Linux下編譯Proc程式,Linux編譯Proc程式
需要在linux寫簡單的Proc程式,資料很少,完成後做簡單總結。
中間參考過http://blog.csdn.net/gaogao303/article/details/17303453中的很多內容,表示感謝。
1、 從oracle網站下載以下安裝包
注意根據OS版本進行選擇64位或者32位。其中sqlplus用於串連測試,可以不裝。
oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-precomp-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm
2、 按照以下順序安裝
先裝basic,其他順序沒有限制。
oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-precomp-11.2.0.4.0-1.x86_64.rpm
oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm
如果要ubuntu下安裝,要現用alien轉成deb後安裝。
可能需要先下載alien
apt-get install alien
然後:
alien -i oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm alien -i oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm alien -i oracle-instantclient11.2-precomp-11.2.0.4.0-1.x86_64.rpm alien -i oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm
3、 設定環境變數
預設安裝路徑是/usr/lib/oracle,此時如下設定
export ORACLE_HOME=/usr/lib/oracle/11.2/client64/export LD_LIBRARY_PATH=/usr/lib/oracle/11.2/client64/lib
另外,
ldconfig /usr/lib/oracle/11.2/client64/lib一下已確保動態庫路徑被更新。
4、 測試
1) 執行proc xx.pc 進行測試。
2) 執行sqlplus64 user/pass@host:port/DBNAME進行串連測試
xx.pc可用以下代碼
5、 Proc設定
環境變數設定好後,proc會預設到ORACLEHOME/precomp/admin下讀取設定檔,因此需要引用的標頭檔路徑等,需到此進行配置,如果沒有,則從 ORACLE_HOME/lib下面複製一份即可。一般需要追加配置的是linux系統、gcc、和oracle的標頭檔路徑。
1) Centos6.5下追加以下配置通過:
sys_include=/usr/lib/gcc/i686-redhat-linux/4.4.7/includesys_include=/usr/include/oracle/11.2/client64
2) ubuntu14.04下追加以下配置通過
sys_include=/usr/include/x86_64-linux-gnusys_include=/usr/lib/gcc/x86_64-linux-gnu/4.8/includesys_include=/usr/include/oracle/11.2/client64
pc檔案可參照
http://docs.oracle.com/cd/B28359_01/appdev.111/b28427/toc.htm
#include <stdio.h>#include <string.h>#include <sqlca.h>#include <oraca.h>EXEC ORACLE OPTION(ORACA=YES);int db_connect(const char* connstr){ EXEC SQL BEGIN DECLARE SECTION; char uid[256] = {0}; EXEC SQL END DECLARE SECTION; EXEC SQL WHENEVER SQLERROR GOTO ORACLE_ERROR; snprintf(uid, sizeof(uid), "%s", connstr); // Try to connect to oracle EXEC SQL CONNECT :uid; printf("Connect to [%s] successful\n", uid); return 0;ORACLE_ERROR: EXEC SQL WHENEVER SQLERROR CONTINUE; printf("Connect to [%s] failed\n", uid); printf("Failed code(%d), message(%s)\n", sqlca.sqlcode, sqlca.sqlerrm.sqlerrmc); return -1;}int db_disconnect(void){ EXEC SQL WHENEVER SQLERROR GOTO ORACLE_ERROR; EXEC SQL ROLLBACK WORK RELEASE; /* printf("Disconnect successful\n"); */ return 0;ORACLE_ERROR: EXEC SQL WHENEVER SQLERROR CONTINUE; return -1;}int db_query(const char* name, const char* pass){ EXEC SQL BEGIN DECLARE SECTION; char username[128] = {0}; varchar passwords[128]; int types = 0; EXEC SQL END DECLARE SECTION; EXEC SQL WHENEVER SQLERROR GOTO ORACLE_ERROR; memset(&passwords, 0, sizeof(passwords)); snprintf(username, sizeof(username), "%s", name); EXEC SQL SELECT PASSWORD, TYPE INTO :passwords, :types FROM USER WHERE NAME = :username; printf("----\n"); printf("USER_NAME = %s\nPASSWORD=%s\nUSER_TYPE=%d\n", username, (char*)passwords.arr, types[0]); printf("----\n"); return 0;ORACLE_ERROR: EXEC SQL WHENEVER SQLERROR CONTINUE; return -1;}