I am trying to insert multiple rows using array bind feature.
The following is working fine & inserting rows as expected.
char values[3][2] = { "1", "2", "3" };
ub2 lenp[3];
lenp[0] = lenp[1] = lenp[2] = 2;
[Code]...
OCIStmtExecute() is failing with the following error
Error - ORA-01480: trailing null missing from STR bind value
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;
comp = (struct common*) calloc(rowcount, sizeof(struct common));
comp_i = (struct common_ind*) calloc(rowcount, sizeof(struct common_ind));
exec sql at db1 select * into :comp indicator :comp_i from tab1;
Error i get :
Stop Error: -2112
Stop Error: -1012
Stop Error: -1012
can i have some real time code piece for bind variables steps and obndrv(...)
View 1 Replies View Relatedsample 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..
View 6 Replies View RelatedI 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.
I created a table and some type definitions in oracle 10.2.0.3 DB as follows. There is also a procedure that I defined and is shown below.
SQL> create table test_proc
(
test_name varchar2(10),
test_ver number (3,3),
active_flag number(2)
);
Table created.
SQL> select * from test_proc;
TEST_NAME TEST_VER ACTIVE_FLAG
---------- ---------- -----------
AFP 1.5 2
PSA 11.89 0
EHIV 99.5 3
aHAVM 1.45 9
[code]....
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);
[code]....
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 am receiving the following error while inserting records.
"Oracle Error:ORA-12899: value too large for column "MFG_ADMIN"."GAGE_RESULTS"."COMP
whereas I am checking the length of all values before inserting and am sure that none of them are larger than column lengths.I did some research and found this error might be due to character set.
select * from nls_database_parameters where parameter like '%CHARACTERSET';
PARAMETER VALUE
------------------------------
----------------------------------------------------------------------------------------------------
--------------------
NLS_CHARACTERSET UTF8
NLS_NCHAR_CHARACTERSET UTF8
how can this be related to my problem or if something else is causing this error.
I have an array of C structs say
struct S
{
int a, long b, double c;
};
S s[100];
Further suppose I have an Oracle table T like this:
create table T
(
a number(10),
b number(10),
c float
);
I want to bulk insert all 100 instances of S from a client application into T. I've seen code that does this for *one* field or column. The code defines a stored procedure which accepts a single argument which is a TABLE and then does a FORALL ... insert. The client application passes in the array of data.
What I need is N columns. In my example above struct S has N=3 fields which conform to the N=3 columns in T. In reality my N will be 50+. I am trying to avoid creating stored procedures which will take the 50 or so arguments it will eventually need.
So does my stored procedure need to accept N TABLE arguments? Or can I cajole OCI/OTL/ODBC and PL/SQL so that the stored procedure can take an array of rows which the type of row conforms to T by defining a record or something? That is, do I need:
Option 1: // declares one type and one argument each for N cols
create or replace procedure insert_S(
a_array IN A_TABLE, -- type A_TABLE is TABLE of number;
b_array IN B_TABLE, -- type B_TABLE is TABLE of number;
c_array IN C_TABLE) -- type C_TABLE is ...
begin ... end
Option 2: // this somehow accepts an array compatible with T
// if I could get a OCI/OCCI/OTL/ODBC application
// to send this data, this procedure would have
// only one argument
create or replace procedure insert_S(
row_array IN ?????????? type -- some sort of array of rows
)
begin ... end
Or should I pass the whole memory chunk of data in as an image or varchar array -- basically an opaque block of data -- and then internally decypher/decode the memory block inside the stored procedure as discussed on [URL].
best way to pass an array of N C-structs of M fields to a stored procedure for insertion into a table with M compatible columns? One TABLE per column? with an array of a custom type compatible with a row in T? As glob of data? Another option is to populate some host variables ... but, again, I'd need N host variables.
We are currently using OCI to connect to Oracle DB using c language. Each process has its own dedicated Connection and Env handle, session handle ...
Right now we decided to use Connection Pooling. In the documentation , Connection pooling examples were using multi-threaded environment. But in our case its multi-process system and we cant modify products architecture to multi-thread.
I would like to know how we can use Connection Pooling on multiple processes.
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.
How to resolve this issue?
How to fetch all the rows in a cursor in local variables(host variables) in PRO C . /*For x in cur is not working....*/
View 2 Replies View RelatedHow to hold the multiple rows values using array? And I have to pass this values to some other procedure.
Ex: SQL> select ename from emp;
ENAME
----------------------
Vetrivel
Dr.Venkat
Vinoth
Sudhakar
Sivaganesh
Senthil
While running by run script to perform few DMLs - im getting the ORA-06502 - PL/SQL:numeric or value error: host bind array too small.i ve put the server output off and then ON to clear the cache.Still same issue.
View 6 Replies View RelatedIs it possible to connect with Oracle using C?
View 2 Replies View RelatedI 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:
extern "C" DLLEXPORT
void version(OCIExtProcContext* context, OCILobLocator **out, sb4 *ind_out){
OCIEnv* envh;
OCISvcCtx* svch;
OCIError* errh;
OCIExtProcGetEnv (context, &envh, &svch, &errh);
std::string versioninfo = "104";
oraub8 maxChar = 10;
[code]...
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.
My 10g pro*c application works perfectly, recently I upgraded it to 11g, but it keep crashing, why?
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View 6 Replies View RelatedI 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
like this
my_procedure( q=>a1 , b=>'abc )
My program needs to connect to two databases and make operations in both databases:
Quote:connect to db1;
connect to db2;
select from table in db1;
update table in db2;
i would like to know whether it's possible, and how to do it ? how to specify for each query the database connection to use?
note that I can't use dblinks as i don't have enough access rights and privileges on neither of the databases.
How to report an Oracle bug? Is there webpage or email?
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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?
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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]...
I found this thread, and recently i want to embedded oci in pro*c for distributed transaction reason.
can pro*c deal with distributed transaction? i want to use mts in pro*c .