#include // OCI开发环境配置

// 远端oracle服务器端装好，配好TNS服务名称

//

// 安装oracle客户端软件时，选第3项(开发工具).

// oracle客户端安装完后，用自带的网络助手配置监听器和远端的TNS服务名称

//

// 将工程设定为win64, 包含进OCI头文件和库文件.

// 在打开远端oracle服务器(进入服务器桌面)的情况下，就可以运行调试测试程序了.

// 不用配ODBS的DSN.

#include "oci.h"

// oci.lib is win64, win32编译不过.

// 要安装win32版的oracle client后，拷贝oci开发目录出来用

#pragma comment(lib, "oci.lib")

// #pragma comment(lib, "ociw32.lib")

// 用oracle网络助手配置的远端网络服务名称, 不是ODBC助手配置出来的dsn名称

#define REMOTE_TNS_SERVICE_NAME "orcl" // 服务名称不区分大小写

#define DB_USER_NAME "system"

#define DB_USER_PWD "system"

#define CMD_QUIT "q"

#define CMD_TEST_SELECT_ALL_BUILD_IN_TABLE "test_select"

#define CMD_TEST_SQL "test_sql"

const char* psz_ary_case_sql[] = {

// "select table_name,tablespace_name,temporary from user_tables",

// "select 'x' from dual",

// "select * from v$version",

// "select * from REPCAT$_RESOLUTION_METHOD",

"select * from AQ$_INTERNET_AGENT_PRIVS",

NULL

};

const char* psz_ary_orcl_all_tbl_name[] = {

"LOGMNR_PARAMETER$",

"LOGMNR_SESSION$",

"MVIEW$_ADV_WORKLOAD",

"MVIEW$_ADV_BASETABLE",

"MVIEW$_ADV_SQLDEPEND",

"MVIEW$_ADV_PRETTY",

"MVIEW$_ADV_TEMP",

"MVIEW$_ADV_FILTER",

"MVIEW$_ADV_LOG",

"MVIEW$_ADV_FILTERINSTANCE",

"MVIEW$_ADV_LEVEL",

"MVIEW$_ADV_ROLLUP",

"MVIEW$_ADV_AJG",

"MVIEW$_ADV_FJG",

"MVIEW$_ADV_GC",

"MVIEW$_ADV_CLIQUE",

"MVIEW$_ADV_ELIGIBLE",

"MVIEW$_ADV_OUTPUT",

"MVIEW$_ADV_EXCEPTIONS",

"MVIEW$_ADV_PARAMETERS",

"MVIEW$_ADV_INFO",

"MVIEW$_ADV_JOURNAL",

"MVIEW$_ADV_PLAN",

"AQ$_QUEUE_TABLES",

"AQ$_QUEUES", // 这个表特别的大

"AQ$_SCHEDULES",

"AQ$_INTERNET_AGENTS",

"AQ$_INTERNET_AGENT_PRIVS",

"DEF$_ERROR",

"DEF$_DESTINATION",

"DEF$_CALLDEST",

"DEF$_DEFAULTDEST",

"DEF$_LOB", // 这个表特别的大

"DEF$_PROPAGATOR",

"DEF$_ORIGIN",

"DEF$_PUSHED_TRANSACTIONS",

"REPCAT$_REPCAT",

"REPCAT$_FLAVORS",

"REPCAT$_REPSCHEMA",

"REPCAT$_SNAPGROUP",

"REPCAT$_REPOBJECT",

"REPCAT$_REPCOLUMN",

"REPCAT$_KEY_COLUMNS",

"REPCAT$_GENERATED",

"REPCAT$_REPPROP",

"REPCAT$_REPCATLOG",

"REPCAT$_DDL",

"REPCAT$_REPGROUP_PRIVS",

"REPCAT$_PRIORITY_GROUP",

"REPCAT$_PRIORITY",

"REPCAT$_COLUMN_GROUP",

"REPCAT$_GROUPED_COLUMN",

"REPCAT$_CONFLICT",

"REPCAT$_RESOLUTION_METHOD",

"REPCAT$_RESOLUTION",

"REPCAT$_RESOLUTION_STATISTICS",

"REPCAT$_RESOL_STATS_CONTROL",

"REPCAT$_PARAMETER_COLUMN",

"REPCAT$_AUDIT_ATTRIBUTE",

"REPCAT$_AUDIT_COLUMN",

"REPCAT$_FLAVOR_OBJECTS",

"REPCAT$_TEMPLATE_STATUS",

"REPCAT$_TEMPLATE_TYPES",

"REPCAT$_REFRESH_TEMPLATES",

"REPCAT$_USER_AUTHORIZATIONS",

"REPCAT$_OBJECT_TYPES",

"REPCAT$_TEMPLATE_REFGROUPS",

"REPCAT$_TEMPLATE_OBJECTS",

"REPCAT$_TEMPLATE_PARMS",

"REPCAT$_OBJECT_PARMS",

"REPCAT$_USER_PARM_VALUES",

"REPCAT$_TEMPLATE_SITES",

"REPCAT$_SITE_OBJECTS",

"REPCAT$_RUNTIME_PARMS",

"REPCAT$_TEMPLATE_TARGETS",

"REPCAT$_EXCEPTIONS",

"REPCAT$_INSTANTIATION_DDL",

"REPCAT$_EXTENSION",

"REPCAT$_SITES_NEW",

"LOGSTDBY$PARAMETERS",

"LOGSTDBY$EVENTS",

"LOGSTDBY$APPLY_MILESTONE",

"LOGSTDBY$SCN",

"LOGSTDBY$FLASHBACK_SCN",

"LOGSTDBY$PLSQL",

"LOGSTDBY$SKIP_TRANSACTION",

"LOGSTDBY$SKIP",

"LOGSTDBY$SKIP_SUPPORT",

"LOGSTDBY$HISTORY",

"LOGSTDBY$EDS_TABLES",

"DEF$_AQCALL", // 这个表特别的大

"DEF$_AQERROR", // 这个表特别的大

"SQLPLUS_PRODUCT_PROFILE",

"MVIEW$_ADV_INDEX",

"MVIEW$_ADV_PARTITION",

"HELP",

"LOGMNR_GT_TAB_INCLUDE$",

"LOGMNR_GT_USER_INCLUDE$",

"LOGMNR_GT_XID_INCLUDE$",

"LOGMNRT_MDDL$",

"OL$",

"OL$HINTS",

"OL$NODES",

"LOGMNR_DICTSTATE$",

"LOGMNRC_GTLO",

"LOGMNRC_GTCS",

"LOGMNRC_GSII",

"LOGMNRC_GSBA",

"LOGMNR_SEED$",

"LOGMNR_DICTIONARY$",

"LOGMNR_OBJ$",

"LOGMNR_TAB$",

"LOGMNR_COL$",

"LOGMNR_ATTRCOL$",

"LOGMNR_TS$",

"LOGMNR_IND$",

"LOGMNR_USER$",

"LOGMNR_TABPART$",

"LOGMNR_TABSUBPART$",

"LOGMNR_TABCOMPART$",

"LOGMNR_TYPE$",

"LOGMNR_COLTYPE$",

"LOGMNR_ATTRIBUTE$",

"LOGMNR_LOB$",

"LOGMNR_CDEF$",

"LOGMNR_CCOL$",

"LOGMNR_ICOL$",

"LOGMNR_LOBFRAG$",

"LOGMNR_INDPART$",

"LOGMNR_INDSUBPART$",

"LOGMNR_INDCOMPART$",

"LOGMNR_LOGMNR_BUILDLOG",

"LOGMNR_NTAB$",

"LOGMNR_OPQTYPE$",

"LOGMNR_SUBCOLTYPE$",

"LOGMNR_KOPM$",

"LOGMNR_PROPS$",

"LOGMNR_ENC$",

"LOGMNR_REFCON$",

"LOGMNR_PARTOBJ$",

"LOGMNRP_CTAS_PART_MAP",

"LOGSTDBY$APPLY_PROGRESS",

"MVIEW$_ADV_OWB",

"LOGMNRC_DBNAME_UID_MAP",

"LOGMNR_RESTART_CKPT$", // 这个表特别的大

"LOGMNR_AGE_SPILL$", // 这个表特别的大

"LOGMNR_SESSION_EVOLVE$",

"LOGMNR_UID$",

"LOGMNR_SESSION_ACTIONS$",

"LOGMNR_SPILL$", // 这个表特别的大

"LOGMNR_FILTER$",

"LOGMNR_PROCESSED_LOG$",

"LOGMNR_GLOBAL$",

"LOGMNR_RESTART_CKPT_TXINFO$", // 这个表特别的大

"LOGMNR_LOG$",

"LOGMNR_ERROR$",

NULL

};

typedef struct _tag_col_info{

char* m_psz_name;

int m_i_len_name;

int m_i_data_type_org;

int m_i_data_type_now;

char* m_psz_data;

int m_i_len_data;

_tag_col_info() {

m_psz_name = NULL;

m_i_len_name = 0;

m_i_data_type_org = SQLT_CHR;

m_i_data_type_now = SQLT_CHR;

m_psz_data = NULL;

m_i_len_data = 0;

}

void clear() {

if (NULL != m_psz_name) {

delete [] m_psz_name;

m_psz_name = NULL;

}

if (NULL != m_psz_data) {

delete [] m_psz_data;

m_psz_data = NULL;

}

m_i_len_name = 0;

m_i_len_data = 0;

m_i_data_type_org = SQLT_CHR;

m_i_data_type_now = SQLT_CHR;

}

}TAG_COL_INFO;

void task_readme();

std::string get_oci_error(const char* psz_tip, OCIError* h_oci_error);

void print_oci_error(const char* psz_tip, OCIError* h_oci_error);

void do_oci_task_ex(OCIEnv* h_oci_env, OCIServer* h_oci_server, OCIError* h_oci_error, OCISvcCtx* h_oci_context, OCISession* h_oci_user);

void do_oci_task(const char* psz_sql, OCIEnv* h_oci_env, OCIServer* h_oci_server, OCIError* h_oci_error, OCISvcCtx* h_oci_context, OCISession* h_oci_user);

void case_oci_opt();

int g_i_columns_cnt = 0;

TAG_COL_INFO g_col_info[100];

int _tmain(int argc, _TCHAR* argv[])

{

case_oci_opt();

printf("END\n");

system("pause");

return 0;

}

void case_oci_opt()

{

sword sw_rc = 0;

sword sw_tmp = 0;

OCIEnv* h_oci_env = NULL; // 环境句柄

OCIServer* h_oci_server = NULL; // 服务器句柄

OCIError* h_oci_error = NULL; // 错误句柄

OCISvcCtx* h_oci_context = NULL; // 上下文句柄

OCISession* h_oci_user = NULL; // 用户句柄

sb4 errcode = 0;

do {

// 打印数据库连接信息

printf("connect local tns service name [%s], user name = [%s], password = [%s]\r\n",

REMOTE_TNS_SERVICE_NAME,

DB_USER_NAME,

DB_USER_PWD);

// 创建环境句柄(线程和环境对象)

sw_rc = OCIEnvCreate(&h_oci_env, OCI_THREADED | OCI_OBJECT, (dvoid*)0, 0, 0, 0, (size_t)0, (dvoid**)0);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create env handle", h_oci_error);

break;

}

// 创建服务器句柄

sw_rc = OCIHandleAlloc((dvoid*)h_oci_env, (dvoid**)&h_oci_server, OCI_HTYPE_SERVER, 0, (dvoid**)0);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create service handle", h_oci_error);

break;

}

// 创建错误句柄

sw_rc = OCIHandleAlloc((dvoid*)h_oci_env, (dvoid**)&h_oci_error, OCI_HTYPE_ERROR, 0, (dvoid**)0);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create error handle", h_oci_error);

break;

}

// OCI连接的不是ODBC DSN名称

// my_oracle_dsn

// ORA-12154: TNS: 无法解析指定的连接标识符

// OCI连接的是远端TNS服务名称

// TNSPING ORCL

// 成功

// 如果远端的oracle服务器关了，这里会显示错误：连接超时

// ORA-12170: TNS: 连接超时

// 连接远程数据库(tns服务名称)

sw_rc = OCIServerAttach(h_oci_server, h_oci_error,

(text*)REMOTE_TNS_SERVICE_NAME,

(sb4)strlen(REMOTE_TNS_SERVICE_NAME),

OCI_DEFAULT);

// packet 1~18

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : remote database connect", h_oci_error);

break;

}

// 创建上下文

sw_rc = OCIHandleAlloc((dvoid*)h_oci_env, (dvoid**)&h_oci_context, OCI_HTYPE_SVCCTX, 0, (dvoid**)0);

// packet 19~20

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create context", h_oci_error);

break;

}

// 设置上下文属性

sw_rc = OCIAttrSet((dvoid**)h_oci_context, OCI_HTYPE_SVCCTX, (dvoid*)h_oci_server, (ub4)0, OCI_ATTR_SERVER, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : set context", h_oci_error);

break;

}

// 创建用户句柄

sw_rc = OCIHandleAlloc((dvoid*)h_oci_env, (dvoid**)&h_oci_user, OCI_HTYPE_SESSION, 0, (dvoid**)0);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create user", h_oci_error);

break;

}

// 设置用户名

sw_rc = OCIAttrSet((dvoid*)h_oci_user, OCI_HTYPE_SESSION, (dvoid*)DB_USER_NAME, (ub4)strlen(DB_USER_NAME), OCI_ATTR_USERNAME, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : set user name", h_oci_error);

break;

}

// 设置口令

sw_rc = OCIAttrSet((dvoid*)h_oci_user, OCI_HTYPE_SESSION, (dvoid*)DB_USER_PWD, (ub4)strlen(DB_USER_PWD), OCI_ATTR_PASSWORD, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : set user password", h_oci_error);

break;

}

// 会话开始

sw_rc = OCISessionBegin(h_oci_context, h_oci_error, h_oci_user, OCI_CRED_RDBMS, OCI_DEFAULT);

// packet 21~26

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : session begin", h_oci_error);

break;

}

// 在会话上设置用户信息

sw_rc = OCIAttrSet((dvoid*)h_oci_context, OCI_HTYPE_SVCCTX, (dvoid*)h_oci_user, (ub4)0, OCI_ATTR_SESSION, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : set user info on service handle", h_oci_error);

break;

}

// 干活

do_oci_task_ex(h_oci_env, h_oci_server, h_oci_error, h_oci_context, h_oci_user);

printf("ok : db operation over\r\n");

} while (0);

// 会话结束

sw_rc = OCISessionEnd(h_oci_context, h_oci_error, h_oci_user, OCI_DEFAULT);

// packet 39~41

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : end session", h_oci_error);

}

// 断开连接

sw_rc = OCIServerDetach(h_oci_server, h_oci_error, OCI_DEFAULT);

// packet 42`46

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : detach server", h_oci_error);

}

// --------------------------------------------------------------------------------

// 释放句柄

// --------------------------------------------------------------------------------

sw_rc = OCIHandleFree((void*)h_oci_user, OCI_HTYPE_SESSION);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_SESSION", h_oci_error);

}

sw_rc = OCIHandleFree((void*)h_oci_context, OCI_HTYPE_SVCCTX);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_SVCCTX", h_oci_error);

}

sw_rc = OCIHandleFree((void*)h_oci_error, OCI_HTYPE_ERROR);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_ERROR", NULL);

}

sw_rc = OCIHandleFree((void*)h_oci_server, OCI_HTYPE_SERVER);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_SERVER", NULL);

}

sw_rc = OCIHandleFree((void*)h_oci_env, OCI_HTYPE_ENV);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_ENV", NULL);

}

}

std::string get_oci_error(const char* psz_tip, OCIError* h_oci_error)

{

char sz_buf[4096] = { '\0' };

sword sw_rc = 0;

sb4 errcode = 0;

std::string str_rc = "";

if (NULL != psz_tip) {

str_rc += psz_tip;

}

str_rc += "\r\n";

if (NULL != h_oci_error) {

sw_rc = OCIErrorGet(

h_oci_error,

(ub4)1,

(text*)NULL,

&errcode,

(OraText*)sz_buf,

(ub4)sizeof(sz_buf),

(b4)OCI_HTYPE_ERROR);

if (OCI_SUCCESS == sw_rc) {

str_rc += "\t";

str_rc += sz_buf;

}

}

return str_rc;

}

void print_oci_error(const char* psz_tip, OCIError* h_oci_error)

{

printf("%s\r\n", get_oci_error(psz_tip, h_oci_error).c_str());

}

void do_oci_task_ex(OCIEnv* h_oci_env, OCIServer* h_oci_server, OCIError* h_oci_error, OCISvcCtx* h_oci_context, OCISession* h_oci_user)

{

char sz_sql[4096] = { '\0' };

char c_tmp = '\0';

int i = 0;

do {

task_readme();

fflush(stdin);

memset(sz_sql, 0, sizeof(sz_sql));

do {

c_tmp = _getch();

if ((c_tmp == '\r') || (strlen(sz_sql) >= (sizeof(sz_sql) - 1))) {

printf("\n");

break;

}

if ('\b' == c_tmp) {

task_readme();

fflush(stdin);

memset(sz_sql, 0, sizeof(sz_sql));

continue;

}

sz_sql[strlen(sz_sql)] = c_tmp;

printf("%c", c_tmp);

} while (1);

printf("input is : %s\n", sz_sql);

if (0 == strcmp(CMD_QUIT, sz_sql)) {

printf("user command to quit\n");

break;

}

else if (0 == strcmp(CMD_TEST_SELECT_ALL_BUILD_IN_TABLE, sz_sql)) {

for (i = 0; i < sizeof(psz_ary_orcl_all_tbl_name) / sizeof(psz_ary_orcl_all_tbl_name[0]); i++) {

if (NULL == psz_ary_orcl_all_tbl_name[i]) {

break;

}

printf("test task [%d] begin ...\n", i);

memset(sz_sql, 0, sizeof(sz_sql));

sprintf(sz_sql, "select * from %s", psz_ary_orcl_all_tbl_name[i]);

printf("execut sql \"%s\" ...\r\n", sz_sql);

do_oci_task(sz_sql, h_oci_env, h_oci_server, h_oci_error, h_oci_context, h_oci_user);

printf("test task [%d] end ...\n", i);

}

}

else if (0 == strcmp(CMD_TEST_SQL, sz_sql)) {

for (i = 0; i < sizeof(psz_ary_case_sql) / sizeof(psz_ary_case_sql[0]); i++) {

if (NULL == psz_ary_case_sql[i]) {

break;

}

printf("test task [%d] begin ...\n", i);

memset(sz_sql, 0, sizeof(sz_sql));

sprintf(sz_sql, "%s", psz_ary_case_sql[i]);

printf("execut sql \"%s\" ...\r\n", sz_sql);

do_oci_task(sz_sql, h_oci_env, h_oci_server, h_oci_error, h_oci_context, h_oci_user);

printf("test task [%d] end ...\n", i);

}

}

else {

printf("execut sql \"%s\" ...\r\n", sz_sql);

do_oci_task(sz_sql, h_oci_env, h_oci_server, h_oci_error, h_oci_context, h_oci_user);

}

} while (1);

}

void task_readme()

{

printf("\n");

printf("// --------------------------------------------------------------------------------\n");

printf("// 任务列表:\n");

printf("// 输入SQL语句, 回车, 执行输入的SQL语句\n");

printf("// 输入'" CMD_TEST_SELECT_ALL_BUILD_IN_TABLE "', 对预置的表名数组进行select * 操作\n");

printf("// 输入'" CMD_TEST_SQL "', 执行预置的sql语句数组\n");

printf("// 输入'" CMD_QUIT "'退出\n");

printf("// --------------------------------------------------------------------------------\n");

}

void do_oci_task(const char* psz_sql, OCIEnv* h_oci_env, OCIServer* h_oci_server, OCIError* h_oci_error, OCISvcCtx* h_oci_context, OCISession* h_oci_user)

{

OraText* ora_text_select = (OraText*)psz_sql;

sword sw_rc = 0;

OCIStmt* h_oci_stmt = NULL; // SQL语句句柄

OCIDefine* h_oci_define = NULL;

OCIParam* h_oci_param = NULL;

OraText* colName = NULL;

ub4 colNameSize = 0;

ub2 stmt_type = 0; // SQL语句类型

ub4 fieldCount = 0; // 结果集字段数量

ub4 i_index = 0;

int i_row_index = 0;

ub4 col_len = 0;

ub4 col_lenSize = 0;

int dtypeNew = 0;

ub4 dtype = 0;

do {

if ((NULL == h_oci_env)

|| (NULL == h_oci_server)

|| (NULL == h_oci_error)

|| (NULL == h_oci_user)

|| (NULL == h_oci_context)) {

printf("oci handle invalid\r\n");

break;

}

printf("do oci task\r\n");

if (NULL != psz_sql) {

SetConsoleTitleA(psz_sql);

}

if (0 == strlen(psz_sql)) {

printf("please input sql\n");

break;

}

// 建立SQL语句句柄

sw_rc = OCIHandleAlloc(h_oci_env, (void**)&h_oci_stmt, OCI_HTYPE_STMT, (size_t)0, (dvoid**)0);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : create OCI_HTYPE_STMT", h_oci_error);

break;

}

// 准备SQL语句

sw_rc = OCIStmtPrepare(h_oci_stmt, h_oci_error, ora_text_select, (ub4)strlen((const char*)ora_text_select), (ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCIStmtPrepare", h_oci_error);

break;

}

// 执行SQL

printf("sw_rc = OCIStmtExecute(h_oci_context, h_oci_stmt, h_oci_error, (ub4)0, (ub4)0, (OCISnapshot*)0, (OCISnapshot*)0, OCI_DEFAULT);\r\n");

sw_rc = OCIStmtExecute(h_oci_context, h_oci_stmt, h_oci_error, (ub4)0, (ub4)0, (OCISnapshot*)0, (OCISnapshot*)0, OCI_DEFAULT);

// packet 27~29

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCIStmtExecute", h_oci_error);

break;

}

// printf("press any key to get result set\n");

// _getch();

// 获取SQL语句类型

sw_rc = OCIAttrGet(h_oci_stmt, OCI_HTYPE_STMT, &stmt_type, NULL, OCI_ATTR_STMT_TYPE, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_ATTR_STMT_TYPE", h_oci_error);

break;

}

// 取结果集列信息

if (OCI_STMT_SELECT == stmt_type) {

printf("query result set :\r\n");

printf("sw_rc = OCIAttrGet(h_oci_stmt, OCI_HTYPE_STMT, &fieldCount, NULL, OCI_ATTR_PARAM_COUNT, h_oci_error);\r\n");

sw_rc = OCIAttrGet(h_oci_stmt, OCI_HTYPE_STMT, &fieldCount, NULL, OCI_ATTR_PARAM_COUNT, h_oci_error);

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_ATTR_STMT_TYPE", h_oci_error);

break;

}

printf("query result set columns = %d\r\n", fieldCount);

g_i_columns_cnt = fieldCount;

for (i_index = 0; i_index < fieldCount; i_index++) {

h_oci_param = NULL;

dtype = 0;

printf("columns %d : \r\n", i_index + 1);

ub4 dtypeSize = sizeof(dtype);

sw_rc = OCIParamGet(h_oci_stmt, OCI_HTYPE_STMT, h_oci_error, (void**)&h_oci_param, i_index + 1);

if (OCI_SUCCESS != sw_rc)

{

print_oci_error("error : OCIParamGet", h_oci_error);

break;

}

sw_rc = OCIAttrGet(h_oci_param, OCI_DTYPE_PARAM, &dtype, &dtypeSize, OCI_ATTR_DATA_TYPE, h_oci_error);

if (OCI_SUCCESS != sw_rc)

{

print_oci_error("error : OCIAttrGet", h_oci_error);

break;

}

g_col_info[i_index].m_i_data_type_org = (int)dtype;

printf("\tg_col_info[%d].m_i_data_type_org = %d\r\n", i_index, g_col_info[i_index].m_i_data_type_org);

colName = NULL;

colNameSize = sizeof(colName);

sw_rc = OCIAttrGet(h_oci_param, OCI_DTYPE_PARAM, &colName, &colNameSize, OCI_ATTR_NAME, h_oci_error);

if (OCI_SUCCESS != sw_rc)

{

print_oci_error("error : OCIAttrGet", h_oci_error);

break;

}

g_col_info[i_index].m_i_len_name = (int)colNameSize;

g_col_info[i_index].m_psz_name = new char[g_col_info[i_index].m_i_len_name + 1];

memset(g_col_info[i_index].m_psz_name, 0, g_col_info[i_index].m_i_len_name + 1);

// strcpy_s(g_col_info[i_index].m_psz_name, g_col_info[i_index].m_i_len_name, (char*)colName);

memcpy(g_col_info[i_index].m_psz_name, (char*)colName, g_col_info[i_index].m_i_len_name);

printf("\tname = %s\r\n", (char*)g_col_info[i_index].m_psz_name);

printf("\tname len = %d\r\n", (int)g_col_info[i_index].m_i_len_name);

col_len = 0;

col_lenSize = sizeof(col_len);

dtypeNew = SQLT_CHR;

switch (dtype)

{

case SQLT_DAT:

case SQLT_DATE:

case SQLT_TIME:

case SQLT_TIME_TZ:

case SQLT_TIMESTAMP:

case SQLT_TIMESTAMP_TZ:

case SQLT_TIMESTAMP_LTZ:

{

dtypeNew = SQLT_ODT;

col_len = sizeof(OCIDate);

}

break;

case SQLT_CLOB:

case SQLT_CHR:

case SQLT_INT:

case SQLT_UIN:

case SQLT_NUM:

case SQLT_FLT:

case SQLT_STR:

case SQLT_VNU:

case SQLT_LNG:

case SQLT_VCS:

case SQLT_LVC:

case SQLT_AFC:

case SQLT_AVC:

{

sw_rc = OCIAttrGet(h_oci_param, OCI_DTYPE_PARAM, &col_len, &col_lenSize, OCI_ATTR_DATA_SIZE, h_oci_error);

if (OCI_SUCCESS != sw_rc)

{

print_oci_error("error : OCIAttrGet", h_oci_error);

break;

}

printf("\tdata len = %d\r\n", (int)col_len);

dtypeNew = SQLT_CHR;

}

break;

default:

// assert(0);

break;

}

g_col_info[i_index].m_i_data_type_now = (int)dtypeNew;

printf("\tg_col_info[%d].m_i_data_type_now = %d\r\n", i_index, g_col_info[i_index].m_i_data_type_now);

g_col_info[i_index].m_i_len_data = (int)col_len;

g_col_info[i_index].m_psz_data = new char[g_col_info[i_index].m_i_len_data + 1];

memset(g_col_info[i_index].m_psz_data, 0, g_col_info[i_index].m_i_len_data + 1);

h_oci_define = NULL;

sw_rc = OCIDefineByPos(h_oci_stmt, &h_oci_define, h_oci_error, i_index + 1, g_col_info[i_index].m_psz_data, col_len * sizeof(char), dtypeNew, 0, 0, 0, OCI_DEFAULT);

if (OCI_SUCCESS != sw_rc)

{

print_oci_error("error : OCIDefineByPos", h_oci_error);

break;

}

printf("----------------------------------------\r\n");

}

}

// 遍历行集

i_row_index = 0;

do {

sw_rc = OCIStmtFetch(h_oci_stmt, h_oci_error, 1, OCI_FETCH_NEXT, OCI_DEFAULT);

// 如果是查第一行，并不发收包，可能执行后，返回的数据中已经包含第一行

// packet 30~32 如果数据不够了，会继续请求包。

// packet 33~35

// packet 36~38

if (OCI_NO_DATA == sw_rc)

{

// 只有OCI_NO_DATA代表行集读完了

printf("OCI_NO_DATA\n");

break;

}

if (OCI_SUCCESS != sw_rc)

{

printf("error : sw_rc = %d\n", sw_rc);

// sw_rc is -1

print_oci_error("OCIStmtFetch", h_oci_error);

// ORA-01405: 提取的列值为 NULL

// 只是这行有问题, 可以继续读下一行

// 看了表内容, 确实有的字段是NULL

continue;

}

for (i_index = 0; i_index != g_i_columns_cnt; i_index++)

{

printf("row[%d]col[%d] = %s\r\n", i_row_index, i_index, (NULL != g_col_info[i_index].m_psz_data) ? g_col_info[i_index].m_psz_data : "NULL");

}

printf("----------------------------------------\r\n");

i_row_index++;

// break; // @todo for debug, only show one row

} while (1);

// 释放资源

for (i_index = 0; i_index != g_i_columns_cnt; i_index++)

{

g_col_info[i_index].clear();

}

} while (0);

printf("press any key to end the query\n");

_getch();

printf("will be end query\n");

Sleep(1000);

// 释放oci句柄

if (NULL != h_oci_stmt) {

sw_rc = OCIHandleFree((void*)h_oci_stmt, OCI_HTYPE_STMT);

}

if (OCI_SUCCESS != sw_rc) {

print_oci_error("error : OCI_HTYPE_STMT", NULL);

}

}