1.1 介绍

   关系型数据库，SQLServer是由微软公司开发的一种关系型据库管理系统，它已广泛用于电子商务、银行、保险、电力等行业。SQLServer提供了对XML和Internet标准的支持，具有强大的、灵活的、基于Web的应用程序管理功能。

1.2 优缺点

优点：

1>通过创建唯一性索引，可以保证数据库表中每一行数据的唯一性。
2>通过创建索引可以大大加快数据的检索速度
3>通过使用索引，可以在查询的过程中，使用优化隐藏器，提高系统的性能。
4>在使用分组和排序子句进行数据检索时，同样可以显著减少查询中分组和排序的时间

缺点：

1>只能运行在windows平台，平台单一不具备开放性
2>并行实施与共存模型不成熟，难以处理大规模的数据，伸缩性有限
3>当用户连接多时性能会变得很差并且不稳定
4>客户端支持应用模式，仅支持C/S模式

1.3 服务器安装

1.3.1 安装软件：

1> 下载sql server 2019 下载地址：https://www.microsoft.com/zh-cn/sql-server/sql-server-downloads

/* * Filename: DataBase.h* Modify: ybLin* Description: database* *******************************************************/#ifndef __EXSKY_DATA_BASE_H__#define __EXSKY_DATA_BASE_H__#include <basic/myThread.h>#import "..\WinLib\Others\msado15.dll" no_namespace rename("EOF","adoEOF")typedef struct {char sMateriel[256];char sOrderNo[256];char sModel[256];char sLens[256];char sSNCode[256];char sMacId[256];char sAddTime[64];} _mac_info;class CDataBase {public:CDataBase(const char* hostIP = NULL);~CDataBase();public:bool m_nCheckModel;void UpdateDB();bool InitDB();bool Init(const char* hostIP = "192.168.8.121", const char* dataBase = "ManageDB", int hostPort = 1433,const char* user = "sa", const char* pwd = "123456");bool Free();//useint InsertMacInfo(_mac_info* _info);int GetMacInfo(_mac_info* _info)private:bool ADOExecute(const char* sql);int DataWrite(const char* sql);private:boolm_bInitOk;my_mutex_t*m_pDbMutex;charm_sHostIp[256];int m_nHostPort;charm_sDataBase[256];charm_sAccount[256];charm_sPwd[256];BOOL m_bTest;_ConnectionPtr m_pConnection;_RecordsetPtr m_pADOSet;_RecordsetPtr m_pADOSetAuto;};#endif

database.cpp

/* * Filename: DataBase.cpp* Modify: ybLin* Description: database* *******************************************************/#ifdef WIN32#include <time.h>#include <Windows.h>#include <io.h>#endif#include "DataBase.h"#include <time.h> #include <stdio.h> #include <Windows.h>#include <time.h>#include <basic/myThread.h>int SwitchPath(char* target, const char* src){while (*src != '\0') {if (*src == '\\')*target++ = *src;*target++ = *src++;}*target = '\0';return 0;}CDataBase::CDataBase(const char* hostIP){m_nCheckModel = false;m_pDbMutex = my_mutex_init();memset(m_sDataBase, 0, sizeof(m_sDataBase));memset(m_sHostIp, 0, sizeof(m_sHostIp));m_nHostPort = 0;memset(m_sAccount, 0, sizeof(m_sAccount));memset(m_sPwd, 0, sizeof(m_sPwd));m_bInitOk = false;}CDataBase::~CDataBase(){if (m_bInitOk) Free();my_mutex_destroy(m_pDbMutex);}void CDataBase::UpdateDB(){char sql[1024] = {0};snprintf(sql, 1023, "if not exists(select * from syscolumns where id=object_id('sninfo') and name='model') ALTER table sninfo add model varchar(30)");DataWrite(sql);char sql2[1024] = {0};snprintf(sql2, 1023, "if not exists(select * from syscolumns where id=object_id('sninfo') and name='model2') ALTER table sninfo add model2 varchar(30)");DataWrite(sql2);}bool CDataBase::Init(const char* hostIP, const char* dataBase, int hostPort,const char* user, const char* pwd){snprintf(m_sHostIp, 255, "%s", hostIP);m_nHostPort = hostPort;snprintf(m_sDataBase, 255, "%s", dataBase);snprintf(m_sAccount, 255, "%s", user);snprintf(m_sPwd, 255, "%s", pwd);return InitDB();}bool CDataBase::InitDB(){if (m_bInitOk)return false;HRESULT hr;try{my_print("CDataBase::InitDB Start.");char sConnectStr[256] = {0};snprintf(sConnectStr, sizeof(sConnectStr)-1, "pConn-&gt;ConnectionString = &quot;driver={SQL Server};Server=%s,%d;DATABASE=%s;", m_sHostIp, m_nHostPort, m_sDataBase);hr = m_pConnection.CreateInstance("ADODB.Connection");if(SUCCEEDED(hr)){m_pConnection->ConnectionTimeout = 5;hr = m_pConnection->Open(sConnectStr, m_sAccount, m_sPwd, 0);}my_print("yibin test CDataBase::InitDB Success.");}catch(_com_error e){char sErrorMsg[256];snprintf(sErrorMsg, sizeof(sErrorMsg)-1, "数据库连接错误:%s", e.Description());my_print(sErrorMsg);return FALSE;} m_pADOSet.CreateInstance(__uuidof(Recordset));m_pADOSetAuto.CreateInstance(__uuidof(Recordset));m_bInitOk = true;return m_bInitOk;}bool CDataBase::Free(){if(m_bInitOk){if(adStateOpen == m_pConnection->State)m_pConnection->Close();m_pConnection.Release();if(adStateOpen == m_pADOSet->State)m_pADOSet->Close();m_pADOSet.Release();if(adStateOpen == m_pADOSetAuto->State)m_pADOSetAuto->Close();m_pADOSetAuto.Release();m_bInitOk = false;} else {return false;}return true;}bool CDataBase::ADOExecute(const char* sql){if ( m_pADOSet->State){m_pADOSet->Close();}try{m_pADOSet->Open(sql, m_pConnection.GetInterfacePtr(), adOpenStatic, adLockOptimistic, adCmdUnknown);return true;}catch(_com_error &e){char sErrorMsg[256];snprintf(sErrorMsg, sizeof(sErrorMsg)-1, "Execute SQL:%s ERROR:%s", sql, e.ErrorMessage());my_print(sErrorMsg);return false;}return true;}int CDataBase::DataWrite(const char* sql){intnRet = 0;charstr[1024] = {0};my_mutex_lock(m_pDbMutex);if (!m_bInitOk) {my_mutex_unlock(m_pDbMutex);return -1;}SwitchPath(str, sql);if (ADOExecute(str) != true) {Free();InitDB();if (m_bInitOk && ADOExecute(str) == true) {} else {nRet = -1;}}my_mutex_unlock(m_pDbMutex);return nRet;}//useint CDataBase::InsertMacInfo(_mac_info* _info){char sql[1024] = {0};snprintf(sql, 1023, "select Mac,SNCode,AddTime from IPCInfo WHERE Mac = '%s'", _info->sMacId);DataWrite(sql);if(!m_pADOSet->adoEOF)return -10;//addTimeSYSTEMTIME sysTime = {0};GetLocalTime(&sysTime);_snprintf(_info->sAddTime, sizeof(_info->sAddTime)-1, "%d-%02d-%02d %02d:%02d:%02d", sysTime.wYear, sysTime.wMonth, sysTime.wDay, sysTime.wHour, sysTime.wMinute, sysTime.wSecond);snprintf(sql, 1023, "INSERT INTO IPCInfo (Materiel, OrderNo, Model, Lens, SNCode, Mac, AddTime) VALUES('%s', '%s', '%s', '%s', '%s', '%s', '%s')", _info->sMateriel, _info->sOrderNo, _info->sModel, _info->sLens, _info->sSNCode, _info->sMacId, _info->sAddTime);return DataWrite(sql);}int CDataBase::GetMaxMacInfo(_mac_info* _info){char sql[1024] = {0};snprintf(sql, 1023, "select Mac,SNCode,AddTime from IPCInfo order by Mac desc");unsigned mac_calc[6] = {0};if (DataWrite(sql) != 0) {my_print("DataWrite Fail \n");return -2;} else {_variant_t Holder;if(!m_pADOSet->adoEOF) {Holder = m_pADOSet->GetCollect("Mac");snprintf(_info->sMacId, sizeof(_info->sMacId)-1, Holder.vt==VT_NULL?"":(char*)(_bstr_t)Holder);Holder = m_pADOSet->GetCollect("SNCode");snprintf(_info->sSNCode, sizeof(_info->sSNCode)-1, Holder.vt==VT_NULL?"":(char*)(_bstr_t)Holder);Holder = m_pADOSet->GetCollect("AddTime");snprintf(_info->sAddTime, sizeof(_info->sAddTime)-1, Holder.vt==VT_NULL?"":(char*)(_bstr_t)Holder);}}if(sscanf(_info->sMacId, "%02X%02X%02X%02X%02X%02X", &mac_calc[5], &mac_calc[4], &mac_calc[3], &mac_calc[2], &mac_calc[1], &mac_calc[0]) != 6){my_print("sscanf Fail \n");return -3;}//addTimechar szTime[32] = {0};char AddDate[32] = {0};char AddTime[32] = {0};SYSTEMTIME sysTime = {0};GetLocalTime(&sysTime);snprintf(szTime, sizeof(szTime)-1, "%d-%02d-%02d", sysTime.wYear, sysTime.wMonth, sysTime.wDay);time_t iTime = time(NULL);char sTime[32] = {0};struct tm* ptm = localtime(&iTime);_snprintf(sTime, sizeof(sTime)-1, "%4d-%02d-%02d", ptm->tm_year + 1900,ptm->tm_mon + 1, ptm->tm_mday);sscanf(_info->sAddTime, "%s %s", AddDate, AddTime);char SNPre[32] = {0};char SNDate[32] = {0};if(strcmp(szTime, AddDate) == 0){strncpy (SNPre, _info->sSNCode, 3);int year;int month;int day;char date[32] = {0};sscanf(AddDate, "%d-%2d-%2d", &year, &month, &day);_snprintf(date, sizeof(date)-1, "%d%02d%02d", year, month, day);int snNum = atof(_info->sSNCode+11)+1;memset(_info->sSNCode, 0, sizeof(_info->sSNCode));_snprintf(_info->sSNCode, sizeof(_info->sSNCode)-1, "%s%s%04d", SNPre, date, snNum);}else{strncpy (SNPre, _info->sSNCode, 3);snprintf(SNDate, sizeof(szTime)-1, "%d%02d%02d", ptm->tm_year + 1900,ptm->tm_mon + 1, ptm->tm_mday);snprintf(_info->sSNCode, sizeof(_info->sSNCode), "%s%s%s",SNPre, SNDate, "0001");}_snprintf(_info->sMacId, sizeof(_info->sMacId)-1, "%02X%02X%02X%02X%02X%02X",mac_calc[5], mac_calc[4], mac_calc[3], mac_calc[2], mac_calc[1], mac_calc[0]);return 0;}

1.5 结果展示