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C++ PQexecPrepared函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中PQexecPrepared函数的典型用法代码示例。如果您正苦于以下问题：C++ PQexecPrepared函数的具体用法？C++ PQexecPrepared怎么用？C++ PQexecPrepared使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了PQexecPrepared函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: PQexecPrepared_stub

CAMLprim value PQexecPrepared_stub(
  value v_conn, value v_stm_name, value v_params, value v_binary_params)
{
  CAMLparam1(v_conn);
  PGconn *conn = get_conn(v_conn);
  np_callback *np_cb = get_conn_cb(v_conn);
  PGresult *res;
  size_t len = caml_string_length(v_stm_name) + 1;
  char *stm_name = caml_stat_alloc(len);
  size_t nparams = Wosize_val(v_params);
  const char * const *params = copy_params(v_params, nparams);
  int *formats, *lengths;
  copy_binary_params(v_params, v_binary_params, nparams, &formats, &lengths);
  memcpy(stm_name, String_val(v_stm_name), len);
  caml_enter_blocking_section();
    res = PQexecPrepared(conn, stm_name, nparams, params, lengths, formats, 0);
    free(stm_name);
    free_binary_params(formats, lengths);
    free_params(params, nparams);
  caml_leave_blocking_section();
  CAMLreturn(alloc_result(res, np_cb));
#else
CAMLprim value PQexecPrepared_stub(
  value __unused v_conn, value __unused v_stm_name, value __unused v_params,
  value __unused v_binary_params)
{
  caml_failwith("Postgresql.exec_prepared: not supported");
  return Val_unit;
#endif
}
开发者ID:Nevor，项目名称:postgresql-ocaml，代码行数:30，代码来源:postgresql_stubs.c


示例2: htonl64

void PgTblFmncMUsergroup::updateRec(
			FmncMUsergroup* rec
		) {
	PGresult* res;

	ubigint _grp = htonl64(rec->grp);
	ubigint _own = htonl64(rec->own);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_grp,
		(char*) &_own,
		rec->sref.c_str(),
		rec->Comment.c_str(),
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(ubigint),
		0,
		0,
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 0, 0, 1};

	res = PQexecPrepared(dbs, "TblFmncMUsergroup_updateRec", 5, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblFmncMUsergroup_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:fabmaniac，代码行数:32，代码来源:FmncMUsergroup.cpp


示例3: db_select1

void db_select1(int32_t* value) {
    if (debug) {
        fprintf(stderr, "db_select1()\n");
    }
    PGresult* res = PQexecPrepared(conn,
            STMT_ID_SELECT1,
            0,
            NULL,
            NULL,
            NULL,
            1);
    CHECK_RESULT(res);
    *value = -1;
    if (PQntuples(res) == 0) {
        fprintf(stderr, "db_select1() return no rows\n");
        if (exit_on_error) {
            exit(EXIT_FAILURE);
        }
        PQclear(res);
    } else {
        *value = ntohl(*(int32_t *) PQgetvalue(res, 0, 0));
        if (debug) {
            fprintf(stderr, "db_select1() return %d\n", *value);
        }
    }
    PQclear(res);
}
开发者ID:vvromanov，项目名称:db_test，代码行数:27，代码来源:test_dao_libpq.cpp


示例4: htonl64

void PgTblFmncQSelect::updateRec(
			FmncQSelect* rec
		) {
	PGresult* res;

	ubigint _jref = htonl64(rec->jref);
	uint _jnum = htonl(rec->jnum);
	uint _ix = htonl(rec->ix);
	ubigint _ref = htonl64(rec->ref);
	ubigint _qref = htonl64(rec->qref);

	const char* vals[] = {
		(char*) &_jref,
		(char*) &_jnum,
		(char*) &_ix,
		(char*) &_ref,
		(char*) &_qref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(uint),
		sizeof(uint),
		sizeof(ubigint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1, 1, 1};

	res = PQexecPrepared(dbs, "TblFmncQSelect_updateRec", 5, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK) throw DbsException("DbsException / PgSQL: error executing statement! (TblFmncQSelect_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:fabmaniac，代码行数:33，代码来源:FmncQSelect.cpp


示例5: htonl64

void PgTblPlnrRMStackMStructure::updateRec(
			PlnrRMStackMStructure* rec
		) {
	PGresult* res;

	ubigint _refPlnrMStack = htonl64(rec->refPlnrMStack);
	ubigint _refPlnrMStructure = htonl64(rec->refPlnrMStructure);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refPlnrMStack,
		(char*) &_refPlnrMStructure,
		rec->fromSrefPlnrMLayer.c_str(),
		rec->toSrefPlnrMLayer.c_str(),
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(ubigint),
		0,
		0,
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 0, 0, 1};

	res = PQexecPrepared(dbs, "TblPlnrRMStackMStructure_updateRec", 5, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblPlnrRMStackMStructure_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:planar，代码行数:32，代码来源:PlnrRMStackMStructure.cpp


示例6: PrepareQuery

void PgStatement::ExecutePrepared(const ArrayRecord& raParameters)
  {
  if(pgr == NULL)
    PrepareQuery(raParameters);
  else
    CleanUpResult();

  PgParameters pgp(raParameters);
  int * pnParamFormats = pgp.GetParamFormats();

  try
    {
    pgr = PQexecPrepared
      (
      pg->conn,
      sQueryHandle.mbc_str(),
      pgp.GetParamCount(),
      pgp.GetParamValues(),
      pgp.GetParamLengths(),
      pnParamFormats,
      0
      );
    }
  catch(...)
    {
    ThrowPgError(wxT("PgStatement::ExecutePrepared() Query caused exception: %s."));
    }

  ExecStatusType exs = PQresultStatus(pgr);
  if(exs == PGRES_FATAL_ERROR)
    ThrowPgError(wxT("PgStatement::ExecutePrepared() Query execution failed: %s."));

  nCurrentRecord = 0;
  }
开发者ID:joeyates，项目名称:sherpa，代码行数:34，代码来源:postgres.cpp


示例7: execPrepared

static PGresult *
execPrepared(char *qName, List *values)
{
    char **params;
    int i;
    int nParams = LIST_LENGTH(values);
    PGresult *res = NULL;
    params = CALLOC(sizeof(char*),LIST_LENGTH(values));

    ASSERT(postgresIsInitialized());

    i = 0;
    FOREACH(Constant,c,values)
        params[i++] = STRING_VALUE(c);

    DEBUG_LOG("run query %s with parameters <%s>",
            qName, exprToSQL((Node *) values));

    res = PQexecPrepared(plugin->conn,
            qName,
            nParams,
            (const char *const *) params,
            NULL,
            NULL,
            0);

    if (PQresultStatus(res) != PGRES_TUPLES_OK)
        CLOSE_RES_CONN_AND_FATAL(res, "query %s failed:\n%s", qName,
                PQresultErrorMessage(res));

    return res;
}
开发者ID:dayu070，项目名称:GProm，代码行数:32，代码来源:metadata_lookup_postgres.c


示例8: htonl64

void PgTblPlnrAMUserAccess::updateRec(
			PlnrAMUserAccess* rec
		) {
	PGresult* res;

	ubigint _refPlnrMUser = htonl64(rec->refPlnrMUser);
	uint _x1IxPlnrVCard = htonl(rec->x1IxPlnrVCard);
	uint _ixPlnrWUiaccess = htonl(rec->ixPlnrWUiaccess);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refPlnrMUser,
		(char*) &_x1IxPlnrVCard,
		(char*) &_ixPlnrWUiaccess,
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(uint),
		sizeof(uint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1, 1};

	res = PQexecPrepared(dbs, "TblPlnrAMUserAccess_updateRec", 4, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblPlnrAMUserAccess_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:planar，代码行数:31，代码来源:PlnrAMUserAccess.cpp


示例9: htonl64

void PgTblPlnrAccRMUserUniversal::updateRec(
			PlnrAccRMUserUniversal* rec
		) {
	PGresult* res;

	ubigint _refPlnrMUser = htonl64(rec->refPlnrMUser);
	uint _unvIxPlnrVMaintable = htonl(rec->unvIxPlnrVMaintable);
	ubigint _unvUref = htonl64(rec->unvUref);
	uint _ixPlnrVAccess = htonl(rec->ixPlnrVAccess);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refPlnrMUser,
		(char*) &_unvIxPlnrVMaintable,
		(char*) &_unvUref,
		(char*) &_ixPlnrVAccess,
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(uint),
		sizeof(ubigint),
		sizeof(uint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1, 1, 1};

	res = PQexecPrepared(dbs, "TblPlnrAccRMUserUniversal_updateRec", 5, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblPlnrAccRMUserUniversal_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:planar，代码行数:34，代码来源:PlnrAccRMUserUniversal.cpp


示例10: fill_query_column_types

void fill_query_column_types(pgsnmpd_query *query)
{
    int i;
    Oid type;  /* NB! PostgreSQL's Oid, not Net-SNMP's oid */
    PGresult *res;
    const char *values[1];
    char param[10];
    
    /* This translates SQL types to SNMP types, as follows:
     * Conversions for these four types are obvious
     * ASN_INTEGER
     * ASN_FLOAT
     * ASN_BOOLEAN
     * ASN_OBJECT_ID
     * 
     * Everything else becomes a string:
     * ASN_OCTET_STR
     * 
     * Perhaps one day we'll also use ASN_DOUBLE
     */

    if (query->result == NULL)
        return;

    values[0] = param;

    for (i = 0; i < query->colcount; i++) {
        if (query->types[i] != 255) {
            continue;
        }
        type = PQftype(query->result, i);
        /* 
         * TODO: query pg_type table (including pg_type.h to use builtin
         * constants got all kinds of errors I'd rather not deal with
         */
        sprintf(param, "%d", type);
        res = PQexecPrepared(dbconn, "TYPEQUERY", 1, values, NULL, NULL, 0);
        if (PQresultStatus(res) != PGRES_TUPLES_OK)
            snmp_log(LOG_ERR, "Couldn't determine column type\n");
        else {
            switch (atoi(PQgetvalue(res, 0, 0))) {
                case 0:
                    query->types[i] = ASN_INTEGER;
                    break;
                case 1:
                    query->types[i] = ASN_FLOAT;
                    break;
                case 2: 
                    query->types[i] = ASN_BOOLEAN;
                    break;
                case 3: 
                    query->types[i] = ASN_OCTET_STR;
                    break;
                default: /* If we get here, it's because the TYPEQUERY is b0rken */
                    snmp_log(LOG_ERR, "Unknown column type translation. This is a bug.\n");
            }
        }
        PQclear(res);
    }
}
开发者ID:GunioRobot，项目名称:pgsnmpd，代码行数:60，代码来源:customquery.c


示例11: htonl64

void PgTblFmncAMToolChar::updateRec(
			FmncAMToolChar* rec
		) {
	PGresult* res;

	ubigint _refFmncMTool = htonl64(rec->refFmncMTool);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refFmncMTool,
		rec->x1OsrefFmncKToolchar.c_str(),
		rec->Val.c_str(),
		rec->Comment.c_str(),
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		0,
		0,
		0,
		sizeof(ubigint)
	};
	const int f[] = {1, 0, 0, 0, 1};

	res = PQexecPrepared(dbs, "TblFmncAMToolChar_updateRec", 5, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblFmncAMToolChar_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:fabmaniac，代码行数:31，代码来源:FmncAMToolChar.cpp


示例12: htonl64

void PgTblPlnrQPrjList::updateRec(
			PlnrQPrjList* rec
		) {
	PGresult* res;

	ubigint _jref = htonl64(rec->jref);
	uint _jnum = htonl(rec->jnum);
	ubigint _ref = htonl64(rec->ref);
	uint _ixVState = htonl(rec->ixVState);
	ubigint _qref = htonl64(rec->qref);

	const char* vals[] = {
		(char*) &_jref,
		(char*) &_jnum,
		(char*) &_ref,
		rec->Title.c_str(),
		(char*) &_ixVState,
		(char*) &_qref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(uint),
		sizeof(ubigint),
		0,
		sizeof(uint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1, 0, 1, 1};

	res = PQexecPrepared(dbs, "TblPlnrQPrjList_updateRec", 6, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK) throw DbsException("DbsException / PgSQL: error executing statement! (TblPlnrQPrjList_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:planar，代码行数:35，代码来源:PlnrQPrjList.cpp


示例13: htonl64

void PgTblFmncJMRunState::updateRec(
			FmncJMRunState* rec
		) {
	PGresult* res;

	ubigint _refFmncMRun = htonl64(rec->refFmncMRun);
	uint _x1Start = htonl(rec->x1Start);
	uint _ixVState = htonl(rec->ixVState);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refFmncMRun,
		(char*) &_x1Start,
		(char*) &_ixVState,
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(uint),
		sizeof(uint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1, 1};

	res = PQexecPrepared(dbs, "TblFmncJMRunState_updateRec", 4, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblFmncJMRunState_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:fabmaniac，代码行数:31，代码来源:FmncJMRunState.cpp


示例14: db_list_contains

int db_list_contains(brain_t brain, enum list type, word_t word) {
	PGresult *res;
	const char *param[3];
	char tmp[3][32];

	if (brain == 0 || word == 0) return -EINVAL;
	if (db_connect())
		return -EDB;

	SET_PARAM(param, tmp, 0, brain);
	SET_PARAM(param, tmp, 1, type);
	SET_PARAM(param, tmp, 2, word);

	res = PQexecPrepared(conn, "list_get", 3, param, NULL, NULL, 0);
	if (PQresultStatus(res) != PGRES_TUPLES_OK) goto fail;
	if (PQntuples(res) == 0) goto not_found;

	PQclear(res);

	return OK;

fail:
	log_error("db_list_contains", PQresultStatus(res), PQresultErrorMessage(res));
	PQclear(res);
	return -EDB;

not_found:
	PQclear(res);
	return -ENOTFOUND;
}
开发者ID:lp0，项目名称:sqlhal，代码行数:30，代码来源:db_list_postgres.c


示例15: sparams

int postgresql_statement::execute(const vector<shared_ptr<sql_value> > &args)
{
  int n=args.size();
  vector<shared_ptr<string> > sparams(n);
  vector<const char *> params(n);
  vector<int> param_lens(n);

  for (int i=0;i<n;i++){
    sparams[i]=sql_to_str(args[i]);
    if (sparams[i]){
      params[i]=sparams[i]->c_str();
      param_lens[i]=sparams[i]->length();
    }
    else{
      params[i]=NULL;
      param_lens[i]=0;
    }
  }

  PGresult *r=PQexecPrepared(conn->get(), "", n, &params[0], &param_lens[0], NULL, 0);
  if (r==NULL)
    throw database_error("PQexecPrepared failed");

  shared_ptr<postgresql_result> rtmp=
    shared_ptr<postgresql_result>(new postgresql_result(r));

  if (!rtmp->command_ok() &&
      !rtmp->tuple_ok())
    throw database_error(PQresultErrorMessage(rtmp->get()));

  res.swap(rtmp);

  // TODO: return modified row count
  return 0;
}
开发者ID:beam2d，项目名称:pficommon，代码行数:35，代码来源:statement.cpp


示例16: fsal_posixdb_lockHandleForUpdate

/** 
 * @brief Lock the line of the Handle table with inode & devid defined in p_info
 * 
 * @param p_conn
 *        Database connection
 * @param p_info 
 *        Information about the file
 * 
 * @return ERR_FSAL_POSIXDB_NOERR if no error,
 *         another error code else.
 */
fsal_posixdb_status_t fsal_posixdb_lockHandleForUpdate(fsal_posixdb_conn * p_conn,      /* IN */
                                                       fsal_posixdb_fileinfo_t *
                                                       p_info /* IN */ )
{
  PGresult *p_res;
  char devid_str[MAX_DEVICEIDSTR_SIZE];
  char inode_str[MAX_INODESTR_SIZE];
  const char *paramValues[2];

  CheckConn(p_conn);

  BeginTransaction(p_conn, p_res);

  snprintf(devid_str, MAX_DEVICEIDSTR_SIZE, "%lli", (long long int)p_info->devid);
  snprintf(inode_str, MAX_INODESTR_SIZE, "%lli", (long long int)p_info->inode);
  paramValues[0] = devid_str;
  paramValues[1] = inode_str;
  p_res = PQexecPrepared(p_conn, "lookupHandleByInodeFU", 2, paramValues, NULL, NULL, 0);
  CheckResult(p_res);
  PQclear(p_res);

  /* Do not end the transaction, because it will be closed by the next call to a posixdb function */

  ReturnCodeDB(ERR_FSAL_POSIXDB_NOERR, 0);
}
开发者ID:MeghanaM，项目名称:nfs-ganesha，代码行数:36，代码来源:posixdb_lock.c


示例17: db_select

void db_select(int32_t id, int32_t* value) {
    if (debug) {
        fprintf(stderr, "db_select(%d)\n", id);
    }
    int32_t _id = htonl(id);
    const char* paramValues[] = {
        (const char*) &_id,
    };
    PGresult* res = PQexecPrepared(conn,
            STMT_ID_SELECT,
            1,
            paramValues,
            paramLengths,
            paramFormats,
            1);
    CHECK_RESULT(res);
    *value = -1;
    if (PQntuples(res) == 0) {
        fprintf(stderr, "db_select(%d) return no rows\n", id);
        if (exit_on_error) {
            exit(EXIT_FAILURE);
        }
        PQclear(res);
    } else {
        *value = ntohl(*(int32_t *) PQgetvalue(res, 0, 0));
        if (debug) {
            fprintf(stderr, "db_select(%d) return %d\n", id, *value);
        }
    }
    PQclear(res);
}
开发者ID:vvromanov，项目名称:db_test，代码行数:31，代码来源:test_dao_libpq.cpp


示例18: htonl64

void PgTblFmncSvcRMOrgMTool::updateRec(
			FmncSvcRMOrgMTool* rec
		) {
	PGresult* res;

	ubigint _refFmncMOrg = htonl64(rec->refFmncMOrg);
	ubigint _refFmncMTool = htonl64(rec->refFmncMTool);
	ubigint _ref = htonl64(rec->ref);

	const char* vals[] = {
		(char*) &_refFmncMOrg,
		(char*) &_refFmncMTool,
		(char*) &_ref
	};
	const int l[] = {
		sizeof(ubigint),
		sizeof(ubigint),
		sizeof(ubigint)
	};
	const int f[] = {1, 1, 1};

	res = PQexecPrepared(dbs, "TblFmncSvcRMOrgMTool_updateRec", 3, vals, l, f, 0);

	if (PQresultStatus(res) != PGRES_COMMAND_OK)
		throw DbsException("DbsException / PgSQL: error executing statement! (TblFmncSvcRMOrgMTool_updateRec)\n");

	PQclear(res);
};
开发者ID:epsitech，项目名称:fabmaniac，代码行数:28，代码来源:FmncSvcRMOrgMTool.cpp


示例19: PQclear

query_result sql_database::send_query(connection & c, const query_list & sql, std::string & error)
{
    if (sql.size() > 1)
        PQclear(PQexec(c.conn, "BEGIN;"));

    std::vector<sql_statement> results;
    for (auto && query : sql)
    {
        std::vector<const char *> args;
        for (auto && arg : query.args)
            args.push_back(arg.c_str());
        auto res = PQexecPrepared(c.conn, query.name.c_str(), args.size(), args.data(),
                                  nullptr, nullptr, 0);
        auto status = PQresultStatus(res);
        if (status == PGRES_FATAL_ERROR)
        {
            if (sql.size() > 1)
                PQclear(PQexec(c.conn, "ROLLBACK;"));
            error = "sql query failed due to "_s + PQresultErrorMessage(res)
                + ", query: " + query.name;
            PQclear(res);
            break;
        }
        else if (status == PGRES_TUPLES_OK && PQntuples(res) > 0)
            results.emplace_back(res, PQnfields(res), PQntuples(res));
        else
            PQclear(res);
    }

    if (sql.size() > 1)
        PQclear(PQexec(c.conn, "COMMIT;"));
    if (!results.empty())
        return query_result { std::move(results) };
    return { };
}
开发者ID:Ryuuke，项目名称:desperion，代码行数:35，代码来源:sql_database.cpp


示例20: real_query

			void real_query()
			{
				char const * const *pvalues = 0;
				int *plengths = 0;
				int *pformats = 0;
				std::vector<char const *> values;
				std::vector<int> lengths;
				std::vector<int> formats;
				if(params_>0) {
					values.resize(params_,0);
					lengths.resize(params_,0);
					formats.resize(params_,0);
					for(unsigned i=0;i<params_;i++) {
						if(params_set_[i]!=null_param) {
							if(params_pvalues_[i]!=0) {
								values[i]=params_pvalues_[i];
								lengths[i]=params_plengths_[i];
							}
							else {
								values[i]=params_values_[i].c_str();
								lengths[i]=params_values_[i].size();
							}
							if(params_set_[i]==binary_param) {
								formats[i]=1;
							}
						}
					}
					pvalues=&values.front();
					plengths=&lengths.front();
					pformats=&formats.front();
				}
				if(res_) {
					PQclear(res_);
					res_ = 0;
				}
				if(prepared_id_.empty()) {
					res_ = PQexecParams(
						conn_,
						query_.c_str(),
						params_,
						0, // param types
						pvalues,
						plengths,
						pformats, // format - text
						0 // result format - text
						);
				}
				else {
					res_ = PQexecPrepared(
						conn_,
						prepared_id_.c_str(),
						params_,
						pvalues,
						plengths,
						pformats, // format - text
						0 // result format - text
						);
				}
			}
开发者ID:aspectron，项目名称:jsx，代码行数:59，代码来源:postgres_backend.cpp



注：本文中的PQexecPrepared函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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