SQLNumResultColsTest.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:6k
源码类别:
MySQL数据库
开发平台:
Visual C++
- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- /**
- * @file SQLNumResultColsTest.cpp
- */
- #include <common.hpp>
- using namespace std;
- #define NRC_MESSAGE_LENGTH 200
- SQLHSTMT NRC_hstmt;
- SQLHSTMT NRC_hdbc;
- SQLHENV NRC_henv;
- SQLHDESC NRC_hdesc;
- void SQLNumResultColsTest_DisplayError(SQLSMALLINT NRC_HandleType,
- SQLHSTMT NRC_InputHandle);
- /**
- * Test returning descriptor information
- *
- * Tests:
- * -# Testing how many columns exist in the result data set
- *
- * @return Zero, if test succeeded
- */
- int SQLNumResultColsTest()
- {
- SQLRETURN retcode;
- SQLSMALLINT NumColumns;
- SQLCHAR SQLStmt[NRC_MESSAGE_LENGTH];
- ndbout << endl << "Start SQLNumResultCols Testing" << endl << endl;
- //**************************************************************
- //** If there is no prepared or executed statement associated **
- //** with SQL-statement **
- //**************************************************************
- retcode = SQLNumResultCols(NRC_hstmt, &NumColumns);
- if (retcode == SQL_ERROR || retcode == SQL_SUCCESS_WITH_INFO)
- {
- SQLNumResultColsTest_DisplayError(SQL_HANDLE_STMT, NRC_hstmt);
- }
- //************************************
- //** Allocate An Environment Handle **
- //************************************
- retcode = SQLAllocHandle(SQL_HANDLE_ENV,
- SQL_NULL_HANDLE,
- &NRC_henv);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- ndbout << "Allocated an environment Handle!" << endl;
- //*********************************************
- //** Set the ODBC application Version to 3.x **
- //*********************************************
- retcode = SQLSetEnvAttr(NRC_henv,
- SQL_ATTR_ODBC_VERSION,
- (SQLPOINTER) SQL_OV_ODBC3,
- SQL_IS_UINTEGER);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- ndbout << "Set the ODBC application Version to 3.x!" << endl;
- //**********************************
- //** Allocate A Connection Handle **
- //**********************************
- retcode = SQLAllocHandle(SQL_HANDLE_DBC,
- NRC_henv,
- &NRC_hdbc);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- ndbout << "Allocated a connection Handle!" << endl;
- // *******************
- // ** Connect to DB **
- // *******************
- retcode = SQLConnect(NRC_hdbc,
- (SQLCHAR *) connectString(),
- SQL_NTS,
- (SQLCHAR *) "",
- SQL_NTS,
- (SQLCHAR *) "",
- SQL_NTS);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- ndbout << "Connected to DB : OK!" << endl;
- else
- {
- ndbout << "Failure to Connect DB!" << endl;
- return NDBT_FAILED;
- }
- //*******************************
- //** Allocate statement handle **
- //*******************************
- retcode = SQLAllocHandle(SQL_HANDLE_STMT,
- NRC_hdbc,
- &NRC_hstmt);
- if(retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- ndbout << "Allocated a statement handle!" << endl;
- //************************
- //** Define a statement **
- //************************
- strcpy((char *) SQLStmt, "SELECT * FROM Customers");
- // strcpy((char *) SQLStmt,
- // "INSERT INTO Customers (CustID, Name, Address, Phone) VALUES (7, 'pet', 'LM vag 8', '88888')");
- //*******************************************
- //** Prepare and Execute the SQL statement **
- //*******************************************
- retcode = SQLExecDirect(NRC_hstmt,
- SQLStmt,
- SQL_NTS);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO) {
- //*****************************************************
- //** Only general error test. It is not in test rule **
- //*****************************************************
- retcode = SQLNumResultCols(NRC_hstmt, &NumColumns);
- if (retcode == SQL_SUCCESS || retcode == SQL_SUCCESS_WITH_INFO)
- {
- ndbout << endl << "Number of columns in the result data set" << endl;
- ndbout << NumColumns << endl;
- }
- else
- SQLNumResultColsTest_DisplayError(SQL_HANDLE_STMT, NRC_hstmt);
- }
- // *********************************
- // ** Disconnect and Free Handles **
- // *********************************
- SQLDisconnect(NRC_hdbc);
- SQLFreeHandle(SQL_HANDLE_STMT, NRC_hstmt);
- SQLFreeHandle(SQL_HANDLE_DBC, NRC_hdbc);
- SQLFreeHandle(SQL_HANDLE_ENV, NRC_henv);
- return NDBT_OK;
- }
- void SQLNumResultColsTest_DisplayError(SQLSMALLINT NRC_HandleType,
- SQLHSTMT NRC_InputHandle)
- {
- SQLRETURN SQLSTATEs;
- SQLINTEGER NativeError;
- SQLSMALLINT i, MsgLen;
- SQLCHAR Msg[NRC_MESSAGE_LENGTH],Sqlstate[5];
- i = 1;
- ndbout << "-------------------------------------------------" << endl;
- ndbout << "Error diagnostics:" << endl;
- while ((SQLSTATEs = SQLGetDiagRec(NRC_HandleType,
- NRC_InputHandle,
- i,
- Sqlstate,
- &NativeError,
- Msg,
- sizeof(Msg),
- &MsgLen))
- != SQL_NO_DATA)
- {
- ndbout << "the HandleType is:" << NRC_HandleType << endl;
- ndbout << "the InputHandle is :" << (long)NRC_InputHandle << endl;
- ndbout << "the Msg is: " << (char *)Msg << endl;
- ndbout << "the output state is:" << (char *)Sqlstate << endl;
- i ++;
- break;
- }
- ndbout << "-------------------------------------------------" << endl;
- }