Cm:select - howo to use distinct and such

Hello:
I need to do
SELECT DISTINCT object_name FROM
content
How do I do that using cm:select?
Is there a document anywhere that would explain the cm:select query
language syntax?
Any help is appreciated
Thanks

Hi Gennadiy,
Unfortunately, what you want to do cannot be done via the cm:select tag, nor
any of the standard public APIs. As was mentioned previously, if you were
using the reference implementation, you could execute a SQL statement
against the commercePool which looked like:
SELECT DISTINCT AUTHOR FROM WLCS_DOCUMENT
or:
SELECT DISTINCT VALUE FROM WLCS_DOCUMENT_METADATA
WHERE NAME = 'the name of the property you want'
With Documentum, that obviously won't work. However, when you setup WLPS
2.0.1 with Documentum, you configure a JDBC connection pool (dctmPool) that
utilizes the Documentum JDBC driver. You can execute DQL select statements
through this. Also, the Documentum Foundation Classes (DFC) are shipped
with the Documentum WLPS integration piece, so those could be used.
Questions related to how to use DQL or DFC should be directed to Documentum
support.
Regards,
Ginny Peterson
BEA Systems, Inc.
"Gennadiy Civil" <[email protected]> wrote in message
news:[email protected]...
Thanks BUT --
I did read the documentation and there is no way I could find to do what I
need to do..
I need to get a list of certain attributes from the content repository,not
just from the arbitrary database.
The documents in the repository have certain attributes - for example"autor"
- so I need to get all the authors the documents have so I can buildbrowse by
author drop down list.
cm:select only allows me to get list of documents where for example author
like "Asimov".
So hence my question - how do I get a list of all possible non repeated
authors from the repositiory.
Thanks
Gennadiy
"néné" wrote:
Hi Gennadiy,
The <cm:select ...> tag is used to get information from the Content
Management source.
You can see the details of this tag at the following documentation URL:
http://edocs.beasys.com/wlcs/p13ndev/jsptags.htm#1057716
If you want to get info from the database, and want to use a SQL
statement
such as "SELECT DISTINCT object_name FROM ...", you should probably look
into the <es:preparedstatement ...>
tag.
Check the documentation for the <cm:select ...> tag. There just mightbe
enough info there to help you out!

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Hi,
SeshuGiri wrote:
hi
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        OR c~aedat IN s_datum
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The only Select-Statement works on this table, which has one index on HICTGID.
It contains 259 entrances.:
CREATE TABLE HIERARCHYCATEGORY (
HICTGID                 NUMBER (19)   NOT NULL,
HICTGLEVEL              NUMBER (10)   NOT NULL,
HICTGEXTID              NUMBER (19)   NOT NULL,
HICTGEXTPARENTID        NUMBER (19)   NOT NULL,
HICTGNAME               VARCHAR2(255) NOT NULL
);The application simply loops through this table using
SELECT Hictgid, Hictgname FROM HIERARCHYCATEGORY WHERE HICTGID = ?, but I always open a connection before this query and closes this connection afterwards. So I use the pooling as much as possible. That's all SQL I'm using.
    protected static DataSource setupDataSource(String sDriver, String sUrl, String sUser, String sPwd) throws SQLException {
        BasicDataSource ds = new BasicDataSource();
        ds.setDriverClassName(sDriver);
        ds.setUsername(sUser);
        ds.setPassword(sPwd);
        ds.setUrl(sUrl);
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        ds.setMaxActive(3);
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        // The maximum number of milliseconds that the pool will wait (when there are no available connections)
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                               log.debug("DataSource created");
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                } else {
                    // No connection pooling:
                     if (log.isDebugEnabled()) {
                          log.debug("ConnectionPooling false");
                    try {
                        Class.forName(sJdbcDriver);
                        result = DriverManager.getConnection(sJdbcUrl, sJdbcUser, sJdbcPwd);
                    } catch (ClassNotFoundException cnf) {
                        log.error("Exception: Class Not Found. ", cnf);
                        System.exit(0);
(.. ErrorHandling ...)Here is the code fragment which is doing the work:
                 StringBuffer sb = new StringBuffer();
            while (lNextBottom <= lNextCeiling) {
                 con = getConnection();
                 innerSelStmt = con.prepareStatement("SELECT Hictgid, Hictgname FROM HIERARCHYCATEGORY WHERE HICTGID = ?");
                 innerSelStmt.setLong(1, lNextBottom);
                 rsInner = innerSelStmt.executeQuery();
                 if ((rsInner != null) && (rsInner.next())) {
                     sb.append(rsInner.getLong(1) + ", " + rsInner.getString(2) + "\r");
                      if (log.isDebugEnabled()) {
                           log.debug("Inner Statement: " + rsInner.getLong(1) + "\r");
                 rsInner.close();
                 con.close();
                 lNextBottom++;
             if (log.isInfoEnabled()) {
                  log.info("\rResult values: Hictgid, Hictgname \r");
                  log.info(sb.toString());
             }and the main method:
    public static void main(String[] args) {
        try {
             long lStartTime = System.currentTimeMillis();
             JdbcBasic oJb = new JdbcBasic();
             boolean bSuccess = false;
             bSuccess = oJb.getHierarchycategories();
             if (log.isInfoEnabled()) {
                  log.info("Running time: " + (System.currentTimeMillis() - lStartTime));
             if (null != m_ds) {
                 printDataSourceStats(m_ds);
                  shutdownDataSource(m_ds);
                  if (log.isInfoEnabled()) {
                       log.info("Datasource closed.");
         } catch (SQLException sqe) {
              log.error("SQLException within main-method", sqe);
    }My database values are
databaseConnection=jdbc:oracle:thin:@SERVERDB:1521:ora
jdbcDriver=oracle.jdbc.driver.OracleDriver
databaseConnection=jdbc:jtds:sqlserver://SERVERDB:1433/testdb
jdbcDriver=net.sourceforge.jtds.jdbc.Driver
databaseConnection=jdbc:mysql://localhost/testdb
jdbcDriver=com.mysql.jdbc.Driver
dbUsername=testusr
dbPassword=testpwdThanks for your reading and maybe for your help.

A few comments.
There is of course another difference between your test cases then just the database. There is also the driver. And I suspect that in at least the case with the jtds driver it is helping you along where you are doing something silly and the Oracle driver is not.
Before I explain the next part I would say the speed differences between MS-SQL and MySQL look about right I think you are aiming here for MS-SQL level performance not MySQL. (For a bunch of reasons MySQL is inherently faster but there are MANY drawbacks as well which have been well discussed on previous threads)
Here is where I believe your problem lies
while (lNextBottom <= lNextCeiling) {
                 con = getConnection();
                 innerSelStmt = con.prepareStatement("SELECT Hictgid, Hictgname FROM HIERARCHYCATEGORY WHERE HICTGID = ?");
                 innerSelStmt.setLong(1, lNextBottom);
                 rsInner = innerSelStmt.executeQuery();
                 if ((rsInner != null) && (rsInner.next())) {
                     sb.append(rsInner.getLong(1) + ", " + rsInner.getString(2) + "\r");
                      if (log.isDebugEnabled()) {
                           log.debug("Inner Statement: " + rsInner.getLong(1) + "\r");
                 rsInner.close();
                 con.close();
                 lNextBottom++;
             }There at least four things that are wrong with above.
1) Why are you preparing the statement INSIDE the loop. Let us for a moment say that the loop will spin 100 times. That means that you are preparing the same statement 100 times. This is bad. It is also very relevant because for example the Jtds driver is going to be caching the prepared statements you make so that actually while you try and prepare it 100 times it only actually does it once... but in Oracle I don't know what it is doing for sure but if it is preparing on each pass well than that bit of it is going take 100 times longer then it should.
2) You are opening and closing the connection on each pass through the loop... also a terrible idea. You need to fix this first so that you can repeatedly use the same prepared statement.
3) Why are you looping in the first place? More on this later.
4) Where do you close the PreparedStatement? It doesn't look like you do.
Okay so for starters your loop should look a lot more like this...
code]
con = getConnection();
innerSelStmt = con.prepareStatement("SELECT Hictgid, Hictgname FROM HIERARCHYCATEGORY WHERE HICTGID = ?");
while (lNextBottom <= lNextCeiling) {
innerSelStmt.setLong(1, lNextBottom);
rsInner = innerSelStmt.executeQuery();
if ((rsInner != null) && (rsInner.next())) {
sb.append(rsInner.getLong(1) + ", " + rsInner.getString(2) + "\r");
rsInner.close();
lNextBottom++;
innerSelStmt.close();
con.close();
I think the code above (and you can put your debug stuff back if you want) which uses ONE connection and ONE prepared Statement will improve your performance dramatically.
The other question though I would as is why in the hell you are doing 100 or whatever number of queries anyway. This can be done all in ONE query which again will improve performance.
Your query and such should look like this I think.
String sql = "SELECT Hictgid, Hictgname FROM HIERARCHYCATEGORY WHERE HICTGID >=? AND HICTGID<=?";
PreparedStatement ps = conn.prepareStatement(sql);
ps.setLong(1,lNextBottom );
ps.setLong(2,lNextCeiling);
ResultSet rs = ps.executeQuery();
while(rs.next()){
// your appending to string buffer code goes here
}and I can't understand why you're not doing that in the first place.

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Poor performance when Distinct and Order By Used

Hello,
I am getting an slow answer when I add Distinct and Order By to the query:
Without Distinct and Order By lasts 3.57 seconds; without Distinct and Order By lasts 28.15 seconds, which it's too much for our app.
The query is:
select distinct CC.acceso, CC.ext_acceso, TIT.TITULO_SALIDA
from (((Ocurrencias CT01 inner join
palabras p0 on (CT01.cod_palabra = p0.cod_palabra and p0.palabra like 'VENEZUELA%' AND p0.campo = 'AUTOR')) INNER JOIN
CENTRAL CC ON (CT01.ACCESO = CC.ACCESO AND CT01.EXT_ACCESO = CC.EXT_ACCESO))) inner join
codtit ctt on (CC.acceso = ctt.acceso and CC.ext_acceso = ctt.ext_acceso) inner join
titulos tit on (ctt.cod_titulo = tit.cod_titulo and ctt.portada = '1')
where CC.nivel_reg <> 's'
ORDER BY 3 ASC;
The query plan for the query WITH Distinct and Order By is:
Elapsed: 00:00:28.15
Execution Plan
0 SELECT STATEMENT Optimizer=ALL_ROWS (Cost=301 Card=47 Bytes=12220)
1 0 SORT (ORDER BY) (Cost=301 Card=47 Bytes=12220)
2 1 SORT (UNIQUE) (Cost=300 Card=47 Bytes=12220)
3 2 NESTED LOOPS (Cost=299 Card=47 Bytes=12220)
4 3 NESTED LOOPS (Cost=250 Card=49 Bytes=4165)
5 4 NESTED LOOPS (Cost=103 Card=49 Bytes=2989)
6 5 NESTED LOOPS (Cost=5 Card=49 Bytes=1960)
7 6 TABLE ACCESS (BY INDEX ROWID) OF 'PALABRAS' (TABLE) (Cost=3 Card=1 Bytes=19)
8 7 INDEX (RANGE SCAN) OF 'PALABRA' (INDEX (UNIQUE)) (Cost=2 Card=1)
9 6 INDEX (RANGE SCAN) OF 'PK_OCURRENCIAS' (INDEX (UNIQUE)) (Cost=2 Card=140 Bytes=2940)
10 5 TABLE ACCESS (BY INDEX ROWID) OF 'CENTRAL' (TABLE) (Cost=2 Card=1 Bytes=21)
11 10 INDEX (UNIQUE SCAN) OF 'PK_CENTRAL' (INDEX (UNIQUE)) (Cost=1 Card=1)
12 4 TABLE ACCESS (BY INDEX ROWID) OF 'CODTIT' (TABLE) (Cost=3 Card=1 Bytes=24)
13 12 INDEX (RANGE SCAN) OF 'PK_CODTIT' (INDEX (UNIQUE)) (Cost=2 Card=1)
14 3 TABLE ACCESS (BY INDEX ROWID) OF 'TITULOS' (TABLE) (Cost=1 Card=1 Bytes=175)
15 14 INDEX (UNIQUE SCAN) OF 'PK_TITULOS' (INDEX (UNIQUE)) (Cost=0 Card=1)
Statistics
154 recursive calls
0 db block gets
32070 consistent gets
1622 physical reads
0 redo size
305785 bytes sent via SQL*Net to client
2807 bytes received via SQL*Net from client
212 SQL*Net roundtrips to/from client
10 sorts (memory)
0 sorts (disk)
3149 rows processed
The query plan for the query WITHOUT Distinct and Order By is:
Elapsed: 00:00:03.57
Execution Plan
0 SELECT STATEMENT Optimizer=ALL_ROWS (Cost=299 Card=47 Bytes=12220)
1 0 NESTED LOOPS (Cost=299 Card=47 Bytes=12220)
2 1 NESTED LOOPS (Cost=250 Card=49 Bytes=4165)
3 2 NESTED LOOPS (Cost=103 Card=49 Bytes=2989)
4 3 NESTED LOOPS (Cost=5 Card=49 Bytes=1960)
5 4 TABLE ACCESS (BY INDEX ROWID) OF 'PALABRAS' (TABLE) (Cost=3 Card=1 Bytes=19)
6 5 INDEX (RANGE SCAN) OF 'PALABRA' (INDEX (UNIQUE)) (Cost=2 Card=1)
7 4 INDEX (RANGE SCAN) OF 'PK_OCURRENCIAS' (INDEX (UNIQUE)) (Cost=2 Card=140 Bytes=2940)
8 3 TABLE ACCESS (BY INDEX ROWID) OF 'CENTRAL' (TABLE) (Cost=2 Card=1 Bytes=21)
9 8 INDEX (UNIQUE SCAN) OF 'PK_CENTRAL' (INDEX (UNIQUE)) (Cost=1 Card=1)
10 2 TABLE ACCESS (BY INDEX ROWID) OF 'CODTIT' (TABLE) (Cost=3 Card=1 Bytes=24)
11 10 INDEX (RANGE SCAN) OF 'PK_CODTIT' (INDEX (UNIQUE)) (Cost=2 Card=1)
12 1 TABLE ACCESS (BY INDEX ROWID) OF 'TITULOS' (TABLE) (Cost=1 Card=1 Bytes=175)
13 12 INDEX (UNIQUE SCAN) OF 'PK_TITULOS' (INDEX (UNIQUE)) (Cost=0 Card=1)
Statistics
3376 recursive calls
0 db block gets
33443 consistent gets
1061 physical reads
0 redo size
313751 bytes sent via SQL*Net to client
2807 bytes received via SQL*Net from client
422 SQL*Net roundtrips to/from client
90 sorts (memory)
0 sorts (disk)
3149 rows processed
I would appreciate a lot if somebody can tell me how to improve the performance of the query with Distinct and Order By.
Thank you very much,
Icaro Alzuru C.

Hello,
I am getting an slow answer when I add Distinct and Order By to the query:
Without Distinct and Order By lasts 3.57 seconds; without Distinct and Order By lasts 28.15 seconds, which it's too much for our app.
The query is:
select distinct CC.acceso, CC.ext_acceso, TIT.TITULO_SALIDA
from (((Ocurrencias CT01 inner join
palabras p0 on (CT01.cod_palabra = p0.cod_palabra and p0.palabra like 'VENEZUELA%' AND p0.campo = 'AUTOR')) INNER JOIN
CENTRAL CC ON (CT01.ACCESO = CC.ACCESO AND CT01.EXT_ACCESO = CC.EXT_ACCESO))) inner join
codtit ctt on (CC.acceso = ctt.acceso and CC.ext_acceso = ctt.ext_acceso) inner join
titulos tit on (ctt.cod_titulo = tit.cod_titulo and ctt.portada = '1')
where CC.nivel_reg <> 's'
ORDER BY 3 ASC;
The query plan for the query WITH Distinct and Order By is:
Elapsed: 00:00:28.15
Execution Plan
0 SELECT STATEMENT Optimizer=ALL_ROWS (Cost=301 Card=47 Bytes=12220)
1 0 SORT (ORDER BY) (Cost=301 Card=47 Bytes=12220)
2 1 SORT (UNIQUE) (Cost=300 Card=47 Bytes=12220)
3 2 NESTED LOOPS (Cost=299 Card=47 Bytes=12220)
4 3 NESTED LOOPS (Cost=250 Card=49 Bytes=4165)
5 4 NESTED LOOPS (Cost=103 Card=49 Bytes=2989)
6 5 NESTED LOOPS (Cost=5 Card=49 Bytes=1960)
7 6 TABLE ACCESS (BY INDEX ROWID) OF 'PALABRAS' (TABLE) (Cost=3 Card=1 Bytes=19)
8 7 INDEX (RANGE SCAN) OF 'PALABRA' (INDEX (UNIQUE)) (Cost=2 Card=1)
9 6 INDEX (RANGE SCAN) OF 'PK_OCURRENCIAS' (INDEX (UNIQUE)) (Cost=2 Card=140 Bytes=2940)
10 5 TABLE ACCESS (BY INDEX ROWID) OF 'CENTRAL' (TABLE) (Cost=2 Card=1 Bytes=21)
11 10 INDEX (UNIQUE SCAN) OF 'PK_CENTRAL' (INDEX (UNIQUE)) (Cost=1 Card=1)
12 4 TABLE ACCESS (BY INDEX ROWID) OF 'CODTIT' (TABLE) (Cost=3 Card=1 Bytes=24)
13 12 INDEX (RANGE SCAN) OF 'PK_CODTIT' (INDEX (UNIQUE)) (Cost=2 Card=1)
14 3 TABLE ACCESS (BY INDEX ROWID) OF 'TITULOS' (TABLE) (Cost=1 Card=1 Bytes=175)
15 14 INDEX (UNIQUE SCAN) OF 'PK_TITULOS' (INDEX (UNIQUE)) (Cost=0 Card=1)
Statistics
154 recursive calls
0 db block gets
32070 consistent gets
1622 physical reads
0 redo size
305785 bytes sent via SQL*Net to client
2807 bytes received via SQL*Net from client
212 SQL*Net roundtrips to/from client
10 sorts (memory)
0 sorts (disk)
3149 rows processed
The query plan for the query WITHOUT Distinct and Order By is:
Elapsed: 00:00:03.57
Execution Plan
0 SELECT STATEMENT Optimizer=ALL_ROWS (Cost=299 Card=47 Bytes=12220)
1 0 NESTED LOOPS (Cost=299 Card=47 Bytes=12220)
2 1 NESTED LOOPS (Cost=250 Card=49 Bytes=4165)
3 2 NESTED LOOPS (Cost=103 Card=49 Bytes=2989)
4 3 NESTED LOOPS (Cost=5 Card=49 Bytes=1960)
5 4 TABLE ACCESS (BY INDEX ROWID) OF 'PALABRAS' (TABLE) (Cost=3 Card=1 Bytes=19)
6 5 INDEX (RANGE SCAN) OF 'PALABRA' (INDEX (UNIQUE)) (Cost=2 Card=1)
7 4 INDEX (RANGE SCAN) OF 'PK_OCURRENCIAS' (INDEX (UNIQUE)) (Cost=2 Card=140 Bytes=2940)
8 3 TABLE ACCESS (BY INDEX ROWID) OF 'CENTRAL' (TABLE) (Cost=2 Card=1 Bytes=21)
9 8 INDEX (UNIQUE SCAN) OF 'PK_CENTRAL' (INDEX (UNIQUE)) (Cost=1 Card=1)
10 2 TABLE ACCESS (BY INDEX ROWID) OF 'CODTIT' (TABLE) (Cost=3 Card=1 Bytes=24)
11 10 INDEX (RANGE SCAN) OF 'PK_CODTIT' (INDEX (UNIQUE)) (Cost=2 Card=1)
12 1 TABLE ACCESS (BY INDEX ROWID) OF 'TITULOS' (TABLE) (Cost=1 Card=1 Bytes=175)
13 12 INDEX (UNIQUE SCAN) OF 'PK_TITULOS' (INDEX (UNIQUE)) (Cost=0 Card=1)
Statistics
3376 recursive calls
0 db block gets
33443 consistent gets
1061 physical reads
0 redo size
313751 bytes sent via SQL*Net to client
2807 bytes received via SQL*Net from client
422 SQL*Net roundtrips to/from client
90 sorts (memory)
0 sorts (disk)
3149 rows processed
I would appreciate a lot if somebody can tell me how to improve the performance of the query with Distinct and Order By.
Thank you very much,
Icaro Alzuru C.

HT204053 i used the same apple id for my iphone and my husbands now all our contacts and such are on both phones how do i fix this. I dont need his contacts on my phone and the other way also. Should i create a different icloud account for his phone?

I used the same apple id for my iphone and my husbands now all our contacts and such are together. How do I undo this? Do i create him a different icloud account?

Yes, start with deleting your account on his device:
(Settings > iCloud or Settings > Mail, Contacts, Calendar > Your Account)
In the next step, create a new account on his device:
(Settings > iCloud or Settings > Mail, Contacts, Calendar > Your Account)

I have 1 old coputer and 1 new 2 different versions of itunes. can they work together. ie can I use the new one to update our iphones and such and if so will our older itunes version8.2 get changed or lost?

We have two computers. One is older and one is newer. The older has itunes on it (version 8.2) and can no onger update. We want to install itunes on our newer computer to allow us to update our iphones. Can we install 10.2 on the newer computer and use it for updates and such without affecting the older computer? Will my wife be able to still play her music from her older computer and if we buy new music will it upload to both computers.
Example if she buys ten more songs on her computer(older one) will it automatically upload them to the newer computer when we turn it on? And if I buy a song on the newer computer would it show up on her older version of itunes or not?

Have a look here...
http://macmost.com/setting-up-multiple-ios-devices-for-messages-and-facetime.htm l

Cm:select - howo to use distinct and such

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