Linux oracle9i connectivity using Pro C/C++

Hi,
Can anyone plz help me out in connecting C++ with oracle9i under Linux(Red hat linux)??? A code snippet would be appreciated.. Thanks in advance..
Ranjith

My answer is only for 1. problem (about ORA-01458)
I think that you use declaration for cursor C0 with a varchar
variable before you ininitialize length (member .len of varchar
structure) of this variable.
It's famous that many errors come from uninitialized varchar
variables in Pro*C.

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Newbe trying to connect using Pro*C/C++

I'm just trying to get Pro*C/C++ to work using VC++ on an NT platform (This is my first shot at Pro*C/C++).
I can get the code to pre-compile , compile, and link but when I attempt to connect to the database I get an Access Violation in SQLLIB80.dll .
Results with the lines below - Does the first sqlcxt parameter make any sense!?
EXPANDED CODE:
username.len = (unsigned short)strlen(strcpy((char *) username.arr, "testuser"));
password.len = (unsigned short)strlen(strcpy((char *)password.arr, "testpwd"));
dsname.len = (unsigned short)strlen(strcpy((char *)dsname.arr, "mercury"));
// Register sql_error() as the error handler
/* EXEC SQL WHENEVER SQLERROR DO sql_error("ORACLE error:"); */
/* EXEC SQL CONNECT :username IDENTIFIED BY :password USING :dsname; */
struct sqlexd sqlstm;
sqlstm.sqlvsn = 10;
sqlstm.arrsiz = 4;
sqlstm.sqladtp = &sqladt;
sqlstm.sqltdsp = &sqltds;
sqlstm.iters = (unsigned int )10;
sqlstm.offset = (unsigned int )5;
sqlstm.cud = sqlcud0;
sqlstm.sqlest = (unsigned char *)&sqlca;
sqlstm.sqlety = (unsigned short)256;
sqlstm.occurs = (unsigned int )0;
sqlstm.sqhstv[0] = ( void *)&username;
sqlstm.sqhstl[0] = (unsigned int )22;
sqlstm.sqhsts[0] = ( int )22;
sqlstm.sqindv[0] = ( void *)0;
sqlstm.sqinds[0] = ( int )0;
sqlstm.sqharm[0] = (unsigned int )0;
sqlstm.sqadto[0] = (unsigned short )0;
sqlstm.sqtdso[0] = (unsigned short )0;
sqlstm.sqhstv[1] = ( void *)&password;
sqlstm.sqhstl[1] = (unsigned int )42;
sqlstm.sqhsts[1] = ( int )42;
sqlstm.sqindv[1] = ( void *)0;
sqlstm.sqinds[1] = ( int )0;
sqlstm.sqharm[1] = (unsigned int )0;
sqlstm.sqadto[1] = (unsigned short )0;
sqlstm.sqtdso[1] = (unsigned short )0;
sqlstm.sqhstv[2] = ( void *)&dsname;
sqlstm.sqhstl[2] = (unsigned int )42;
sqlstm.sqhsts[2] = ( int )42;
sqlstm.sqindv[2] = ( void *)0;
sqlstm.sqinds[2] = ( int )0;
sqlstm.sqharm[2] = (unsigned int )0;
sqlstm.sqadto[2] = (unsigned short )0;
sqlstm.sqtdso[2] = (unsigned short )0;
sqlstm.sqphsv = sqlstm.sqhstv;
sqlstm.sqphsl = sqlstm.sqhstl;
sqlstm.sqphss = sqlstm.sqhsts;
sqlstm.sqpind = sqlstm.sqindv;
sqlstm.sqpins = sqlstm.sqinds;
sqlstm.sqparm = sqlstm.sqharm;
sqlstm.sqparc = sqlstm.sqharc;
sqlstm.sqpadto = sqlstm.sqadto;
sqlstm.sqptdso = sqlstm.sqtdso;
sqlcxt((void **)0, &sqlctx, &sqlstm, &sqlfpn);

Can't help you there, I'm afraid, and I don't do development since many years back so I'm pretty useless in that area ;-)
However, since the Net layers are beneath OCI in the stack, I would think that if these certificates work at all with Oracle (via some other client, like SQL*Plus), it should work with all types of apps.
But, I believe the Pro* stuff is not all that up to date, so if connectivity requires 10g features, there's a small risk of incompatibility issues.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14225/ch7progrunicode.htm#i1005974
http://download.oracle.com/docs/cd/B19306_01/network.102/b14212/architecture.htm#i1040997

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My macbook pro wont connect to the internet using a cable, but connects using wifi fine. I use wifi at home but sometimes need to use my laptop at work and connect using a cable but it says i'm not connected to the internet?

Can you open a terminal and invoke the following commands:
ping -c 10 localhost
and
ping -c 10 google.com
You should normally get something like:
PING google.com (74.125.224.103): 56 data bytes
64 bytes from 74.125.224.103: icmp_seq=0 ttl=55 time=19.053 ms
64 bytes from 74.125.224.103: icmp_seq=1 ttl=55 time=37.692 ms
64 bytes from 74.125.224.103: icmp_seq=2 ttl=55 time=46.988 ms
64 bytes from 74.125.224.103: icmp_seq=3 ttl=55 time=33.466 ms
64 bytes from 74.125.224.103: icmp_seq=4 ttl=55 time=28.940 ms
64 bytes from 74.125.224.103: icmp_seq=5 ttl=55 time=58.070 ms
64 bytes from 74.125.224.103: icmp_seq=6 ttl=55 time=33.335 ms
64 bytes from 74.125.224.103: icmp_seq=7 ttl=55 time=33.361 ms
64 bytes from 74.125.224.103: icmp_seq=8 ttl=55 time=36.099 ms
64 bytes from 74.125.224.103: icmp_seq=9 ttl=55 time=41.111 ms
--- google.com ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 19.053/36.811/58.070/9.939 ms

Using Pro*C on Linux Oracle 8.1.6.0 on RH 6.2

Whe have some problems using Pro*C:
the program runs ok on all Oracle versions, including Oracle 8.1.6.0 on DEC OSF, but various sql errors are encountered on Linux Red Hat 6.2:
1) "ORA-01458: invalid length inside variable character string" for this code:
EXEC SQL BEGIN DECLARE SECTION;
varchar I_LANGLB [4];
short O_NOLBLB ;
varchar O_LIBELB [26];
EXEC SQL END DECLARE SECTION;
EXEC SQL INCLUDE SQLCA.H;
EXEC SQL WHENEVER SQLERROR GO TO MAJ_RESULT;
EXEC SQL WHENEVER NOT FOUND CONTINUE;
EXEC SQL DECLARE C0 CURSOR FOR
SELECT LBL.NOLBLB, LBL.LIBELB
FROM LBL
WHERE LBL.EDITLB = 'MON' AND LBL.LANGLB = :I_LANGLB;
strcpy (I_LANGLB.arr, "fra");
I_LANGLB.len = 3;
EXEC SQL OPEN C0;
for ( ; ; )
EXEC SQL WHENEVER NOT FOUND DO break;
EXEC SQL FETCH C0 INTO :O_NOLBLB, :O_LIBELB;
EXEC SQL CLOSE C0;
2) with Dynamic Sql: "ORA-01007: variable not in select list"
SELECT
nvl(MODEME, ''),
nvl(NBANME, 0),
nvl(BASEME, '0'),
nvl(PRORME,'0'),
nvl(EVALME, '0'),
nvl(DECOME, '0') ,
nvl(CDDAME, '0'),
nvl(CDMIME, '0'),
nvl(TXMIME, 0),
nvl(CDMAME, '0'),
nvl(TXMAME, 0),
nvl(CDTXME, '0'),
nvl(CDSUME, '0'),
nvl(TXSUME, 0),
nvl(DUMIME, 0),
nvl(MTVNME, 0),
nvl(NOANML, 0),
nvl(TAUXML, 0),
DESIME
FROM MET, LME
WHERE MODEME = MODEML
AND nvl(INLBME,'1')='1'
ORDER BY MODEME,NOANML
[ or
ORDER BY 1,17 ]
In both cases,
We use the following precompiling options:
include=/oracle/OraHome1/precomp/lib ireclen=132 oreclen=132 sqlcheck=syntax parse=partial select_error=no char_map=VARCHAR2 mode=ORACLE unsafe_null=yes
dbms=V8
Could someone help ?
Thanks ...

My answer is only for 1. problem (about ORA-01458)
I think that you use declaration for cursor C0 with a varchar
variable before you ininitialize length (member .len of varchar
structure) of this variable.
It's famous that many errors come from uninitialized varchar
variables in Pro*C.

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Can I use Boot Camp to install Linux on my MacBook Pro?

Welcome to the Apple Support Communities
Boot Camp wasn't designed to install Linux. Apart from that, the Boot Camp version included in OS X Mountain Lion will ask you to insert a Windows 7 or Windows 8 DVD in order to run Boot Camp, as far as I know.
Apple doesn't support Linux on Macs, but it works properly on Macs. There are a lot of how-to's in the Internet about the steps to install Linux and the different possibilities you have. Also, what distribution do you want to install on the computer? You should also consider the option to install Linux on a virtual machine

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Connecting Macbook Pro osx10.6.8 to flatscreen vis HDMI. Only suggestions I have seen is to use Mirror Image in sysPref>displays. I don't see any mention of mirror image in displays. Won't connect

I am asking the Moderator to move your post to the MacBook Pro forum, this is an iMac forum.
Good luck.

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What type of Fire Wire cable to use to connect MacBook Pro 2009 to tape-based Sony TRV720 camcorder

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Ciao.

Problem JDBC Connection using OCI Driver on Weblogic Portal on Linux

Hi Team,
I want a JDBC connection using OCI Driver in Weblogic Portal 8.1 sp4 on Linux. When I had tested using JDBC connection using Plain Java Code it is working. Also when I create the OCI Connection Weblogic Connection Pool it is working.
But My Requirement is to create the connection using Java Code in Portal Application
But When I create OCI connection in the code it is throwing NO SUITABLE DRIVER Found.
---------- Code in Plain Java Code ------------ Same code is used in Weblogic Portal Application --------------------------------
     public static void main(String[] args) throws Exception{
          Class.forName("oracle.jdbc.driver.OracleDriver");
          DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
          String url="jdbc:oracle:oci8:@TESTDB";
          Properties props = new Properties();
     props.put("user","scott");
     props.put("password","tiger");
          conn=DriverManager.getConnection(url,props);
When I am using the same code in Weblogic Portal and Deployed on Weblogic Portal Server 8.1 SP4 it is throwing following error.
-------------- Exception on Server Log --------------------
java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getConnection(Ljava.lang.String;Ljava.util.Properties;Ljava.lang.ClassLoader;)Ljava.sql.Connection;(Unknown Source)
at java.sql.DriverManager.getConnection(Ljava.lang.String;Ljava.util.Properties;)Ljava.sql.Connection;(Unknown Source)
My Environment is
LINUX
Weblogic 8.1 SP4
Oracle 9i Client on Same Machine
Oracle 10g Server on Different Machine
My Environment Variables on the Linux Server also set properly as following
PATH=/apps/pmaaum/ant/apache-ant-1.6.5/bin:.:/apps/beahomedev/jdk142_05/bin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/apps/oracle/ora9i/product/9.2.0/bin:/usr/local/bin:/bin:/usr/bin:/usr/X11R6/bin:/apps/oracle/ora9i/bin
LD_LIBRARY_PATH=/usr/lib:/apps/oracle/ora9i/product/9.2.0/lib:/apps/oracle/ora9i/product/9.2.0/lib32:/apps/oracle/ora9i/product/9.2.0/rdbms/lib:/usr/openwin/lib:/apps/oracle/ora9i/product/9.2.0/jdbc/lib
JAVA_HOME=/apps/beahomedev/jdk142_05
JDBC_LIB=/apps/oracle/ora9i/product/9.2.0/jdbc/lib
CLASSPATH=:.:/apps/beahomedev/jdk142_05/lib/rt.jar:/apps/oracle/ora9i/product/9.2.0/jdbc/lib/classes12.jar
Please help me, Let me know if you required anything.
Thanks in Advance
Vishnu
Edited by: vishnuk on Oct 23, 2009 4:07 AM
Edited by: vishnuk on Oct 23, 2009 4:10 AM

Hi Vishnu
Looks like a classloader issue. BEA class loader is very tricky. Any jar added manually in classpath, will end up loading only those classes. Any imports that we have in any of those classes do not get loaded. Anyhow, coming to your point, add classes12.jar inside your portal web project Web-Inf/lib folder and see if that helps. Usually thats where we put all the JARs for 8.1 SPxx applications. If this still breaks, then remove the jar from web-inf/lib folder and add under your portal app App-Inf/lib folder. First try with app-inf/lib folder having this jar. If not then with web-inf/lib. Basically web-inf is specific to that web app only. If you have a different app having this jdbc code, then put under app-inf/lib folder. Make sure that you remove the classes12.jar that you added in classpath either in env variable or in setdomainenv.cmd file.
When weblogic uses native OCI Drivers, it refers to jars at this location: ....\beawlp814\weblogic81\server\ext\jdbc\oracle\10g or 9g. Try using one of these jars and see if that works. Most of the times I used these jars only for oracle specific native drivers.
Word of caution. Try to use Connection Pool and a DataSource created in weblogic console for your jdbc code. This Datasource can still use the Oracle drivers that you want (instead of BEA Weblogic wrapper oci drivers) located in above location. Use JNDI Lookup and get Datasource and then connection. This is more recommended approach with many advantages then using DriverManager approach..
Goud

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Hi Mmm ive been told that installing linux on mac book pro retina 15 and even others and using it as my first sofware will make the mac heaqt up and burn from inside!!!!! true??????????

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[Generic Connectivity Using ODBC][C077] Could not find symbol 'SQLAllocConnect'
in dynamic library
[C079] Failed to load dynamic library '/opt/odbc/lib/libodbc.so'
i use command elfdump look for SQLAllocConnect symbol, it include in libodbc.so.
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http://support.apple.com/kb/HT4241
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Linux oracle9i connectivity using Pro C/C++

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