search
HomeDatabaseMysql TutoriallinuxCsqlite3mysql_MySQL

<code class="hljs perl">/* ********** gcc main.c -lsqlite3 -I/usr/include/mysql -L/usr/lib/mysql -lmysqlclient ************

SQLITE_OK = 0; 返回成功
SQLITE_ERROR = 1; SQL错误或错误的数据库
SQLITE_INTERNAL = 2; An internal logic error in SQLite
SQLITE_PERM = 3; 拒绝访问
SQLITE_ABORT = 4; 回调函数请求中断
SQLITE_BUSY = 5; 数据库文件被锁
SQLITE_LOCKED = 6; 数据库中的一个表被锁
SQLITE_NOMEM = 7; 内存分配失败
SQLITE_READONLY = 8; 试图对一个只读数据库进行写操作
SQLITE_INTERRUPT = 9; 由sqlite_interrupt()结束操作
SQLITE_IOERR = 10; 磁盘I/O发生错误
SQLITE_CORRUPT = 11; 数据库磁盘镜像畸形
SQLITE_NOTFOUND = 12; (Internal Only)表或记录不存在
SQLITE_FULL = 13; 数据库满插入失败
SQLITE_CANTOPEN = 14; 不能打开数据库文件
SQLITE_PROTOCOL = 15; 数据库锁定协议错误
SQLITE_EMPTY = 16; (Internal Only)数据库表为空
SQLITE_SCHEMA = 17; 数据库模式改变
SQLITE_TOOBIG = 18; 对一个表数据行过多
SQLITE_CONSTRAINT = 19; 由于约束冲突而中止
SQLITE_MISMATCH = 20; 数据类型不匹配
SQLITE_MISUSE = 21; 数据库错误使用
SQLITE_NOLFS = 22; 使用主机操作系统不支持的特性
SQLITE_AUTH = 23; 非法授权
SQLITE_FORMAT = 24; 辅助数据库格式错误
SQLITE_RANGE = 25; 2nd parameter to sqlite_bind out of range
SQLITE_NOTADB = 26; 打开的不是一个数据库文件
SQLITE_ROW = 100; sqlite_step() has another row ready
SQLITE_DONE = 101; sqlite_step() has finished executing

*************************************************************************************************** */

#include "DB.h"

gseMutex dbMutex=GSE_MUTEX_INIT;
static int IsUpdateAll = 0;
static int iDelCount = 0;
const int FREE_NUM = 1000;
static int needVacuum = 0;

int DBOpen(dbClass *sqlDB, const char *sqlName, char *localhost, char *user, char *password)
{
    if(sqlDB == NULL || sqlName == NULL || 0 == strlen(sqlName))
    {
        gseLog(L_ERROR,"NULL *p");
        return -1;
    }

    int ret = 0;
    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;

        localhost = NULL;
        user = NULL;
        password = NULL;

        char sqlPathName[64]={0};
        sprintf(sqlPathName, "%s", sqlName);
        ret = sqlite3_open(sqlPathName, (struct sqlite3 **)&(sqlDB->db));
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, Cannot open db: %s",ret,sqlite3_errmsg(sqlDB->db));
        }
        gseMutexUnlock(&dbMutex);
//      gseLog(L_INFO,"Open database");

    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        if(localhost == NULL || user == NULL || password == NULL)
        {
            gseLog(L_ERROR,"localhost user password is NULL");
            return -1;
        }

        char creatDbStr[64]={0};
        char useDbStr[64]={0};
        sprintf(creatDbStr, "create database %s", sqlName);
        sprintf(useDbStr, "use %s", sqlName);

        sqlDB->db= mysql_init(NULL);
        if (sqlDB->db== NULL) 
        {
            gseLog(L_ERROR,"sqlOpen Error 1 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
            exit(1);
        }
        if (mysql_real_connect(sqlDB->db, localhost, user, password, NULL, 0, NULL, 0) == NULL)
        {
            gseLog(L_ERROR,"sqlOpen Error 2 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
            exit(1);
        }
        ret = mysql_query(sqlDB->db, creatDbStr);
        if (ret) 
        {
            gseLog(L_ERROR,"sqlOpen Error 3 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
        ret = mysql_query(sqlDB->db, useDbStr);
        if (ret) 
        {
            gseLog(L_ERROR,"sqlOpen Error 4 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
            exit(1);
        }
#endif

    }
    else
    {
        return -2;
    }
    return ret;

}

int DBClose(dbClass *sqlDB)
{
    if(NULL == sqlDB || NULL == sqlDB->db)
    {
        return -1;
    }
    int ret = 0;
    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_close(sqlDB->db);
        gseMutexUnlock(&dbMutex);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        mysql_close(sqlDB->db);
#endif
    }
    else
    {
        return -2;
    }

//  gseLog(L_INFO, "Close database");
    return ret;
}

int DBCreate(dbClass *sqlDB, const char *tableName, char *creatValueStr)
{
    if(sqlDB == NULL || tableName == NULL || creatValueStr == NULL || NULL == sqlDB->db || 0 == strlen(creatValueStr))
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }

    char *errmsg = 0;
    int ret = 0;
    char createString[MAX_SQLSTR]={0};
    if(strlen(creatValueStr) >= 1)
        creatValueStr[strlen(creatValueStr) - 1]=&#39;\0&#39;;
    sprintf(createString, "create table %s(%s)", tableName,creatValueStr);
    //create table tb_cardId(cardID KEY, cardNum INT, endDate INT, password NVARCHAR(8))
    memset(creatValueStr, 0, strlen(creatValueStr));

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,createString,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, create table fail: %s", ret, errmsg);
        }
        else
            gseLog(L_INFO, "create table %s success.", tableName);
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;

        ret = mysql_query(sqlDB->db, createString);
        if (ret)
        {
            gseLog(L_ERROR,"sqlCreate Error  %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
#endif
    }
    else
    {
        return -2;
    }


    return ret;
}

int DBInsert(dbClass *sqlDB, const char *tableName, char *valuesString)
{
    if(sqlDB == NULL || tableName == NULL || valuesString == NULL || NULL == sqlDB->db || 0 == strlen(valuesString))
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;
    char sqlInsetTable[MAX_SQLSTR]={0};
    if(strlen(valuesString) >= 1)
        valuesString[strlen(valuesString)-1]=&#39;\0&#39;;
    sprintf(sqlInsetTable, "insert into %s values(%s)",tableName,valuesString);
    //insert into tb_cardId values(1,124343223,20130101,&#39;12345678&#39;);
    memset(valuesString, 0, strlen(valuesString));

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,sqlInsetTable,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR, "%s",sqlInsetTable);
            gseLog(L_ERROR,"ret = %d, inset table fail: %s",ret,errmsg);
        }
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlInsetTable);
        if (ret)
        {
            gseLog(L_ERROR,"sqlInsert Error 4 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
#endif
    }
    else
    {
        ret = -2;
    }
    if(1 == IsUpdateAll && 0 != ret)
    {
        rollBack(sqlDB);
        return ret;
    }

    return ret;
}

int DBUpdate(dbClass *sqlDB, const char *tableName, char *updateSetStr, char *updateWhereStr)
{
    if(sqlDB == NULL || tableName == NULL || updateSetStr == NULL || updateWhereStr == NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    if(strlen(updateSetStr) >= 1)
        updateSetStr[strlen(updateSetStr)-1]=&#39;\0&#39;;
    if(strlen(updateWhereStr) >= 3)
        updateWhereStr[strlen(updateWhereStr)-3]=&#39;\0&#39;;
    char *errmsg = 0;
    int ret = 0;
    char sqlUpdateTable[MAX_SQLSTR]={0};
    sprintf(sqlUpdateTable, "update %s set %s where %s", tableName, updateSetStr, updateWhereStr);
    //update tb_cardID set cardNum=1243423,password=&#39;323443&#39; where cardID=1 and endDate=2013;
    memset(updateSetStr, 0, strlen(updateSetStr));
    memset(updateWhereStr, 0, strlen(updateWhereStr));

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,sqlUpdateTable,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR, "%s",sqlUpdateTable);
            gseLog(L_ERROR,"ret = %d, update table fail: %s", ret, errmsg);
        }
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlUpdateTable);
        if (ret)
        {
            gseLog(L_ERROR,"sqlUpdate Error 4 %u: %s", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
#endif
    }
    else
    {
        ret = -2;
    }
    if(1 == IsUpdateAll && 0 != ret)
    {
        rollBack(sqlDB);
        return ret;
    }

    return ret;
}

int DBSearch(dbClass *sqlDB, const char *tableName, char *searchWhereStr, char (*returnValue)[SEARCH_MAXLEN])
{
    if(sqlDB == NULL || tableName == NULL || searchWhereStr == NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;
    char sqlSearchTable[MAX_SQLSTR]={0};
    int i;
    int nRow=0,nColumn=0;

    if(strlen(searchWhereStr) >= 3)
        searchWhereStr[strlen(searchWhereStr)-3]=&#39;\0&#39;;
    sprintf(sqlSearchTable, "select * from %s where %s",tableName,searchWhereStr);
    //select * from tb_cardID where cardNum=323435;
    memset(searchWhereStr, 0, strlen(searchWhereStr));

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        char **azResult;
        ret = sqlite3_get_table(sqlDB->db, sqlSearchTable, &azResult, &nRow, &nColumn,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR, "%s",sqlSearchTable);
            gseLog(L_ERROR,"ret = %d, search table fail: %s", ret, errmsg);
        }
//      gseLog(L_INFO,"row:%d column=%d",nRow, nColumn);
        for(i=nColumn;i<(nRow+1)*nColumn;i++)
        {
//          printf("azResult[%d] = %s\n", i, azResult[i]);
            if(azResult[i] != NULL && (*returnValue + SEARCH_MAXLEN*(i-nColumn)) != NULL)
                strcpy(*returnValue + SEARCH_MAXLEN*(i-nColumn), azResult[i]);
        }
        sqlite3_free_table(azResult);
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
        if(0 == nRow)
            return 1;
        else if(1 <= nRow)
            return 0;
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlSearchTable);
        if (ret)
        {
            gseLog(L_ERROR,"sqlSearch Error 4 %u: %s\n", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
        MYSQL_RES *result;
        MYSQL_ROW row;
        MYSQL_FIELD *field;
        int num_fields;
        result = mysql_store_result(sqlDB->db);
        num_fields = mysql_num_fields(result);
        while ((row = mysql_fetch_row(result)))
        {
            nRow++;
            for(i = 0; i < num_fields; i++)
            {
                if (i == 0) {
                    while(field = mysql_fetch_field(result)) {
                        printf("%s ", field->name);
                    }
                    printf("\n");
                }
                printf("%s  ", row[i] ? row[i] : "NULL");
            }
        }
        printf("\n");
        mysql_free_result(result);

        if(nRow == 0)
            return 0;
        else
            return nRow;
#endif
    }

    return -2;
}

int DBDelete(dbClass *sqlDB, const char *tableName, char *searchWhereStr)
{
    if(sqlDB == NULL || tableName == NULL || searchWhereStr == NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;
    char sqlDeleteTable[MAX_SQLSTR]={0};
    if(strlen(searchWhereStr) >= 3)
    {
        searchWhereStr[strlen(searchWhereStr)-3]=&#39;\0&#39;;
        sprintf(sqlDeleteTable, "delete from %s where %s", tableName, searchWhereStr);
        memset(searchWhereStr, 0, strlen(searchWhereStr));
    }
    else if(strlen(searchWhereStr) == 0)
        sprintf(sqlDeleteTable, "delete from %s", tableName);

    //delete from tb_cardID where cardID=1;
//  gseLog(L_DEBUG, "%s",sqlDeleteTable);

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,sqlDeleteTable,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, delete table fail: %s", ret, errmsg);
        }
        sqlite3_free(errmsg);
        needVacuum = 1;
#if 0
        if (iDelCount++ > FREE_NUM)
        {
            iDelCount = 0;
            ret = sqlite3_exec(sqlDB->db,"vacuum",NULL,NULL,&errmsg);
            if(ret != SQLITE_OK)
            {
                gseLog(L_ERROR,"ret = %d, vacuum fail: %s", ret, errmsg);
            }
            sqlite3_free(errmsg);
        }
#endif
        gseMutexUnlock(&dbMutex);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlDeleteTable);
        if (ret)
        {
            printf("sqlDelete Error %u: %s\n", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
#endif
    }
    else
    {
        ret = -2;
    }
    if(1 == IsUpdateAll && 0 != ret)
    {
        rollBack(sqlDB);
        return ret;
    }

    return ret;
}

int DBVacuum(dbClass *sqlDB)
{
    if(sqlDB == NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;
    if(sqlDB->type == SQL_SQLITE3 && 1 == needVacuum)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,"vacuum",NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, vacuum fail: %s", ret, errmsg);
        }
        else
        {
            needVacuum = 0;
        }
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
    }
    return ret;
}

int DBIndex(dbClass *sqlDB, const char *tableName, char *indexName, char *columnName)
{
    if(sqlDB == NULL || tableName == NULL || indexName == NULL || columnName == NULL)
    {
        gseLog(L_ERROR,"SQLITE_Index NULL *p"); 
        return -1;
    }
    int ret = 0;
    char *errmsg = 0;
    char sqlCreateIndex[MAX_SQLSTR]={0};
    sprintf(sqlCreateIndex, "create index %s on %s(%s)", indexName, tableName, columnName);
//  gseLog(L_DEBUG, "%s",sqlCreateIndex);

    if(sqlDB->type == SQL_SQLITE3)
    {
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,sqlCreateIndex,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, index table fail: %s", ret, errmsg);
        }
        sqlite3_free(errmsg);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlCreateIndex);
        if (ret)
        {
            printf("sqlIndex Error %u: %s\n", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
#endif
    }

    return ret;
}

int DBGetIdKey(dbClass *sqlDB, const char *tableName, const char *keyName, char (*returnValue)[ID_KEYLEN])
{
    if(sqlDB == NULL || tableName == NULL || keyName== NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;
    char sqlSearchTable[MAX_SQLSTR]={0};
    int i;
    int nRow=0,nColumn=0;

    sprintf(sqlSearchTable, "select %s from %s", keyName, tableName);

    if(sqlDB->type == SQL_SQLITE3)
    {
        gseMutexLock(&dbMutex);
        sqlDB->db = (sqlite3 *)sqlDB->db;
        char **azResult;
        ret = sqlite3_get_table(sqlDB->db, sqlSearchTable, &azResult, &nRow, &nColumn,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR, "%s",sqlSearchTable);
            gseLog(L_ERROR,"ret = %d, search table fail: %s", ret, errmsg);
        }
//      gseLog(L_INFO,"row:%d column=%d",nRow, nColumn);
        for(i=nColumn;i<(nRow+1)*nColumn;i++)
        {
//          printf("azResult[%d] = %s\n", i, azResult[i]);
            if(azResult[i] != NULL && (*returnValue + ID_KEYLEN*(i-nColumn)) != NULL)
                strcpy(*returnValue + ID_KEYLEN*(i-nColumn), azResult[i]);
            else
                break;
        }
        sqlite3_free_table(azResult);
        sqlite3_free(errmsg);
        gseMutexUnlock(&dbMutex);
        if(nRow == 0)
            return 0;
        else
            return nRow;
    }
    else if(sqlDB->type == SQL_MYSQL)
    {
#ifdef MYSQL_DEFINE
        sqlDB->db = (MYSQL *)sqlDB->db;
        ret = mysql_query(sqlDB->db, sqlSearchTable);
        if (ret)
        {
            gseLog(L_ERROR,"sqlSearch Error 4 %u: %s\n", mysql_errno(sqlDB->db), mysql_error(sqlDB->db));
        }
        MYSQL_RES *result;
        MYSQL_ROW row;
        MYSQL_FIELD *field;
        int num_fields;
        result = mysql_store_result(sqlDB->db);
        num_fields = mysql_num_fields(result);
        while ((row = mysql_fetch_row(result)))
        {
            nRow++;
            for(i = 0; i < num_fields; i++)
            {
                if (i == 0) {
                    while(field = mysql_fetch_field(result)) {
                        printf("%s ", field->name);
                    }
                    printf("\n");
                }
                printf("%s  ", row[i] ? row[i] : "NULL");
            }
        }
        printf("\n");
        mysql_free_result(result);

        if(nRow == 0)
            return 0;
        else
            return nRow;
#endif
    }

    return -2;
}

int DBExecSql(dbClass *sqlDB, const char *sqlStr)
{
    if(sqlDB == NULL || sqlStr == NULL)
    {
        gseLog(L_ERROR,"*db is NULL");
        return -1;
    }
    char *errmsg = 0;
    int ret = 0;

    if(sqlDB->type == SQL_SQLITE3)
    {
        sqlDB->db = (sqlite3 *)sqlDB->db;
        ret = sqlite3_exec(sqlDB->db,sqlStr,NULL,NULL,&errmsg);
        if(ret != SQLITE_OK)
        {
            gseLog(L_ERROR,"ret = %d, exec sql(%s) fail: %s", ret, sqlStr, errmsg);
        }
        sqlite3_free(errmsg);
    }
    else if(sqlDB->type == SQL_MYSQL)
    {

    }

    return ret;
}

int dbAddColumn(char *createString, const char *keyName, const char *keyClass)
{
    if(createString == NULL || keyName == NULL || keyClass == NULL)
        return -1;
    char tmpKey[128];
    sprintf(tmpKey, "%s %s,", keyName, keyClass);
    strcat(createString, tmpKey);
    return 0;
}

int dbInsertColumn(char *insertString, char *value)
{
    if(insertString == NULL || value == NULL)
        return -1;
    strcat(insertString,value);
    strcat(insertString,",");
    return 0;
}

int dbUpdateSet(char *updateSetStr, const char *setKey, char *setValue)
{
    if(updateSetStr == NULL || setKey == NULL || setValue == NULL)
        return -1;
    char tmpStr[128]={0};
    sprintf(tmpStr, " %s=%s,", setKey, setValue);
    strcat(updateSetStr, tmpStr);
    return 0;

}

int dbSearchWhere(char *searchWhereStr, const char *whereKey, char *whereValue)
{
    if(searchWhereStr == NULL || whereKey == NULL || whereValue == NULL)
        return -1;
    char tmpStr[128]={0};
    sprintf(tmpStr, " %s=%s and", whereKey, whereValue);
    strcat(searchWhereStr , tmpStr);
    return 0;
}

int setFlagIsUpdateAll(dbClass *sqlDB, int n)
{
    int ret= 0;
    IsUpdateAll = n;
    if(-1 == IsUpdateAll)
        ret = rollBack(sqlDB);
    return ret;
}

int getFlagIsUpdateAll()
{
    return IsUpdateAll;
}

int beginExclusive(dbClass *sqlDB)
{
    int ret=0;
    char *errmsg = 0;
    sqlDB->db = (sqlite3 *)sqlDB->db;
    ret = sqlite3_exec(sqlDB->db,"BEGIN EXCLUSIVE", NULL,NULL, &errmsg);    
    if(ret != SQLITE_OK)
    {
        gseLog(L_ERROR,"ret = %d, BEGIN EXCLUSIVE: %s", ret, errmsg);
    }
    sqlite3_free(errmsg);

    return ret;
}

int commitSQL(dbClass *sqlDB)
{
    int ret=0;
    char *errmsg = 0;
    sqlDB->db = (sqlite3 *)sqlDB->db;
    ret=sqlite3_exec(sqlDB->db,"COMMIT", NULL,NULL, &errmsg);
    if(ret != SQLITE_OK)
    {
        gseLog(L_ERROR,"ret = %d, COMMIT: %s", ret, errmsg);
    }
    sqlite3_free(errmsg);

    return ret;
}

int rollBack(dbClass *sqlDB)
{
    int ret=0;
    char *errmsg = 0;
    sqlDB->db = (sqlite3 *)sqlDB->db;
    ret=sqlite3_exec(sqlDB->db,"ROLLBACK", NULL,NULL, &errmsg);
    if(ret != SQLITE_OK)
    {
        gseLog(L_ERROR,"ret = %d, ROLLBACK: %s", ret, errmsg);
    }
    sqlite3_free(errmsg);
    return ret;
}

#ifdef MAIN_TEST
void main()
{
    char createValueStr[MAX_SQLSTR]={0};
    char insertString[MAX_SQLSTR]={0};
    char updateSetStr[MAX_SQLSTR]={0};
    char searchWhereStr[MAX_SQLSTR]={0};
    char *dbFileName="lkdb";
    char *tableName="tb";
    char *colList[]={"ID","names","sexsex"};
    int ret=0;

    timeLog();
    dbClass sqlDB;
    sqlDB.type = SQL_SQLITE3;
    DBOpen(&sqlDB, dbFileName, NULL, NULL, NULL);

//  sqlDB.type = SQL_MYSQL;
//  DBOpen(&sqlDB, dbFileName, "localhost", "root", "mima");
#if 1
    dbAddColumn(createValueStr, colList[0], PRIMAY_KEY);
    dbAddColumn(createValueStr, colList[1], NVARCHAR_32);
    dbAddColumn(createValueStr, colList[2], NVARCHAR_32);
    DBCreate(&sqlDB, tableName, createValueStr);

    dbInsertColumn(insertString, "1");
    dbInsertColumn(insertString, "&#39;y_jg&#39;");
    dbInsertColumn(insertString, "&#39;man&#39;");
    DBInsert(&sqlDB,tableName,insertString);
    dbInsertColumn(insertString, "2");
    dbInsertColumn(insertString, "&#39;lk&#39;");
    dbInsertColumn(insertString, "&#39;man&#39;");
    DBInsert(&sqlDB,tableName,insertString);
    dbInsertColumn(insertString, "3");
    dbInsertColumn(insertString, "&#39;fqq&#39;");
    dbInsertColumn(insertString, "&#39;woman&#39;");
    DBInsert(&sqlDB,tableName,insertString);
    dbInsertColumn(insertString, "4");
    dbInsertColumn(insertString, "&#39;xf&#39;");
    dbInsertColumn(insertString, "&#39;man&#39;");
    DBInsert(&sqlDB,tableName,insertString);
#endif
    dbUpdateSet(updateSetStr,"names", "&#39;xxxx&#39;");
    dbSearchWhere(searchWhereStr,"id","3");
    DBUpdate(&sqlDB,tableName,updateSetStr,searchWhereStr);
    DBClose(&sqlDB);

    timeLog();

}
#endif</code>

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
How do you alter a table in MySQL using the ALTER TABLE statement?How do you alter a table in MySQL using the ALTER TABLE statement?Mar 19, 2025 pm 03:51 PM

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

How do I configure SSL/TLS encryption for MySQL connections?How do I configure SSL/TLS encryption for MySQL connections?Mar 18, 2025 pm 12:01 PM

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

How do you handle large datasets in MySQL?How do you handle large datasets in MySQL?Mar 21, 2025 pm 12:15 PM

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)?Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

How do you drop a table in MySQL using the DROP TABLE statement?How do you drop a table in MySQL using the DROP TABLE statement?Mar 19, 2025 pm 03:52 PM

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

How do you create indexes on JSON columns?How do you create indexes on JSON columns?Mar 21, 2025 pm 12:13 PM

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.

How do you represent relationships using foreign keys?How do you represent relationships using foreign keys?Mar 19, 2025 pm 03:48 PM

Article discusses using foreign keys to represent relationships in databases, focusing on best practices, data integrity, and common pitfalls to avoid.

How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?How do I secure MySQL against common vulnerabilities (SQL injection, brute-force attacks)?Mar 18, 2025 pm 12:00 PM

Article discusses securing MySQL against SQL injection and brute-force attacks using prepared statements, input validation, and strong password policies.(159 characters)

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

Hot Tools

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),