Precompilers, OCI & OCCI :: How To Pass Array Of Strings To And Return Table Set From Proc
Jan 24, 2011
I have to write a PL/SQL procedure, which is supposed to take an array of strings as input. This array will have simple strings as elements, like
'000887S','000780S'.
Now I have a query in the procedure, which will return a row, for each of the array elements. For example:
SELECT
su.EMPLOYEE_ID,su.FIRST_NAME,
su.LAST_NAME
FROM
USERS su,
[code]......
In the place of the '?' in the above query, the array elements have to be passed. So we will get one row from the above query for each array element.
Now we either have to loop through the array elements to fetch the result set for the above query for each array element, or we can use some other method too. Our objective is to collect all the rows of the above query for each array element as a table data and this procedure has to return this table set.
what will be the best way to pass such a set of data to the proc and best way for the proc to return this result set. Like we can use arrays, table type data,ref cursors, etc.
sample code in OCI in C for receiving records of table in array of structure? Or dynamically storing the result-set in an array..using array of pointers to structure..
i need to compile a proc program, say prog.pc.have oracle 10g in my system. Since i am new to proc programming, me on the steps to compile the proc program in oracle proc compiler.
I am using dynamic Pl/SQL with ProC and having problems with cursor. I've to execute stored procedure dynamically and get the result of select list into the cursor. The EXECUTE command is working fine but the FETCH gets failed with error "ORA-01002: fetch out of sequence". I've read that cursor variable can not be used with dynamic SQL.
Stored Procedure: ------------------ ROCEDURE open_mod_cur ( curs IN OUT cur_type, module_id IN varchar2)
I am running a pro*c its working fine but my connection gets disconnect to my db server so i want to continue my proc if connection between my machine & server reestablish again weather it starts from start or from where it was stooped because of connection break
I Want to declare some host variables with global scope. Like this C variable:
MyFile.h ... char str_var[20]; ...
But i can't put SQL sentences in a include file. And if i do this:
MyFile.pc ... EXEC SQL BEGIN DECLARE SECTION; char str_var_h[20]; EXEC SQL END DECLARE SECTION; ... ... I can't see this variable from others sources, although I declare it like 'extern'.
Now from Pro*C function I want to pass a similar array of structure to this procedure and return it via the out parameter of the procedure back to Pro*C. How do I do it?
I am using the attached program but its giving me compiler error as follows..
Error at line 31, column 1 in file sample.pc proc_modify_tdefs (:in_tdefs,:out_tdefs); 1 PLS-S-00306, wrong number or types of arguments in call to 'PROC_MODIFY_TDEFS' Error at line 31, column 1 in file sample.pc proc_modify_tdefs (:in_tdefs,:out_tdefs);
I'm dealing with an ORA-1000 error in a Pro*C application where all the cursors are correctly closed (or so it seems to me).
Here is the code for a simple program which reproduces the problem:
Each cursor is opened in a PL/SQL package:
CREATE OR REPLACE PACKAGE emp_demo_pkg AS TYPE emp_cur_type IS REF CURSOR; PROCEDURE open_cur(curs IN OUT emp_cur_type, dept_num IN NUMBER); END emp_demo_pkg;
[Code]....
While testing the initialization parameter open_cursors is set to 50.
It's my understanding that Oracle doesn't close the cursors until it needs the space for another cursor, which in my test case seems to happen when I enter a value of 50 or bigger for "number of loops". To see how oracle is reusing the cursors, while the test program is running I run SQL*Plus and query v$sesstat for the session that's running the test with the following sentence:
select name, value from v$sesstat s, v$statname n where s.statistic# = n.statistic# and sid = 7 and name like '%cursor%';
Even before I enter a value for number of loops I can see that the session opened 4 cursors and closed 2 of them:
NAME VALUE ---------------------------------------------------------------- ---------- opened cursors cumulative 4 opened cursors current 2
Entering a value of 5 for number of loops yields
NAME VALUE ---------------------------------------------------------------- ---------- opened cursors cumulative 11 <----- 7+ opened cursors current 8 <----- 6+
With a value of 30
NAME VALUE ---------------------------------------------------------------- ---------- opened cursors cumulative 36 <----- 25+ (apparently, Oracle reused at least 5 cursors) opened cursors current 33 <----- 25+
With a value of 47
NAME VALUE ---------------------------------------------------------------- ---------- opened cursors cumulative 53 <----- 17+ opened cursors current 50 <----- 17+
Now I reached the upper limit set by the initialization parameter open_cursors.
Entering a value of 48, I get the ORA-1000 error.
ORA-01000: maximum open cursors exceeded ORA-06512: at "SCOTT.EMP_DEMO
Since I open and close the cursor in the same loop iteration, I expect to find in every iterarion 1 explicit cursor and a number of implicit cursors (the PL/SQL call along with the so-called recursive cursors), but I don't expect the sum of all of them to be greater than 50. If my understanding is correct Oracle should be reusing the 50 cursors previously marked as "closeable", not raising the ORA-1000 error.
I want to insert XML data into my ( Oracle 11G Release 1 ) XMLType table using OCCI. I'm getting
ORA-01461: can bind a LONG value only for insert into a LONG column
My XML data size is around 1.5 to 2MB. I have also tried using setMaxParamSize before calling the setString method. But, still I'm getting the same exception.
I am working on Pro*C and i have a requirement where i need to select all the rows from a table into a c - structure variable. Since i get to know the no of rows in the table which is getting selected only at run time, i need to create a pointer variable to the structure and i'll allocate the size to it based on the count of rows in the table using malloc or calloc.I tried allocating memory using calloc and it does not show any error. But when i when the exec select statement run it shows an error.
Statements i have used: struct common *comp; struct common_ind *comp_i;
I had never done this before, basically I need to get the result of the SQL query which had three columns and pass into thesend _mail proc, should I build a variable to hold the 3 value and send mail from it?
I am passing a string from vb.net through oracle store procedure. String consists of varchar values for eg '123456;I|N,2424424;O|A'. But how can i call these string values into array using oracle stored procedure? After getting these values into array , i wanted to loop through these values.
For Nested table i have done it in follwing way? This is pl/sql stored procedure.
CREATE or REPLACE PROCEDURE TEST( activationStartDate IN DATE, activationEndDate IN DATE,
[Code]....
My JavaCode is
--First getConnection --prepare sql string : sql = "{ Call Test(?,?,?,?,?) } "; --Use prepareCall function on Connection object and passed this sql string and retrived CallableStatement class object.
[Code].....
Then what if i want to select more than one column from EMPLOYEE and pass to my javaCode......How my Pl/Sql will look like?........ I know how to retrieve all the coloumns of resultset in java.
I want to ask how pl/sql code will look like, i know the retrieveal process in java.
List<List> result = new ArrayList()<List>; List col = new ArrayList(); ResultSet rs = (ResultSet)stmt.getObject(5); ResultSetMetaData rsMetaData = rs.getMetaData();
I am trying to give back data from a stored procedure written in C. I registered the functions as follows:create or replace procedure version(versioninfo OUT clob) as external name "version" library myLib language c with context parameters (context, versioninfo, versioninfo INDICATOR SB4); It compiles fine. The function being called look like this:
If I execute the procedure with SQLDeveloper by pressing "play" it is getting executed but there is no result. If I try to execute it from an anonymous block it results in ORA-22275 instead of doing anything.
declare res clob; begin -- the following doesn't work much --dbms_lob.createtemporary(res,true); version(res); dbms_output.put_line(res); end;
Actually I have to questions: 1.) Why does Oracle give me the error? In my opinion all requirements mentioned by the error description are met. 2.) Why is there no output when executing the function via SQL Developer? Is the usage of OCILobWrite wrong?
I am trying to describe an STP in a package, but it gives me an error.
e.g. In package ABC suppose there is an STP XYZ, I am trying to describe ABC.XYZ function but it gives me an error code 4043 and error message object XYZ.ABC does not exist.
in my oci applications,if i get a column of number that is in the scope of int,i can use value = *(int *)field.data; get the value,but if the column size is larger than 10,the code can't be available,how can i get the value.
I am trying to call procedure from PRO C Procedure has many parameters and I do not need to put all of them when I call procedure. Is there way to make the same way as in PL/SQL
My OS is Linux and I installed Oracle 10.2. Everything is fine.I can use sqlplus, exp, imp etc with no problem.Now I have created another linux user test in /home/test. I unzipped basic-10.2xxxxxx.zip (/home/test/instantclient_10_2) and exported LD_LIBRARY_PATH.I guess I have installed instant client in this way.
My testOra.cpp:
#include <occi.h> int main() { return 0; }
This test.cpp would not compile. It cannot find occi.
I declare a cursor for a table with 8000 records, when I fetch the cursor this message appear ORA-03113: end-of-file on communication channels when the fetch reach the 6500 element, What is the problem here?. All data are ok, not null fields.
other problem
How I can reuse a cursor, I declare a cursor for a table where code_part = 300, then I fetch all elements until end cursor, then I close the cursor, Then I declare the same cursor again for the same table where code_part = 359, but it is not successful, when I tried to fetch the cursor again the cobol program show me the last record for the first code, How I can restart the cursor or delete it or freed the cursor position?
I am inserting empno in a table1 and updating another table2 using table1 empno and getting ora-01427 error. I want to print empno for whis this error is coming. How to print that value?
how to integrate SQLnet & c and I'm quite losted at the moment.
Searching with google gives some random stuff, which does seems to be irrelevant.some oracle db somewhere and need for good way to use that remote db (one solution seems to be using SQLnet).
If doing an insert into DATE type fields like below... how do I employ null indicator values with the TO_DATE sql to cope with NULL values for the End Date? I can test the NULLness of the pServiceRecord->itemTo value and set the indicator ind_dbToDate to -1 but I don't know how to incorporate this with the to_date syntax (if I can)?
EXEC SQL BEGIN DECLARE SECTION; char dbFromDate[MAX_DATE_LEN]; char dbToDate[MAX_DATE_LEN]; short ind_dbToDate; [code]...
