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我的makefile如下:

1. includepath=${ORACLE_HOME}/precomp/public  
2. occpath=${ORACLE_HOME}/oci/include  
3. libpath=${ORACLE_HOME}/lib  
4. libfile=-L${libpath} #/usr/lib/libstdc++.so.5  
5. incfile=-I${includepath}  
6. occifile=-I${occpath}  
7. cppOra:cppOra.cc  
8.         g++ -o cppOra cppOra.cc  ${occifile} ${incfile} ${libfile} -lclntsh -locci -Wall -O -g  
9. clean:  
10.         rm cppOra  

PS:-I是指定include路徑,-L是指定lib路徑

linux下我unzip後的路徑為: /home/oracle/cry/instantclient_11_2

1.編譯錯誤:
/usr/bin/ld: warning: libnnz11.so, needed by /usr/lib/oracle/11.1/client/lib/libclntsh.so, not found (try using -rpath or -rpath-link)
/usr/lib/oracle/11.1/client/lib/libclntsh.so: undefined reference to `nztSetSqlnetFunc'
/usr/lib/oracle/11.1/client/lib/libclntsh.so: undefined reference to `nztSetAppDefaultLocation'
/usr/lib/oracle/11.1/client/lib/libclntsh.so: undefined reference to `nzos_DisableClientAuthentication'

..

解決方法:

還是庫連線的問題,在/etc/ld.so.conf中新增 /home/oracle/cry/instantclient_11_2  後正常.

2.執行錯誤:

./cppOra: error while loading shared libraries: libnnz11.so: cannot open shared object file: No such file or directory

解決:

export  LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib:/usr/local/lib

其實質還是lib庫檔案連結的問題.

最後執行正常如下:

[[email protected] cry]$ ./cppOra
debug1
7369  AND  SMITH
2013-07-14 02:00:29
7499  AND  ALLEN
2013-07-14 02:00:29
7521  AND  WARD
2013-07-14 02:00:29
7566  AND  JONES
2013-07-14 02:00:29
7654  AND  MARTIN
2013-07-14 02:00:29
7698  AND  BLAKE
2013-07-14 02:00:29
7782  AND  CLARK
2013-07-14 02:00:29
7788  AND  SCOTT
2013-07-14 02:00:29
7839  AND  KING
2013-07-14 02:00:29
7844  AND  TURNER
2013-07-14 02:00:29
7876  AND  ADAMS
2013-07-14 02:00:29
7900  AND  JAMES
2013-07-14 02:00:29
7902  AND  FORD
2013-07-14 02:00:29
7934  AND  MILLER
2013-07-14 02:00:29
SELECT  SUCCESS