程式碼示例：

/ 定義符號常數

#define USERNAME "SCOTT"

#define PASSWORD "x"

#include <stdio.h>

// 說明SQLCA和ORACA

EXEC SQL INCLUDE SQLCA;

EXEC SQL INCLUDE ORACA;

// 啟用ORACLE通訊區：ORACA=YES，使它能被使用

EXEC ORACLE OPTION (ORACA=YES);

// 說明SQL變數

EXEC SQL BEGIN DECLARE SECTION;

char* username=USERNAME;

char* password=PASSWORD;

VARCHAR sqlstmt[80];

int emp_number;

VARCHAR emp_name[15];

VARCHAR job[50],job1[50],job2[50];

float salary;

EXEC SQL END DECLARE SECTION;

main()

{

EXEC SQL WHENEVER SQLERROR GOTO sqlerror;

// 發生錯誤時，儲存SQL語句至ORACA

oraca.orastxtf=ORASTFERR;

// 登入到ORACLE

EXEC SQL CONNECT :username IDENTIFIED BY :password;

printf("/nConnect to ORACLE./n");

// 構造動態SQL語句

sqlstmt.len=sprintf(sqlstmt.arr,"INSERT INTO EMP(EMPNO,ENAME,JOB,SAL)VALUES(:V1,:V2,:V3,:V4)");

// 顯示SQL語句

puts(sqlstmt.arr);

// 用PREPARE語句分析當前的動態INSERT語句，語句名是S

EXEC SQL PREPARE S FROM :sqlstmt;

// 迴圈插表

for(;;)

{

printf("/nEnter employee number:");

scanf("%d",&emp_number);

if(emp_number==0)break;

printf("/nEnter employee name:");

scanf("%s",&emp_name.arr);

emp_name.len=strlen(emp_name.arr);

printf("/nEnter employee job:");

scanf("%s",&job.arr);

job.len=strlen(job.arr);

salary = 0; // With VC6, Missing this line will cause C Run-Time Error R6002.

printf("/nEnter salary:");

scanf("%f",&salary);

EXEC SQL EXECUTE S USING :emp_number,:emp_name,:job,:salary;

}

// 提交事務，退出ORACLE

EXEC SQL COMMIT RELEASE;

printf("/nHave a good day!/n");

exit(0);

sqlerror:

// 列印錯誤資訊

printf("/n%.*s/n",sqlca.sqlerrm.sqlerrml,sqlca.sqlerrm.sqlerrmc);

// 打印出錯SQL語句

printf("/n/"%.*s.../"/n",oraca.orastxt.orastxtl,oraca.orastxt.orastxtc);

// 打印出錯SQL語句所在行號及所在檔名

printf("on line %d of %.*s/n/n",oraca.oraslnr,

oraca.orasfnm.orasfnml,oraca.orasfnm.orasfnmc);