Help with Oracle connection
Hi,
I am new to the whole Java experience and am wading my way through servlets pretty well. However, I have run across a problem that I simply cannot connect the pieces of. I have a set of servlets that I am planning on deploying to a client. These servlets will connect to an Oracle database. Since the client connection url/user/password will not be the same as the values I am using in my development efforts, I don't want to set the values in my servlets, i.e:
OracleConnectionPoolDataSource ocpds = new OracleConnectionPoolDataSource();
ocpds.setURL("jdbc:oracle:thin:@databasename");
ocpds.setUser("User");
ocpds.setPassword("Password");
// Create a pooled connection
PooledConnection pc = ocpds.getPooledConnection();
I have created my servlets using Oracle's JDeveloper, so I have a connections.xml file and a data-sources.xml file which contain the URL, userID and Password of the instance to connect to.
Is there a way I can grab that information from the connections.xml file or the data-sources.xml file from within my servlet, so I don't have to give static values for the URL, userID and password within the servlet?
Thanks for the help,
-Pete
Hi Pete,
You can do either one of two solutions:
(1) Your XML files idea is a good one. Read them in the servlet init method and hang onto the values.
(2) You can create a JNDI DSN and use a pooled connection that's maintained by your servlet/JSP container. Here's how I do it with Tomcat 4.1:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jndi-datasource-examples-howto.html
Maybe that will give you some ideas on how to accomplish the same thing using your container. - MOD
Similar Messages
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Help with Oracle Connection- "Input string was not in a correct format"
Hello, can some one, anyone please help me. I have a simple VS 2005 C# application that connects to oracle. I've set it up to take the username, password and tnsname as arguments. I am using Client 9i, version 9.2.0.401 of Oracle.DataAccess.dll, and .NET Framework 2.0.
It works fine when I run it from VS 2005, I have also set up a test machine w/o VS 2005 and ran my install package and it runs fine. I sent it to one of my co-workers and when he tries it the OracleConnection obect fails with the error.
"Input string was not in a correct format"
strange in that it is not an ORA error, just the identifed text!?
Here is the code:
## begin code
OracleConnection dbc = new OracleConnection();
string sConnectString = "User Id=" + username.ToString() + ";Password=" + password.ToString() + ";Data Source=" + tnsname.ToString();
dbc.ConnectionString = sConnectString.ToString();
MessageBox.Show("Attempting to Connect to Oracle");
dbc.Open();
MessageBox.Show("Connected to Oracle: " + dbc.ServerVersion);
## end code
Pretty basic, what could be going on?
Since this only happens with an installation, I put in the message boxes to verify exactly where it chokes. I get the first message box, then an error with the identified text. I've seen a number of posts regarding input string format problems, but not a one dealing with OracleConnection.Open(). I added all the ToString() calls just to make sure everything was a string but it did not change the end result.
Anyone? Thanks In advance!
Eric S.Hello,
well, i got a message "...string not wellformed format...", too.
If you have defined the parameters as string, you don't need the additonal "ToString()". Please ckeck your tnsnames -string. Try to debug this. I believe you have copy the format from the tnsnames.ora and there you have much brackets.
For example, two code snippets:
As datasource i use <Server>:<Port>/<Instance>
try
string FDsn ="User Id="+FDbUser+";Password="+FDbPwd;
FDsn +=";Data Source=wth5:1521/Ora9.wth5";
FConn = new OracleConnection(FDsn);
FConn.Open();
if (FConn.State == ConnectionState.Open )
FConn.Close();
catch (Exception ex)
FStateMsg = "Connection to database failed. Check Configuration in parameter: ConnectionString. " + ex.Message;
Above i connect to a Ora 9.2.0.1
by using
FDsn +=";Data Source=wth5:1522/XE";
i connect to an OraExpress database on the same machine.
My Oracle.dataAccess.dll ist the newest, 10.2.... and it runs under Framework 1.1.x and Framework 2.x
I'll hope it will help you. Best regards! -
Help with Oracle Connection Pooling
Hi,
I want to create a connection pool that can be accessible in any jsp and in any class of my web application. Is it a good idea to create a class with a static member of type OracleDataSource or any class that handles connections?Rafa,
In order to use JSP, you usually need an application server.
Oracle's application server already has connection pooling built in.
No need to re-invent the wheel.
(In fact most application servers provide database connection pooling.)
Good Luck,
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Request Help With Oracle BI Apps 7.9.x development license
Request some one from Oracle to PLEASE help with the following query or help me to move the post to right forum.
I have downloaded BI Apps 7.9 to load it on top of BI EE. These are received from Development Downloads under OTN site (not eDelivery). Both these are planned as development install on one machine with sufficient specs on Windows 32 bit platform.
BI EE is loaded and starts successfully. Then switched of the services and started to load BI Apps CD1. Done it successfully. Next while starting to install Informatica PowerCenter 7.1.4 it asks product license key. Please help to know where to get this key? Also please help with any connectivity and options key, as well as those for any other products, related to this objective.
Many thanks,Hi RAJC,
Many thanks for the suggestion. I have moved past that aspect now with this help. Have also verified that everything is working well with BI server, presentation services, scheduler server etc. Admin tool works fine.
But have difficulty connecting DAC client to the database. The login window does not bring up option to select suitable driver for connecting to Oracle Database 10.2.0.x Also, wonder what table owner name and pw will work here? are they the same as those for schema owner? that is sh.rpd etc? The BI apps version is 7.9 and BIEE is 10.1.3.3
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Help with oracle 11g pivot operator
i need some help with oracle 11g pivot operator. is it possible to use multiple columns in the FOR clause and then compare it against multiple set of values.
here is the sql to create some sample data
create table pivot_data ( country_code number , dept number, job varchar2(20), sal number );
insert into pivot_data values (1,30 , 'SALESMAN', 5000);
insert into pivot_data values (1,301, 'SALESMAN', 5500);
insert into pivot_data values (1,30 , 'MANAGER', 10000);
insert into pivot_data values (1,301, 'MANAGER', 10500);
insert into pivot_data values (1,30 , 'CLERK', 4000);
insert into pivot_data values (1,302, 'CLERK',4500);
insert into pivot_data values (2,30 , 'SALESMAN', 6000);
insert into pivot_data values (2,301, 'SALESMAN', 6500);
insert into pivot_data values (2,30 , 'MANAGER', 11000);
insert into pivot_data values (2,301, 'MANAGER', 11500);
insert into pivot_data values (2,30 , 'CLERK', 3000);
insert into pivot_data values (2,302, 'CLERK',3500);
using case when I can write something like this and get the output i want
select country_code
,avg(case when (( dept = 30 and job = 'SALESMAN' ) or ( dept = 301 and job = 'SALESMAN' ) ) then sal end ) as d30_sls
,avg(case when (( dept = 30 and job = 'MANAGER' ) or ( dept = 301 and job = 'MANAGER' ) ) then sal end ) as d30_mgr
,avg(case when (( dept = 30 and job = 'CLERK' ) or ( dept = 302 and job = 'CLERK' ) ) then sal end ) as d30_clrk
from pivot_data group by country_code;
output
country_code D30_SLS D30_MGR D30_CLRK
1 5250 10250 4250
2 6250 11250 3250
what I tried with pivot is like this I get what I want if I have only one ( dept,job) for one alias name. I want to call (30 , 'SALESMAN') or (301 , 'SALESMAN') AS d30_sls. any help how can I do this
SELECT *
FROM pivot_data
PIVOT (SUM(sal) AS sum
FOR (dept,job) IN ( (30 , 'SALESMAN') AS d30_sls,
(30 , 'MANAGER') AS d30_mgr,
(30 , 'CLERK') AS d30_clk
this is a simple example .... my real life scenario is compliated with more fields and more combinations .... So something like using substr(dept,1,2) won't work in my real case .
any suggestions get the result similar to what i get in the case when example is really appreciated.Hi,
Sorry, I don't think there's any way to get exactly what you requested. The values you give in the PIVOT ... IN clause are exact values, not alternatives.
You could do something like this to map all alternatives to a common value:
WITH got_dept_grp AS
SELECT country_code, job, sal
, CASE
WHEN job IN ('SALESMAN', 'MANAGER') AND dept = 301 THEN 30
WHEN job IN ('CLERK') AND dept = 302 THEN 30
ELSE dept
END AS dept_grp
FROM pivot_data
SELECT *
FROM got_dept_grp
PIVOT ( AVG (sal)
FOR (job, dept_grp)
IN ( ('SALESMAN', 30)
, ('MANAGER' , 30)
, ('CLERK' , 30)
;In your sample data (and perhaps in your real data), it's about as easy to explicitly define the pivoted groups individually, like this:
WITH got_pivot_key AS
SELECT country_code, sal
, CASE
WHEN job = 'SALESMAN' AND dept IN (30, 301) THEN 'd30_sls'
WHEN job = 'MANAGER' AND dept IN (30, 301) THEN 'd30_mgr'
WHEN job = 'CLERK' AND dept IN (30, 302) THEN 'd30_clrk'
END AS pivot_key
FROM pivot_data
SELECT *
FROM got_pivot_key
PIVOT ( AVG (sal)
FOR pivot_key
IN ( 'd30_sls'
, 'd30_mgr'
, 'd30_clrk'
;Thanks for posting the CREATE TABLE and INSERT statements; that really helps! -
Hi,
I need some help... if someone can help its great.
I need to make a statement in Oracle SQL that read data from a file and insert in a Oracle Database ... if someone can show me the syntax of it i appreciate..
ThanksOkay, I see you followed the advice in that other thread and started a new post for you question. Congratulations. Your next lesson in forum etiquette is to give your posts a more relevant subject. Pretty much everybody who posts here needs help with oracle; if they need help with cooking catfish they've come to the wrong place.
It that other thread I suggested using SQL*Loader or External Tables might be a more suitable solution. Find out more.
Cheers, APC -
Help with Oracle Report Builder and SQL Server2000
Hey guys,
I just installed it Oracle Developer Suite10g with Report Builder and I am trying to use Report builder and wants to connect with SQL Server 2000. The problem that I am running in to is SQL Server 2000 i have is Window Authentication so Does not required to enter user name and password. So how can i connect my report builder to SQL server or is it possible to connect Report builder to SQL server?
Also, I want to create small practice version of database in Oracle how do i do it? what i mean by that is I installed trial version or Oracle developer 10g from www.oracle.com and now trying to get some knowledge with oracle. Could any one can give me some direction in this matter please.
Thank You
KeyHave a look at the reports help for the purpose header and trailer sections. Here is an exert:
"Report sectioning enables you to define multiple layouts in the same report, each with a different target audience, output format, page layout, page size, or orientation. You can define up to three report sections, each with a body area and a margin area: the names of the sections are Header, Main, and Trailer. By default, a report is defined in the Main section. In the other sections, you can define different layouts, rather than creating multiple separate reports. If you wish, you can use the margin and body of the Header and Trailer sections to create a Header and Trailer page for your reports." -
Can't See Fields or Views with Oracle Connection
We have a report that connected to Oracle. Previously, we were able to see the tables and views and connected some of them in our report. However, now we can't see those tables or views. We can see the fields under them but not the tables or views they belong to. Is there anything we can change to fix this?
Hi,
please check in Options --> Database Tab --> Tables,Views,Stored procedures are checked .
If you are using Odbc connection some times it may happen. Try with oledb connection
Regards,
Sathish -
Help with Oracle 9i/10g on RedHat 4?
If anybody can help would be greatly appreciated...
I get the same error with Oracle 9i & 10g when installing on Red Hat Fedora 4, it's java related...
Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/OraInstall2007-03-16_01-09PM/jre/lib/i386/libawt.so: connat restore segment prot after reloc: Permission Denied
Red Hat Fedora is weak on java, it only has the Java 1.4 JRE installed. I tried to upgrade to Sun's JRE 6 but got dependency errors.
JonRed Hat Fedora 4Does not exist.
Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/OraInstall2007-03-16_01-09PM/jre/lib/i386/libawt.so: connat restore segment prot after reloc: Permission DeniedSolution 1: Modify /etc/selinux/config and change value of SELINUX to "disabled" and reboot computer.
Solution 2: Upgrade selinux-policy-targeted-1.25.2-4.noarch.rpm (Use command: "yum upgrade selinux-policy-targeted")
Red Hat Fedora is weak on java, it only has the Java 1.4 JRE installed. I tried to upgrade to Sun's JRE 6 but got dependency errors.??? OUI does not have to do with external JRE.
Oracle Installation comes with bunled JRE.
If you are using Fedora then you might consider these articles useful:
http://ivan.kartik.sk/oracle/install_ora9_fedora.html
http://ivan.kartik.sk/oracle/install_ora10gR2_fedora.html -
[8i] Need help with hierarchical (connect by) query
First, I'm working in 8i.
My problem is, I keep getting the error ORA-01437: cannot have join with CONNECT BY.
And, the reason I get that error is because one of the criteria I need to use to prune some branches with is in another table... Is there anyway to work around this? I tried an in-line view (but got the same error). I thought about using the connect by query as an in-line view and filtering off what I don't want that way, but I'm not sure how to filter out an entire branch...
Here is some simplified sample data:
CREATE TABLE bom_test
( parent CHAR(25)
, component CHAR(25)
, qty_per NUMBER(9,5)
INSERT INTO bom_test
VALUES ('ABC-1','101-34',10);
INSERT INTO bom_test
VALUES ('ABC-1','A-109-347',2);
INSERT INTO bom_test
VALUES ('ABC-1','ABC-100G',1);
INSERT INTO bom_test
VALUES ('ABC-1','1A247G01',2);
INSERT INTO bom_test
VALUES ('ABC-100G','70052',18);
INSERT INTO bom_test
VALUES ('ABC-100G','M9532-278',5);
INSERT INTO bom_test
VALUES ('1A247G01','X525-101',2);
INSERT INTO bom_test
VALUES ('1A247G01','1062-324',2);
INSERT INTO bom_test
VALUES ('X525-101','R245-9010',2);
CREATE TABLE part_test
( part_nbr CHAR(25)
, part_type CHAR(1)
INSERT INTO part_test
VALUES ('ABC-1','M');
INSERT INTO part_test
VALUES ('101-34','P');
INSERT INTO part_test
VALUES ('A-109-347','P');
INSERT INTO part_test
VALUES ('ABC-100G','M');
INSERT INTO part_test
VALUES ('1A247G01','P');
INSERT INTO part_test
VALUES ('70052','P');
INSERT INTO part_test
VALUES ('M9532-278','P');
INSERT INTO part_test
VALUES ('X525-101','M');
INSERT INTO part_test
VALUES ('1062-324','P');
INSERT INTO part_test
VALUES ('R245-9010','P');This is the basic query (with no pruning of branches):
SELECT LEVEL
, b.component
, b.parent
, b.qty_per
FROM bom_test b
START WITH b.parent = 'ABC-1'
CONNECT BY PRIOR b.component = b.parentThe query above gives the results:
LEVEL COMPONENT PARENT QTY_PER
1.000 101-34 ABC-1 10.000
1.000 A-109-347 ABC-1 2.000
1.000 ABC-100G ABC-1 1.000
2.000 70052 ABC-100G 18.000
2.000 M9532-278 ABC-100G 5.000
1.000 1A247G01 ABC-1 2.000
2.000 X525-101 1A247G01 2.000
3.000 R245-9010 X525-101 2.000
2.000 1062-324 1A247G01 2.000
9 rows selected....but I only want the branches (children, grandchildren, etc.) of part type 'M'.
e.g.:
LEVEL COMPONENT PARENT QTY_PER
1.000 101-34 ABC-1 10.000
1.000 A-109-347 ABC-1 2.000
1.000 ABC-100G ABC-1 1.000
2.000 70052 ABC-100G 18.000
2.000 M9532-278 ABC-100G 5.000
1.000 1A247G01 ABC-1 2.000Any suggestions?Hi,
user11033437 wrote:
First, I'm working in 8i.
My problem is, I keep getting the error ORA-01437: cannot have join with CONNECT BY.
And, the reason I get that error is because one of the criteria I need to use to prune some branches with is in another table... Is there anyway to work around this? I tried an in-line view (but got the same error). Post your query. It's very hard to tell what you're doing wrong if we don't know what you're doing.
...but I only want the branches (children, grandchildren, etc.) of part type 'M'.
e.g.:
LEVEL COMPONENT PARENT QTY_PER
1.000 101-34 ABC-1 10.000
1.000 A-109-347 ABC-1 2.000
1.000 ABC-100G ABC-1 1.000
2.000 70052 ABC-100G 18.000
2.000 M9532-278 ABC-100G 5.000
1.000 1A247G01 ABC-1 2.000
You mean you want don't want the descendants (children, grandchildren, etc.) of any component whose part_type is not 'M'.
The part_type of the component itself doesn't matter: component '101-34' is included, even though its part_type is 'P', and component 'X525-101' is excluded, even though its part_type is 'M'.
>
Any suggestions?Sorry, I don't have an Oracle 8.1 database at hand now. All three of the queries below get the correct results in Oracle 10.2, and I don't believe they do anything that isn't allowed in 8.1.
You can't do a join and CONNECT BY in the same query on Oracle 8.1.
I believe you can do one first, then the other, using in-line views. The frist two queries do the join first.
-- Query 1: Join First
SELECT LEVEL
, component
, parent
, qty_per
FROM ( -- Begin in-line view to join bom_test and part_test
SELECT b.component
, b.parent
, b.qty_per
, p.part_type AS parent_type
FROM bom_test b
, part_test p
WHERE p.part_nbr = b.parent
) -- End in-line view to join bom_test and part_test
START WITH parent = 'ABC-1'
CONNECT BY parent = PRIOR component
AND parent_type = 'M'
;Query 2 is very much like Query 1, but it does more filtering in the sub-query, returning only rows hose part_type or whose parent's part_type is 'M". Your desired result set will be a tree taken entirely from this set. Query 2 may be faster, because the sub-query is more selective, but then again, it may be slower because it has to do an extra join.
{code}
-- Query 2: Join first, prune in sub-query
SELECT LEVEL
, component
, parent
, qty_per
FROM ( -- Begin in-line view to join bom_test and part_test
SELECT b.component
, b.parent
, b.qty_per
, p.part_type AS parent_type
FROM bom_test b
, part_test p
, part_test c
WHERE p.part_nbr = b.parent
AND c.part_nbr = b.component
AND 'M' IN (c.part_type, p.part_type)
) -- End in-line view to join bom_test and part_test
START WITH parent = 'ABC-1'
CONNECT BY parent = PRIOR component
AND parent_type = 'M'
{code}
Query 3, below, takes a completely different approach. It does the CONNECT BY query first, then does a join to see what the parent's part_type is. We can easily cut out all the nodes whose parent's part_type is not 'M', but that will leave components like 'R245-9010' whose parent has part_type 'M', but should be excluded because its parent is excluded. To get the correct results, we can do another CONNECT BY query, using the same START WITH and CONNECT BY conditions, but this time only looking at the pruhed results of the first CONNECT BY query.
{code}
-- Query 3: CONNECT BY, Prune, CONNECT BY again
SELECT LEVEL
, component
, parent
, qty_per
FROM ( -- Begin in-line view of 'M' parts in hierarchy
SELECT h.component
, h.parent
, h.qty_per
FROM ( -- Begin in-line view h, hierarchy from bom_test
SELECT component
, parent
, qty_per
FROM bom_test
START WITH parent = 'ABC-1'
CONNECT BY parent = PRIOR component
) h -- End in-line view h, hierarchy from bom_test
, part_test p
WHERE p.part_nbr = h.parent
AND p.part_type = 'M'
) -- End in-line view of 'M' parts in hierarchy
START WITH parent = 'ABC-1'
CONNECT BY parent = PRIOR component
{code}
I suspect that Query 3 will be slower than the others, but if the CONNECT BY query is extremely selective, it may be better.
It would be interesting to see your findings using the full tables. Please post your observations and the explain plan output.
As usual, your message is a model of completeness and clarity:
<ul>
<li>good sample data,
<li> posted in a way people can use it,
<li>clear results,
<li> good explanation
<li> nciely formatted code
</ul>
Keep up the good work! -
Help with: oracle.toplink.essentials.exceptions.ValidationException
hi guys,
I really need ur help with this.
I have a remote session bean that retrieves a list of books from the database using entity class and I call the session bean from a web service. The problem is that when i display the books in a jsp directly from the session bean everything works ok but the problem comes when I call the session bean via the web service than it throws this:
Exception Description: An attempt was made to traverse a relationship using indirection that had a null Session. This often occurs when an entity with an uninstantiated LAZY relationship is serialized and that lazy relationship is traversed after serialization. To avoid this issue, instantiate the LAZY relationship prior to serialization.
at oracle.toplink.essentials.exceptions.ValidationException.instantiatingValueholderWithNullSession(ValidationException.java:887)
at oracle.toplink.essentials.internal.indirection.UnitOfWorkValueHolder.instantiate(UnitOfWorkValueHolder.java:233)
at oracle.toplink.essentials.internal.indirection.DatabaseValueHolder.getValue(DatabaseValueHolder.java:105)
at oracle.toplink.essentials.indirection.IndirectList.buildDelegate(IndirectList.java:208)
at oracle.toplink.essentials.indirection.IndirectList.getDelegate(IndirectList.java:330)
at oracle.toplink.essentials.indirection.IndirectList$1.<init>(IndirectList.java:425)
at oracle.toplink.essentials.indirection.IndirectList.iterator(IndirectList.java:424)
at com.sun.xml.bind.v2.runtime.reflect.Lister$CollectionLister.iterator(Lister.java:278)
at com.sun.xml.bind.v2.runtime.reflect.Lister$CollectionLister.iterator(Lister.java:265)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:129)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.property.ArrayElementNodeProperty.serializeItem(ArrayElementNodeProperty.java:65)
at com.sun.xml.bind.v2.runtime.property.ArrayElementProperty.serializeListBody(ArrayElementProperty.java:168)
at com.sun.xml.bind.v2.runtime.property.ArrayERProperty.serializeBody(ArrayERProperty.java:152)
at com.sun.xml.bind.v2.runtime.ClassBeanInfoImpl.serializeBody(ClassBeanInfoImpl.java:322)
at com.sun.xml.bind.v2.runtime.XMLSerializer.childAsXsiType(XMLSerializer.java:681)
at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:277)
at com.sun.xml.bind.v2.runtime.BridgeImpl.marshal(BridgeImpl.java:100)
at com.sun.xml.bind.api.Bridge.marshal(Bridge.java:141)
at com.sun.xml.ws.message.jaxb.JAXBMessage.writePayloadTo(JAXBMessage.java:315)
at com.sun.xml.ws.message.AbstractMessageImpl.writeTo(AbstractMessageImpl.java:142)
at com.sun.xml.ws.encoding.StreamSOAPCodec.encode(StreamSOAPCodec.java:108)
at com.sun.xml.ws.encoding.SOAPBindingCodec.encode(SOAPBindingCodec.java:258)
at com.sun.xml.ws.transport.http.HttpAdapter.encodePacket(HttpAdapter.java:320)
at com.sun.xml.ws.transport.http.HttpAdapter.access$100(HttpAdapter.java:93)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:454)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:135)
at com.sun.enterprise.webservice.JAXWSServlet.doPost(JAXWSServlet.java:176)
... 29 more
This happens when I test the web service using netbeans 6.5.
here's my code:
session bean:
ArrayList bookList = null;
public ArrayList retrieveBooks()
try
List list = em.createNamedQuery("Book.findAll").getResultList();
bookList = new ArrayList(list);
catch (Exception e)
e.getCause();
return bookList;
web service:
@WebMethod(operationName = "retrieveBooks")
public Book[] retrieveBooks()
ArrayList list = ejbUB.retrieveBooks();
int size = list.size();
Book[] bookList = new Book[size];
Iterator it = list.iterator();
int i = 0;
while (it.hasNext())
Book book = (Book) it.next();
bookList[i] = book;
i++;
return bookList;
Please help guys, it's very urgentYes i have a relationship but i didnt want it to be directly. Maybe this is a design problem but in my case I dont expect any criminals to be involved in lawsuit. My tables are like that:
CREATE TABLE IF NOT EXISTS Criminal(
criminal_id INTEGER NOT NULL AUTO_INCREMENT,
gender varchar(1),
name varchar(25) NOT NULL,
last_address varchar(100),
birth_date date,
hair_color varchar(10),
eye_color varchar(10),
weight INTEGER,
height INTEGER,
PRIMARY KEY (criminal_id)
ENGINE=INNODB;
CREATE TABLE IF NOT EXISTS Lawsuit(
lawsuit_id INTEGER NOT NULL AUTO_INCREMENT,
courtName varchar(25),
PRIMARY KEY (lawsuit_id),
FOREIGN KEY (courtName) REFERENCES Court_of_Law(courtName) ON DELETE NO ACTION
ENGINE=INNODB;
CREATE TABLE IF NOT EXISTS Rstands_trial(
criminal_id INTEGER,
lawsuit_id INTEGER,
PRIMARY KEY (criminal_id, lawsuit_id),
FOREIGN KEY (criminal_id) REFERENCES Criminal(criminal_id) ON DELETE NO ACTION,
FOREIGN KEY (lawsuit_id) REFERENCES Lawsuit(lawsuit_id) ON DELETE CASCADE
ENGINE=INNODB;So I couldnt get it. -
Can someone help with a connection problem?
I have a DroidX2 and have noticed that the phone routinely switches from 3G to 1X, especially in certain rooms in the house..
This is consistant and usually the signal is only two bars.
Whenever I try to watch a Youtube video it will play for maybe 12 seconds and then I will have to play with the settings in Youtube to download more of the video. Maybe 1 out of 50 times the video plays straight through without stopping. Most of the time the screen will show 1X instead of 3G. Could it be my phone settings, phone coverage or Youtube causing the problem? I sometimes have dropped calls as well. I have the most current software and Youtube was recently updated. I am also receiving "cannot establish a connection" messages on Youtube. Can someone please help? Thank you.Lorenzo1950, thanks for posting! Are you still having issues with your connections? What is your zip code? How long has this been an issue? Does this issue with streaming video only happen at home or everywhere?^SP
-
Can you help with my connection issues
I cannot connect to my Contribute CS3 even though my server is fine. Does anyone have any suggestions? I spent the last hour on the phone with my server company and they tried but failed to help me connect.
Please try the following steps.
Delete the existing connection from Edit -> My connection .
Create a new connection and when you Click the Advanced button next to the "How do you connect to your web server?" field in the Connection Information dialog box.
Try toggling the Passive Mode check box (if it is unchecked, check it; if it is checked, uncheck it).
If you are behind a firewall, check the Use firewall/proxy settings when connecting check box and click the Firewall Settings or Proxy Settings button to enter firewall information. Ask your local network administrator for help with these settings.
Once done with the new connection you would be able to connect to your website. For more information on connection issues you may use this link http://helpx.adobe.com/contribute/kb/troubleshoot-connection-problems-contribute.html
Regards,
Rajeev -
Help with Oracle PL/SQL and Objects...
Hi,
I wonder if you can help me, I am having some trouble dealing with Oracle objects in PL/SQL. I can declare them, populate them and read from them without any issues.
But I am having some problems with trying to copy records in to other records of the same type, and also with updating existing records. I've made a mock up piece of code below to explain what I mean, it may have a few mistakes as I've written it in notepad but should be reasonably clear.
First I have created a record type, which contains attributes relating to a person.....
CREATE OR REPLACE
TYPE PERSON_RECORD_TYPE AS object (
Person_ID NUMBER(3),
Person_Name VARCHAR(20),
Person_Age NUMBER(2),
static function new return PERSON_RECORD_TYPE );
CREATE OR REPLACE
TYPE BODY PERSON_RECORD_TYPE as
static function new return PERSON_RECORD_TYPE is
BEGIN
return PERSON_RECORD_TYPE (
NULL,
NULL,
NULL,
NULL,
NULL
END;
END;
Then I have created a table type, which is a table of the person record type......
CREATE OR REPLACE
type PERSON_TABLE_TYPE as table of PERSON_RECORD_TYPE;
Finally I have created a procedure which recieves an instance of the person table type and reads through it using a cursor.....
PROCEDURE ADMIN_PERSON (incoming_person IN PERSON_TABLE_TYPE)
IS
-- This is a local record declared as the same type as the incoming object
local_person PERSON_TABLE_TYPE;
-- Cursor to select all from the incoming object
CURSOR select_person
IS
SELECT *
FROM TABLE ( cast (incoming_person AS PERSON_TABLE_TYPE));
BEGIN
-- Loop to process cursor results
FOR select_person_rec IN select_person
LOOP
/* Up to this point works fine...*/
-- If I want to store the current cursor record in a local record of the same type, I can do this....
local_person.person_id := select_person_rec.person_id;
local_person.person_name := select_person_rec.person_name;
local_person.person_age := select_person_rec.person_age;
-- QUESTION 1
-- The above works fine, but in my real example there are a lot more fields
-- Why cant I set the local record to the value of the cursor record like this below..
local_person := select_person_rec;
-- The above line gives a pl/sql error - expression is of wrong type, (as far as I can see the records are of the same type?)
-- QUESTION 2
--Also how do you update an existing record within the original object, I have tried the following but it does not work
UPDATE incoming_person
SET age = (age + 1)
WHERE incoming_person.person_id = '123';
-- The error here is that the table does not exist
END LOOP;
END;
So I hope that you can see from this, I have two problems. The first is that I can store the current cursor record in a local record if I assign each attribute one at a time, but my real example has a large number of attributes. So why can't I just assign the entire cursor record to the local cursor record?
I get a PL/SQL error "Expression is of wrong type" when I try to do this.
The second question is with regards to the update statement, obviously this doesn't work, it expects a table name here instead. So can anyone show me how I should update existing person records in the incoming table type to the procedure?
I hope this makes sense, but I don't think I have explained it very well!!
Any help will be gratefully recieved!!
ThanksI understand why you are having trouble - my own brain started to hurt looking at your questions :)
First off, database types are not records. They can act like records but are "objects" with different characterstics.
You can create a record in PL/SQL but the "type" is of RECORD. You created an OBJECT as BODY_PERSON_RECORD_TYPE.
I don't use database types unless I really need them, such as for working with pipelined functions.
-- QUESTION 1
-- The above works fine, but in my real example there are a lot more fields
-- Why cant I set the local record to the value of the cursor record like this below..
local_person := select_person_rec; local_person is set to the (misnamed) BODY_PERSON_RECORD_TYPE, while SELECT_PERSON_REC is anchored to the cursor and is a RECORD of SELECT_PERSON%ROWTYPE with a field for each column selected in the query. Different types, not compatible.
You should be able to manually assign the object items one by one as object.attribute := record.field one field at a time.
-- QUESTION 2
--Also how do you update an existing record within the original object, I have tried the following but it does not workCheck the on-line documentation for the syntax. You'll probably have to reference the actual value through the table; this is one reason why I don't work with nested tables - the syntax to do things like updates is much more complex. -
Help with Oracle Table Audit Trigger
Hi Guys,
Need some help with the design of a trigger please. I have created one standard audit table where all sensitive data will be audited/inserted. The idea is to insert the column name and the old and new values here, dont want to maintain an audit table for each and every table there is, reporting would be a nightmare.
Trying to fetch all the column names from sys objects then looping through each and inserting the new and old values for them into the audit table. Everything else is fine apart from the actual :old and :new value inserts. The column name is coming from a variable in a cursor and this is where I seem to be failing.
Can anyone help please? What is the correct syntax to use?
CREATE OR REPLACE TRIGGER commission_update
AFTER UPDATE
ON commission
FOR EACH ROW
DECLARE
v_username varchar2(10);
v_column varchar2(20);
-- Get Table Columns
cursor table_column is
select c.name
from sys.col$ c, sys.obj$ t
where t.obj# = c.obj#
and t.type# in (2, 3, 4)
and bitand(c.property, 32) = 0 /* not hidden column */
and t.name = 'COMMISSION';
BEGIN
-- Find username of person performing UPDATE into table
SELECT user
INTO v_username
FROM dual;
open table_column;
loop
fetch table_column
into v_column;
EXIT WHEN table_column%NOTFOUND;
-- Insert record into audit_record
INSERT INTO audit_record
( aud_code,
aud_ban_code,
aud_user,
aud_table,
aud_column,
aud_old_val,
aud_new_val,
aud_date )
VALUES
( xaudit_record.nextval,
:old.com_ban_code,
v_username,
'COMMISSION',
v_column,
:old.v_column, /* problem here!!!!!!! */
:new.v_column, /* problem here!!!!!!! */
sysdate );
end loop;
close table_column;
END;
/What does auditing mean in the financial environment? "An audit is a professional, independent examination of a company's financial statements and accounting documents according to generally accepted accounting principles."
What does it mean in database terms? Surely, the basic definition would be the same, ito of a proper independent examination of changes in the database according to accepted principles?
And just how does a trigger live up to that? When it is fully dependent on being enabled for that transaction in order to examine it? It is trivial to disable a trigger, make changes, and re-enable it.
So what happens to your "auditing" then?
Do you really think that a trigger suffices as a means to audit changes in a table? And if so, what logic and reasoning do you use to discard Oracle's auditing features that are built into the core of the database?
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