NDBT_SQLPrepare.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:4k
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 */
- #include <NdbOut.hpp>
- #include <sqlext.h>
- #include <stdio.h>
- #include <NdbTest.hpp>
- #include <NdbMain.h>
- using namespace std;
- SQLHDBC hdbc;
- SQLHSTMT hstmt;
- SQLHENV henv;
- SQLHDESC hdesc;
- SQLRETURN SQLPrepare_retcode, SQLAllocHandl_retcode, SQLSTATEs;
- SQLCHAR Sqlstate[5];
- SQLINTEGER NativeError;
- SQLSMALLINT i, MsgLen;
- SQLCHAR Msg[SQL_MAXIMUM_MESSAGE_LENGTH];
- void NDBT_SQLPrepare_DisplayError(SQLSMALLINT HandleType, SQLHSTMT InputHandle);
- // Execute a statement to retrieve rows from the Customers table. We can
- // create the table and inside rows into NDB by invoking SQLExecute() or
- // another program called TestDirectSQL
- int NDBT_SQLPrepare()
- {
- // Allocate An Environment Handle
- SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &henv);
- // Allocate A Connection Handle
- SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);
- // Allocate A Connection Handle
- SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc);
- // Connecte to database
- SQLConnect(hdbc, (SQLCHAR*) "Sales", 5, (SQLCHAR*) "JohnS", 5, (SQLCHAR*) "Sesame", 6);
- // Allocate A Statement Handle
- SQLAllocHandl_retcode = SQLAllocHandle(SQL_HANDLE_STMT, hdbc, &hstmt);
- /* We can change the SQL statement in the SQLPrepare() function according to the requirement of Johnny. */
- /* The order of the SQL statement could be CREATE, INSERT, UPDATE, SELECT, DELETE or another special SQL */
- if (SQLAllocHandl_retcode == SQL_SUCCESS){
- SQLPrepare_retcode = SQLPrepare(hstmt, (SQLCHAR*)"SELECT CustID, Name, Address, Phone FROM Customers", 56);
- if (SQLPrepare_retcode == SQL_INVALID_HANDLE)
- ndbout << "Handle Type is SQL_HANDLE_STMT, but string SQL_INVALID_HANDLE and SQL_SUCCESS still appeared. Please check programm" << endl;
- if (SQLPrepare_retcode == SQL_ERROR || SQLPrepare_retcode == SQL_SUCCESS_WITH_INFO)
- NDBT_SQLPrepare_DisplayError(SQL_HANDLE_STMT, hstmt);
- SQLExecute(hstmt);
- SQLFreeHandle(SQL_HANDLE_STMT, hstmt);
- }
- // Disconnect from the database before free Connection Handle and Environment Handle
- SQLDisconnect(hdbc);
- // Free the Connection Handle
- SQLFreeHandle(SQL_HANDLE_DBC, hdbc);
- // Free the Environment Handle
- SQLFreeHandle(SQL_HANDLE_ENV, henv);
- return 0;
- }
- void NDBT_SQLPrepare_DisplayError(SQLSMALLINT HandleType, SQLHSTMT InputHandle)
- {
- i = 1;
- while ((SQLSTATEs = SQLGetDiagRec(HandleType, InputHandle, i,
- Sqlstate, &NativeError, Msg, sizeof(Msg),
- &MsgLen)) != SQL_NO_DATA) {
- ndbout << "the HandleType is:" << HandleType << endl;
- ndbout << "the InputHandle is :" << InputHandle << endl;
- ndbout << "the output state is:" << (char *)Sqlstate << endl;
- i ++;
- }
- }