sql语句

CREATE TABLE "SYS_LOG" ("ID" NVARCHAR2(32) NOT NULL ,"LOG_TYPE" NUMBER(11) ,"LOG_CONTENT" NVARCHAR2(1000) ,"OPERATE_TYPE" NUMBER(11) ,"USERID" NVARCHAR2(32) ,"USERNAME" NVARCHAR2(100) ,"IP" NVARCHAR2(100) ,"METHOD" NVARCHAR2(500) ,"REQUEST_URL" NVARCHAR2(255) ,"REQUEST_PARAM" NCLOB ,"REQUEST_TYPE" NVARCHAR2(10) ,"COST_TIME" NUMBER(20) ,"CREATE_BY" NVARCHAR2(32) ,"CREATE_TIME" DATE ,"UPDATE_BY" NVARCHAR2(32) ,"UPDATE_TIME" DATE
);INSERT INTO "SYS_LOG" VALUES ('1487d69ff97888f3a899e2ababb5ae48', '1', '用户名: admin,登录成功！', NULL, NULL, NULL, '127.0.0.1', NULL, NULL, NULL, NULL, NULL, 'jeecg-boot', TO_DATE('2019-01-22 14:21:17', 'SYYYY-MM-DD HH24:MI:SS'), NULL, NULL);
INSERT INTO "SYS_LOG" VALUES ('cc7fa5567e7833a3475b29b7441a2976', '1', '用户名: admin,登录成功！', NULL, NULL, NULL, '127.0.0.1', NULL, NULL, NULL, NULL, NULL, 'jeecg-boot', TO_DATE('2019-01-22 14:21:31', 'SYYYY-MM-DD HH24:MI:SS'), NULL, NULL);
INSERT INTO "SYS_LOG" VALUES ('asdqwe567e7833a3475b29b7441asdqw', '1', '用户名: cxx,登录成功！', NULL, NULL, NULL, '127.0.0.1', NULL, NULL, NULL, NULL, NULL, 'jeecg-boot', TO_DATE('2019-01-22 14:21:31', 'SYYYY-MM-DD HH24:MI:SS'), NULL, NULL);

select查询

#define _CRT_SECURE_NO_WARNINGS     //这个宏定义最好要放到.c文件的第一行
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <oci.h>
static text *username = (text *) "scott";
static text *password = (text *) "oracle";/* Define SQL statements to be used in program. ,LOG_TYPE,LOG_CONTENT  */
static text *selectlogbytype = (text *)"SELECT ID,LOG_CONTENT,LOG_TYPE FROM SYS_LOG WHERE LOG_TYPE = 1";static OCIEnv *envhp;
static OCIError *errhp;static void checkerr(/*_ OCIError *errhp, sword status _*/);
static void cleanup(/*_ void _*/);
static void myfflush(/*_ void _*/);
int main(/*_ int argc, char *argv[] _*/);static sword status;int main()
{//参数类型//ub1 logid, logType,logContent;sb2 ind[3];                  /* 指示符变量 */OCIDescribe  *dschndl1 = (OCIDescribe *)0,*dschndl2 = (OCIDescribe *)0,*dschndl3 = (OCIDescribe *)0;OCISession *authp = (OCISession *)0; /* 用户会话句柄 */OCIServer *srvhp;   /* 服务器句柄 */OCISvcCtx *svchp;    /* 服务句柄 */OCIStmt   *stmthp;OCIDefine *defnp = (OCIDefine *)0;OCIBind  *bnd1p = (OCIBind *)0;             /* the first bind handle */OCIBind  *bnd2p = (OCIBind *)0;             /* the second bind handle */OCIBind  *bnd3p = (OCIBind *)0;             /* the third bind handle */OCIBind  *bnd4p = (OCIBind *)0;             /* the fourth bind handle */OCIBind  *bnd5p = (OCIBind *)0;             /* the fifth bind handle */OCIBind  *bnd6p = (OCIBind *)0;             /* the sixth bind handle */sword errcode = 0;/* 将模式初始化为线程和对象环境 */errcode = OCIEnvCreate((OCIEnv **)&envhp, (ub4)OCI_DEFAULT,(dvoid *)0, (dvoid * (*)(dvoid *, size_t)) 0,(dvoid * (*)(dvoid *, dvoid *, size_t)) 0,(void(*)(dvoid *, dvoid *)) 0, (size_t)0, (dvoid **)0);if (errcode != 0) {(void)printf("OCIEnvCreate failed with errcode = %d.\n", errcode);exit(1);}/* 分配一个错误句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&errhp, OCI_HTYPE_ERROR,(size_t)0, (dvoid **)0);/* 分配一个服务器句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&srvhp, OCI_HTYPE_SERVER,(size_t)0, (dvoid **)0);/* 分配一个服务句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&svchp, OCI_HTYPE_SVCCTX,(size_t)0, (dvoid **)0);//(void)OCIServerAttach(srvhp, errhp, (text *)"", strlen(""), 0);//连接远程服务器(void)OCIServerAttach(srvhp, errhp, (text *)"82.156.213.963:1521/oracle", strlen("82.156.213.963:1521/oracle"), 0);/* 在服务上下文句柄中设置服务器属性*/(void)OCIAttrSet((dvoid *)svchp, OCI_HTYPE_SVCCTX, (dvoid *)srvhp,(ub4)0, OCI_ATTR_SERVER, (OCIError *)errhp);/* 分配一个用户会话句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&authp,(ub4)OCI_HTYPE_SESSION, (size_t)0, (dvoid **)0);/* 在用户会话句柄中设置用户名属性 */(void)OCIAttrSet((dvoid *)authp, (ub4)OCI_HTYPE_SESSION,(dvoid *)username, (ub4)strlen((char *)username),(ub4)OCI_ATTR_USERNAME, errhp);/* 在用户会话句柄中设置密码属性 */(void)OCIAttrSet((dvoid *)authp, (ub4)OCI_HTYPE_SESSION,(dvoid *)password, (ub4)strlen((char *)password),(ub4)OCI_ATTR_PASSWORD, errhp);checkerr(errhp, OCISessionBegin(svchp, errhp, authp, OCI_CRED_RDBMS,(ub4)OCI_DEFAULT));/* 在服务上下文句柄中设置用户会话属性*/(void)OCIAttrSet((dvoid *)svchp, (ub4)OCI_HTYPE_SVCCTX,(dvoid *)authp, (ub4)0,(ub4)OCI_ATTR_SESSION, errhp);checkerr(errhp, OCIHandleAlloc((dvoid *)envhp, (dvoid **)&stmthp,OCI_HTYPE_STMT, (size_t)0, (dvoid **)0));//定义变量的类型 ,LOG_TYPE,LOG_CONTENTtext logId[50];text logContent[100];int logType;//准备sql语句checkerr(errhp, OCIStmtPrepare(stmthp, errhp, selectlogbytype,(ub4)strlen((char *)selectlogbytype),(ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT));//绑定输出列checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp, 1, (ub1*)logId,sizeof(logId), SQLT_STR, &ind[0], (ub2 *)0,(ub2 *)0, OCI_DEFAULT));checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp,2, (ub1*)logContent,sizeof(logContent), SQLT_STR, &ind[1], (ub2 *)0, (ub2 *)0, OCI_DEFAULT));checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp, 3, (dvoid *)&logType,(sb4)sizeof(int), SQLT_INT, &ind[2], (ub2 *)0, (ub2 *)0, OCI_DEFAULT));if ((status = OCIStmtExecute(svchp, stmthp, errhp, (ub4)1, (ub4)0,(CONST OCISnapshot *) NULL, (OCISnapshot *)NULL, OCI_DEFAULT))){checkerr(errhp, status);cleanup();return OCI_ERROR;}else {//用do while是因为 先执行一次do{printf("logId=%s,logContent=%s,logType=%d\n", logId, logContent, logType);} while ((OCIStmtFetch(stmthp, errhp, 1, OCI_FETCH_NEXT, OCI_DEFAULT)) != OCI_NO_DATA);}
}void checkerr(errhp, status)
OCIError *errhp;
sword status;
{text errbuf[512];sb4 errcode = 0;switch (status){case OCI_SUCCESS:break;case OCI_SUCCESS_WITH_INFO:(void)printf("Error - OCI_SUCCESS_WITH_INFO\n");break;case OCI_NEED_DATA:(void)printf("Error - OCI_NEED_DATA\n");break;case OCI_NO_DATA:(void)printf("Error - OCI_NODATA\n");break;case OCI_ERROR:(void)OCIErrorGet((dvoid *)errhp, (ub4)1, (text *)NULL, &errcode,errbuf, (ub4) sizeof(errbuf), OCI_HTYPE_ERROR);(void)printf("Error - %.*s\n", 512, errbuf);break;case OCI_INVALID_HANDLE:(void)printf("Error - OCI_INVALID_HANDLE\n");break;case OCI_STILL_EXECUTING:(void)printf("Error - OCI_STILL_EXECUTE\n");break;case OCI_CONTINUE:(void)printf("Error - OCI_CONTINUE\n");break;default:break;}
}/**  Exit program with an exit code.*/
void cleanup()
{if (envhp)(void)OCIHandleFree((dvoid *)envhp, OCI_HTYPE_ENV);return;
}void myfflush()
{eb1 buf[50];fgets((char *)buf, 50, stdin);
}/* end of file cdemo81.c */

insert插入

#define _CRT_SECURE_NO_WARNINGS     //这个宏定义最好要放到.c文件的第一行
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <oci.h>
static text *username = (text *) "scott";
static text *password = (text *) "oracle";/* Define SQL statements to be used in program. ,LOG_TYPE,LOG_CONTENT  */
static text *selectlogbytype = (text *)"SELECT ID,LOG_CONTENT,LOG_TYPE FROM SYS_LOG WHERE LOG_TYPE = 1";
static text *insertsql = (text *)"INSERT INTO SYS_LOG(ID, LOG_CONTENT,LOG_TYPE) VALUES (:logId, :logContent, :logType)";static OCIEnv *envhp;
static OCIError *errhp;static void checkerr(/*_ OCIError *errhp, sword status _*/);
static void cleanup(/*_ void _*/);
static void myfflush(/*_ void _*/);
int main(/*_ int argc, char *argv[] _*/);static sword status;int main()
{//参数类型//ub1 logid, logType,logContent;sb2 ind[3];                  /* 指示符变量 */OCIDescribe  *dschndl1 = (OCIDescribe *)0,*dschndl2 = (OCIDescribe *)0,*dschndl3 = (OCIDescribe *)0;OCISession *authp = (OCISession *)0; /* 用户会话句柄 */OCIServer *srvhp;   /* 服务器句柄 */OCISvcCtx *svchp;    /* 服务句柄 */OCIStmt   *inserthp, *stmthp;OCIDefine *defnp = (OCIDefine *)0;OCIBind  *bnd1p = (OCIBind *)0;             /* the first bind handle */OCIBind  *bnd2p = (OCIBind *)0;             /* the second bind handle */OCIBind  *bnd3p = (OCIBind *)0;             /* the third bind handle */OCIBind  *bnd4p = (OCIBind *)0;             /* the fourth bind handle */OCIBind  *bnd5p = (OCIBind *)0;             /* the fifth bind handle */OCIBind  *bnd6p = (OCIBind *)0;             /* the sixth bind handle */sword errcode = 0;/* 将模式初始化为线程和对象环境 */errcode = OCIEnvCreate((OCIEnv **)&envhp, (ub4)OCI_DEFAULT,(dvoid *)0, (dvoid * (*)(dvoid *, size_t)) 0,(dvoid * (*)(dvoid *, dvoid *, size_t)) 0,(void(*)(dvoid *, dvoid *)) 0, (size_t)0, (dvoid **)0);if (errcode != 0) {(void)printf("OCIEnvCreate failed with errcode = %d.\n", errcode);exit(1);}/* 分配一个错误句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&errhp, OCI_HTYPE_ERROR,(size_t)0, (dvoid **)0);/* 分配一个服务器句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&srvhp, OCI_HTYPE_SERVER,(size_t)0, (dvoid **)0);/* 分配一个服务句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&svchp, OCI_HTYPE_SVCCTX,(size_t)0, (dvoid **)0);(void)OCIServerAttach(srvhp, errhp, (text *)"", strlen(""), 0);//连接远程服务器//(void)OCIServerAttach(srvhp, errhp, (text *)"82.156.213.852:1521/oracle", strlen("82.156.213.852:1521/oracle"), 0);/* 在服务上下文句柄中设置服务器属性*/(void)OCIAttrSet((dvoid *)svchp, OCI_HTYPE_SVCCTX, (dvoid *)srvhp,(ub4)0, OCI_ATTR_SERVER, (OCIError *)errhp);/* 分配一个用户会话句柄 */(void)OCIHandleAlloc((dvoid *)envhp, (dvoid **)&authp,(ub4)OCI_HTYPE_SESSION, (size_t)0, (dvoid **)0);/* 在用户会话句柄中设置用户名属性 */(void)OCIAttrSet((dvoid *)authp, (ub4)OCI_HTYPE_SESSION,(dvoid *)username, (ub4)strlen((char *)username),(ub4)OCI_ATTR_USERNAME, errhp);/* 在用户会话句柄中设置密码属性 */(void)OCIAttrSet((dvoid *)authp, (ub4)OCI_HTYPE_SESSION,(dvoid *)password, (ub4)strlen((char *)password), (ub4)OCI_ATTR_PASSWORD, errhp);checkerr(errhp, OCISessionBegin(svchp, errhp, authp, OCI_CRED_RDBMS, (ub4)OCI_DEFAULT));/* 在服务上下文句柄中设置用户会话属性*/(void)OCIAttrSet((dvoid *)svchp, (ub4)OCI_HTYPE_SVCCTX,(dvoid *)authp, (ub4)0,(ub4)OCI_ATTR_SESSION, errhp);checkerr(errhp, OCIHandleAlloc((dvoid *)envhp, (dvoid **)&inserthp,OCI_HTYPE_STMT, (size_t)0, (dvoid **)0));/**当我们绑定insert语句时，我们还需要分配存储空间因此将在分配语句句柄时分配它；这将在语句消失且内容减少时获得释放碎片化。+2，以允许\\n和\\0**///insert的字段sword   insert_type;text     *insert_id, *insert_content;sb4      idlen = 32;sb4      typelen = 11;sb4      contentlen = 50;checkerr(errhp, OCIHandleAlloc((dvoid *)envhp, (dvoid **)&inserthp,OCI_HTYPE_STMT, (size_t)idlen + 2,(dvoid **)&insert_id));insert_id = "asdww1111";insert_content = "asdadffff2";insert_type = 2;//准备insert sql语句checkerr(errhp, OCIStmtPrepare(inserthp, errhp, insertsql,(ub4)strlen((char *)insertsql),(ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT));sb2      sal_ind, job_ind;sword    empno, sal, deptno;/*  Bind the placeholders in the INSERT statement. */if ((status = OCIBindByName(inserthp, &bnd1p, errhp, (text *) ":logId",-1, (dvoid *)insert_id,idlen + 1, SQLT_STR, (dvoid *)0,(ub2 *)0, (ub2 *)0, (ub4)0, (ub4 *)0, OCI_DEFAULT)) ||(status = OCIBindByName(inserthp, &bnd2p, errhp, (text *) ":logContent",-1, (dvoid *)insert_content,contentlen + 1, SQLT_STR, (dvoid *)0,(ub2 *)0, (ub2 *)0, (ub4)0, (ub4 *)0, OCI_DEFAULT)) ||(status = OCIBindByName(inserthp, &bnd3p, errhp, (text *) ":logType",-1, &insert_type,(sword) sizeof(insert_type), SQLT_INT, (dvoid *)0,(ub2 *)0, (ub2 *)0, (ub4)0, (ub4 *)0, OCI_DEFAULT))){checkerr(errhp, status);cleanup();return OCI_ERROR;}//执行insert语句if ((status = OCIStmtExecute(svchp, inserthp, errhp, (ub4)1, (ub4)0,(CONST OCISnapshot *) NULL, (OCISnapshot *)NULL, OCI_DEFAULT))&& status != 1){checkerr(errhp, status);cleanup();return OCI_ERROR;}/*//定义变量的类型 ,LOG_TYPE,LOG_CONTENTtext logId[50];text logContent[100];int logType;//准备select sql语句checkerr(errhp, OCIStmtPrepare(stmthp, errhp, selectlogbytype,(ub4)strlen((char *)selectlogbytype),(ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT));//绑定输出列checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp, 1, (ub1*)logId,sizeof(logId), SQLT_STR, &ind[0], (ub2 *)0, (ub2 *)0, OCI_DEFAULT));checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp, 2, (ub1*)logContent,sizeof(logContent), SQLT_STR, &ind[1], (ub2 *)0, (ub2 *)0, OCI_DEFAULT));checkerr(errhp, OCIDefineByPos(stmthp, &defnp, errhp, 3, (dvoid *)&logType,(sb4)sizeof(int), SQLT_INT, &ind[2], (ub2 *)0, (ub2 *)0, OCI_DEFAULT));if ((status = OCIStmtExecute(svchp, stmthp, errhp, (ub4)1, (ub4)0,(CONST OCISnapshot *) NULL, (OCISnapshot *)NULL, OCI_DEFAULT))){checkerr(errhp, status);cleanup();return OCI_ERROR;}else {//用do while是因为 先执行一次do{printf("logId=%s,logContent=%s,logType=%d\n", logId, logContent, logType);} while ((OCIStmtFetch(stmthp, errhp, 1, OCI_FETCH_NEXT, OCI_DEFAULT)) != OCI_NO_DATA);}*//* Commit the change. */if (status = OCITransCommit(svchp, errhp, 0)){checkerr(errhp, status);cleanup();return OCI_ERROR;}}void checkerr(errhp, status)
OCIError *errhp;
sword status;
{text errbuf[512];sb4 errcode = 0;switch (status){case OCI_SUCCESS:break;case OCI_SUCCESS_WITH_INFO:(void)printf("Error - OCI_SUCCESS_WITH_INFO\n");break;case OCI_NEED_DATA:(void)printf("Error - OCI_NEED_DATA\n");break;case OCI_NO_DATA:(void)printf("Error - OCI_NODATA\n");break;case OCI_ERROR:(void)OCIErrorGet((dvoid *)errhp, (ub4)1, (text *)NULL, &errcode,errbuf, (ub4) sizeof(errbuf), OCI_HTYPE_ERROR);(void)printf("Error - %.*s\n", 512, errbuf);break;case OCI_INVALID_HANDLE:(void)printf("Error - OCI_INVALID_HANDLE\n");break;case OCI_STILL_EXECUTING:(void)printf("Error - OCI_STILL_EXECUTE\n");break;case OCI_CONTINUE:(void)printf("Error - OCI_CONTINUE\n");break;default:break;}
}/**  Exit program with an exit code.*/
void cleanup()
{if (envhp)(void)OCIHandleFree((dvoid *)envhp, OCI_HTYPE_ENV);return;
}void myfflush()
{eb1 buf[50];fgets((char *)buf, 50, stdin);
}/* end of file cdemo81.c */

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C语言OCI的方式连接oracle数据库

sql语句

select查询

insert插入

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