Linked tables, stored procedures, and locking

I'm working on an interface between two Oracle systems. I don't know if they're on the same server or not, but they are definitely two different database instances. The plan for this interface is that when a record is created on one of the systems, it will call a stored procedure on the other system to create the record there as well. I believe the relevant information will be passed via parameters to the stored procedure (not by querying the data in the first system). The ID number created on the second system gets passed back to the first system via an output parameter.
A concern was raised about whether something like this might cause "rev-locking". Similar issues were raised on a different interface, but that interface used a linked table between the two systems. The original design for that interface had a stored procedure initiated from the second system, and it was to update data via the linked table in the first system. But this caused some locking issues. So a different interface was written, that only used the linked table as read-only.
So the question is, do stored procedure calls between linked databases have the same issues as updates directly to linked tables? And a better question is, is there a document or white paper out there somewhere that describes the locking issues between linked databases, and presenting the "best practices" for this type of coding?
Any help is appreciated!
Christine Wolak
[email protected]

So the question is, do stored procedure calls between linked databases have the same issues as updates directly to linked tables? I'm not aware of any issues with updates across databases. can you post a more detail version of what exact issues did you encounter when updating tables across database using database links?
when you update a row in a table, from the same database or another one, a lock on that row will be placed for the duration of the transaction. Others will be able to read that row but not update it till the end of the local (or the remote) transaction.
What issue(s) did you encounter?

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How to create a stored procedure and use it in Crystal reports

Hi All,
Can anyone explain me how to create a stored procedure and use that stored procedure in Crystal reports. As I have few doubts in this process, It would be great if you can explain me with a small stored proc example.
Thanks in advance.

If you are using MSSQL SERVER then try creating a stored procedure like this
create proc Name
select * from Table
by executing this in sql query analyzer will create a stored procedure that returns all the data from Table
here is the syntax to create SP
Syntax
CREATE PROC [ EDURE ] procedure_name [ ; number ]
    [ { @parameter data_type }
        [ VARYING ] [ = default ] [ OUTPUT ]
    ] [ ,...n ]
[ WITH
    { RECOMPILE | ENCRYPTION | RECOMPILE , ENCRYPTION } ]
[ FOR REPLICATION ]
AS sql_statement [ ...n ]
Now Create new report and create new connection to your database and select stored procedure and add it to the report that shows all the columns and you can place the required fields in the report and refresh the report.
Regards,
Raghavendra
Edited by: Raghavendra Gadhamsetty on Jun 11, 2009 1:45 AM

How to handle Stored Procedure and Views

Dear All
While dealing with Oracle database related scenario. I came across Stored Procedures and Views. Which are complex in nature. Using SAP XI how we can handle them ?
Is JDBC adaptor is capable of that.? Can you help me Data type structure for oracle.
How max occur play important role in that. How to identify root and item level structure for oracle
I am dealing with stored procedures while inserting data. and using views i need to get data from oracle database.
What is the syntax of query we use to put while using JDBC adaptor?
Please help and provide bit detail information over this so that i can execute scenario
Thanks
Gaurav

1) jdbc:oracle:thin:@xxx.xxx.xxx.xxx:1521:sid
2)Occurence==> o,1, >1 , Unbounded
Occurrence=> ready to accept 0 / 1 / more than 1/ multiple record (for source) and how it will be passed to target.
http://help.sap.com/saphelp_erp2004/helpdata/en/b6/0b733cb7d61952e10000000a11405a/frameset.htm
3)
<StatementName5>
<storedProcedureName action= EXECUTE>
<table>realStoredProcedureeName</table>
<param1 [isInput=true] [isOutput=true] type=SQLDatatype>val1</param1>
</storedProcedureName >
</StatementName5>
refer
http://help.sap.com/saphelp_nw04/helpdata/en/22/b4d13b633f7748b4d34f3191529946/frameset.htm
http://help.sap.com/saphelp_nw04/helpdata/en/2e/96fd3f2d14e869e10000000a155106/frameset.htm

Java stored procedures and triggers in lite

Hi
We are using java stored procedures and java triggers in our application for oracle lite database 5.1.
We would like to know whether these procedures and triggers are uploaded or associated with tables or not because triggers are not being fired for the tables.
The question is - how to find the uploaded procedures and triggers in system tables.
We dont find any tables like (all_objects, user_objects) for this in oracle lite system catalogs given in the documentation.
thanks in advance
yugandhar

I don't have much experience with Lite, but I'm running 9i Personal Edition. Any information about triggers can be found in the "ALL_TRIGGERS" view. You will want to filter out any rows where OWNER = 'SYS' unless you created your triggers as SYS. As for procedures and functions, you can see what you have created in the "ALL_OBJECTS" view where OBJECT_TYPE = 'PROCEDURE' or 'FUNCTION', once again filtering out rows where OWNER = 'SYS'. To see the code of any procedure or function, select substr(text,1,80) from ALL_SOURCE where NAME = 'function name' ORDER BY LINE.
Hope this helps!

Oracle stored Procedure and Packages in CR4E

Hi,
I want to use Stored Procedure in CR4E. I don't know how to use Stored Procedures and packages in Crystal Reports for Eclipse. In the data source explorer I can only see the Tables, Views and Stored Procedures but not packages from my Schema and when I can only drag & drop the Tables and Views into the Field Explorer, I can't drag & Drop the Stored Procedures.
I managed to attached the stored procedure from CR studio. I opened the report in CR4E and I can see the stored procedure and can preview the data. When I try to run the report and override the datasource, it throws oracle error saying "ORA-01008: Not all variables bound". When I tried to use the option
DBOptions._doNotVerifyDB
while replacing connection I get the this error
java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Boolean
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Please advice if Stored procedures and packages are supported in CR4E ?

Hi, Jack76,
According to the [CR4E Release Notes|http://help.sap.com/businessobject/product_guides/cr4E/en/cr4e_relnotes_en.pdf] (available from the [CR4E Download page|http://www.businessobjects.com/campaigns/forms/downloads/crystal/eclipse/datasave.asp]), stored procedures are supported, as long as they don't use parameters that need null values.
I don't see any references to packages.
Bryan

Diif between Stored procedure and function

HI
I want all the differences between Stored procedure and function.
Even the basic diff is Procedure does not return any value and Function must be...
Thansk In advance...

1) Functions are used for computations where as procedures can be used for performing business logic That's an opinion on usage not an actual difference.
3) You can have DML(insert,update, delete) statements in a function. But, you can not call such a function in a SQL query.Not true. As User defind functons limitations we can use a function that issues DML in a SELECT statement, if it uses the PRAGMA AUTONOMOUS_TRANSACTION.
4) Function parameters are always IN, no OUT is possibleEasily refutable...
SQL> CREATE OR REPLACE FUNCTION my_f (p OUT NUMBER) RETURN DATE
2 AS
3 BEGIN
4     p := to_number(to_char(sysdate, 'DD'));
5     RETURN sysdate;
6 END;
7 /
Function created.
SQL> var x number
SQL> var d varchar2(18)
SQL> exec :d := my_f(:x)
PL/SQL procedure successfully completed.
SQL> print d
D
18-NOV-05
SQL> print x
         X
        18
SQL>
Stored Procedure :supports deffered name resoultion Example while writing a stored procedure that uses table named tabl1 and tabl2
etc..but actually not exists in database is allowed only in during creationNot sure what this one is about...
SQL> CREATE PROCEDURE my_p AS
2      n NUMBER;
3 BEGIN
4     SELECT count(*) INTO n
5     FROM tab1;
6 END;
7 /
Warning: Procedure created with compilation errors.
SQL> sho err
Errors for PROCEDURE MY_P:
LINE/COL ERROR
4/4      PL/SQL: SQL Statement ignored
5/9      PL/SQL: ORA-00942: table or view does not exist
SQL>
7) A procedure may modifiy an object where a function can only return a value.An ounce of test is worth sixteen tons of assertion...
SQL> CREATE OR REPLACE FUNCTION my_f2 RETURN VARCHAR2
2 AS
3 BEGIN
4       EXECUTE IMMEDIATE 'CREATE TABLE what_ever (col1 number)';
5      RETURN 'OK!';
6 END;
7 /
Function created.
SQL> exec :d := my_f2
PL/SQL procedure successfully completed.
SQL> desc what_ever
Name                                      Null?    Type
COL1                                               NUMBER
SQL> I think there are only two differences between a procedure and a function.
(1) A function must return a value
(2) because of (1) we can use functions in SQL statements.
There are some minor difference in allowable syntax but they are to do withj RETURN values.
Cheers, APC

How to get a list of values used in the WHERE filter of stored procedures and functions in SQL Server

How can I get a list of values (one or more) used in the WHERE filter of stored procedures and functions in SQL Server?
How can get a list of values as shown (highlighted) in the sample stored procedure below?
ALTER PROC [dbo].[sp_LoanInfo_Data_Extract] AS
SELECT   [LOAN_ACCT].PROD_DT,
              [LOAN_ACCT].ACCT_NBR,
              [LOAN_NOTE2].OFCR_CD,
              [LOAN_NOTE1].CURR_PRIN_BAL_AMT,
              [LOAN_NOTE2].BR_NBR,
INTO #Table1
FROM
                dbo.[LOAN_NOTE1],
                dbo.[LOAN_NOTE2],
                dbo.[LOAN_ACCT]
WHERE
                [LOAN_ACCT].PROD_DT = [LOAN_NOTE1].PROD_DT
                and
                [LOAN_ACCT].ACCT_NBR = [LOAN_NOTE1].ACCT_NBR
                and
                [LOAN_NOTE1].PROD_DT = [LOAN_NOTE2].PROD_DT
                and
                [LOAN_NOTE1].MSTR_ACCT_NBR = [LOAN_NOTE2].MSTR_ACCT_NBR
                and
                [LOAN_ACCT].PROD_DT = '2015-03-10'
                and
                [LOAN_ACCT].ACCT_STAT_CD IN
('A','D')
                and
                [LOAN_NOTE2].LOAN_STAT_CD IN
('J','Z')
Lenfinkel

Hi LenFinkel,
May I know what is purpose of this requirement, as olaf said,you may parse the T-SQL code (or the execution plan), which is not that easy.
I have noticed that the condition values in your Stored Procedure(SP) are hard coded and among them there is a date values, I believe some day you may have to alter the SP when the date expires. So why not declare 3 parameters of the SP instead hard coding?
For multiple values paramter you can use a
table-valued parameter. Then there's no problem getting the values.
If you could elaborate your purpose, we may help to find better workaround.
Eric Zhang
TechNet Community Support

How to create stored procedures and use those in Crystal reports

Hi All,
Can anyone explain me how to create a stored procedure and use that stored procedure in Crystal reports. As I have few doubts in this process, It would be great if you can explain me with a small stored proc example.
Thanks in advance.

Hello,
There is a document explainining how to use Oracle stored proc with Crystal reports.
Check at:
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/1084c536-711e-2b10-e48a-924a60745253
It is for older version but it should work and you can refer to it to get general idea how to start with it. It has a sample oracle stored proc and how to connect it from Crystal Reports.

Dynamically calling stored procedure and getting result set c++

Hello,
I am trying to write some c++ code that will dynamically bind values to a stored procedure and excute the procedure and get back a resultset. The problem I am running into is how to get back the resultset. Any help or example would be highly appreciated.

int main(int argc, char* argv[])
OCIError* pOciError;
char* pConnectChar = "dbname";
char* pUsernameChar = "scott";
char* pPasswordChar = "tiger";
int answer;
OCIStmt* pOciStatement;
char* sqlCharArray = "BEGIN :success := sp_ListEmp; END;";
int id;
char ename[40];
OCIEnv* g_pOciEnvironment = NULL;
OCIServer* g_pOciServer = NULL;
OCISession* g_pOciSession = NULL;
OCISvcCtx* g_pOciServiceContext = NULL;
sb2* pIndicator=0;
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answer = OCIInitialize(OCI_THREADED, NULL, NULL, NULL, NULL);
answer = OCIEnvInit(&g_pOciEnvironment, OCI_DEFAULT, 0, NULL);
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OCI_ATTR_USERNAME, pOciError);
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OCI_ATTR_PASSWORD, pOciError);
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answer = OCIAttrSet(g_pOciServiceContext, OCI_HTYPE_SVCCTX, g_pOciSession, 0, OCI_ATTR_SESSION, pOciError);
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answer = OCIStmtPrepare(pOciStatement, pOciError, (unsigned char *)sqlCharArray, strlen(sqlCharArray),
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answer = OCIBindByPos(pOciStatement,&pBind, pOciError, 1, &cursor, 0,SQLT_RSET,
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answer = OCIStmtExecute(g_pOciServiceContext, pOciStatement, pOciError, 1, 0, NULL, NULL,
OCI_COMMIT_ON_SUCCESS);
answer = OCIDefineByPos(cursor,&pOciDefine, pOciError,2,&id,sizeof(int),
SQLT_INT,pIndicator, 0, 0,OCI_DEFAULT);
answer = OCIDefineByPos(cursor,&pOciDefine2, pOciError,1,ename,40,
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if (answer == 0)
while ((answer = OCIStmtFetch(cursor,pOciError, 1,OCI_FETCH_NEXT,OCI_DEFAULT)) == 0)
printf("fetched id %d and name %s\n",id,ename);
answer = OCIHandleFree(pOciError, OCI_HTYPE_ERROR);
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Stored procedure and peoplecode in app engine

Hey all,
i want to call a stored procedure in peoplecode using sqlexec. i guess the following syntax is correct.
sqlexec("exec sp_name");
my question is
will the peoplecode wait until the stored procedure completes?
or
will it just send the command to database to execute the stored procedure and continue executing the next statements after the sql exec.
Please let me know if i am not explain better and need to give an example.
Please help me.
thank you.

"...will the peoplecode wait until the stored procedure completes"
Yes.
Nicolas.

Java stored procedures and referencing classes

We are referencing to some classes/libraries which are not present in the database. In normal java world, you specify the libraries/classes needed to run your piece of code in the CLASSPATH and that forms part of your complete code.
Can java stored procedures in the database refer to libraries or class files it requires on the file system rather than the database? Is it possible to make this happen?
Thanks

pshiva,
Posting the same question to multiple forums usually doesn't increase your chances of getting an answer, and it just frustrates those wishing to answer you with the result being that any future questions you post may have less chance of being answered -- because of your uncourteous, initial behaviour.
I have answered your other thread:
java stored procedures and referencing classes
In my opinion, that forum (the Database JVM forum) is the most appropriate for your question.
Good Luck,
Avi.

Java Stored Procedures and Triggers

I want to to use Java stored procedures and triggers within the Oracle 11g XE
So please , someone can help me because i tried but it didn't work
I don't know where is the problem
Thanks !!

WRONG FORUM!
Welcome to the forum but this forum is for Java JDBC questions and issues. Your question should be posted in the SQL and PL/SQL forum
PL/SQL
>
I want to to use Java stored procedures and triggers within the Oracle 11g XE
So please , someone can help me because i tried but it didn't work
I don't know where is the problem
>
Mark this question ANSWERED and repost the question in the other forum
Before you post review the Oracle Database Java Developer's Guide - it shows how to create Java stored procedures and has example code
http://docs.oracle.com/cd/B28359_01/java.111/b31225/chfive.htm
And in the new post don't just say "I tried but it didn't work". You need to post the code that you tried and what you mean by "didn't work".
If you got any exceptions or errors you need to post a copy of the exact message or error that you are getting.

Can i use Stored procedures and triggers with SDK

hi all
How to use the stored procedure and Triggers with SDK, can i get a sample code
Regards
Salah

Hi, Salah.
Use "Exec" in your query to run procedures.
SAPbobsCOM.Recordset oRS;
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Triggers are not supported in SDK.
Regards,
Aleksey

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Hi all.
I started developing some useful (at least for me) Java Package, and I'm wondering if I'm doing the right thing.
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I'm a little stuck in this....
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Thanks in advance for Your help.
Best Regards
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Do not create anything in the System schema. Create the package and procedure in one schema and create a public synonym that the other schemas can use to access it.
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Administering Stored Procedures and Packages

I've read about WRAP utility but I don't know exactly what's it about. Here you are what ýI've read:ý
The code used to create the procedure ,package ,or function is available in the dictionary ýviews DBA_Source ,All_Source,and user_source except when you create them with the ýWRAP utility .the WRAP utility generates encrypted code, which only the Oracle server ýcan interpret .ý
does any one have any idea .
Thanks in advance

Generally, one uses the WRAP utility when
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Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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