have to be the same.
so the 'if(resultset#1 == resultset#2)' does not work.
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best regards
5ithl0rd

Don't cross-post.
I'll bet ResultSet implementations don't override equals() to provide "deep equals" behavior, in which case it'll be no different than using "==".
It's a bad idea to compare two ResultSets this way. You'll have to load both into objects or data structures and compare those in a "deep" way.
Besides, the ONLY way two ResultSets could be different, given the same query, would be if there were multiple clients that could write to the table between queries and change the underlying data. If your two queries are sufficiently isolated, I'd say that the same query will return the same ResultSet.
%

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select line, text
from user_source
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minus
select line, text
from user_source
where name='....'
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Or: get the procedure text to a file using dbms_metadata.get_ddl (9i and higher) and run diff (Unix) or fc (Windhoze) on it.
You are a bit scarce on details.
Better still: implement source control.
Sybrand Bakker
Senior Oracle D.B.A.

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reagrds, Natasa

hans-g. wrote:
It might sound strange, but for this I use a word processing program. I build a table with three columns (in portrait or in landscape mode depending on your needs). I set the paragraph marks so that I can compare the paragraphs. The new combinated version I copy into the third column. And then the way is free to copy the new compounded text into your new DW file.
Hans,
Have you tried WinDiff, WinMerge, Beyond Compare (my choice) or Compare It! or several others which automate much of the manual system outlined above?
http://www.scootersoftware.com/moreinfo.php?zz=screenshot&shot=TextCompare
http://www.scootersoftware.com/moreinfo.php?zz=screenshot&shot=TextMerge
These diff tools can then be used in conjunction with DW.
http://help.adobe.com/en_US/dreamweaver/cs/using/WSc78c5058ca073340dcda9110b1f693f21-7edda .html
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How to compare two libraries

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