算是一个日志记录吧,初次操作sqlite源码,犯了一些低级错误
{
sqlite3* ppDb;
char* pKey = "cdee681";
sqlite3* ppDb;
char* pKey = "cdee681";
int result = sqlite3_open("C:\\Users\\hnf_YF\\Desktop\\com.tencent.mm\\MicroMsg\\d7a3a98b6aa3eb43bafc85d9dd999ce4\\EnMicroMsg.db", &ppDb);
//int result = sqlite3_open("C:\\Users\\hnf_YF\\Desktop\\testDB.db",&ppDb);
if (result == 0)
{
int n = sqlite3_key(ppDb,pKey,7);
//int result = sqlite3_open("C:\\Users\\hnf_YF\\Desktop\\testDB.db",&ppDb);
if (result == 0)
{
int n = sqlite3_key(ppDb,pKey,7);
char* errmsg;
int rc = sqlite3_exec(ppDb, "CREATE TABLE student( number varchar(10), name nvarchar(32))", NULL, NULL, &errmsg);
int rc1 = sqlite3_exec(ppDb, "INSERT INTO student VALUES('0001','Mary');", "INSERT INTO student VALUES('0002', 'Serina');", NULL, NULL, &errmsg);
int rc3 = sqlite3_exec(ppDb, "INSERT INTO student VALUES('0002', 'Serina');", NULL, NULL, &errmsg);
result = sqlite3_exec(ppDb,"select * from message",NULL,NULL,&errmsg );
int rc = sqlite3_exec(ppDb, "CREATE TABLE student( number varchar(10), name nvarchar(32))", NULL, NULL, &errmsg);
int rc1 = sqlite3_exec(ppDb, "INSERT INTO student VALUES('0001','Mary');", "INSERT INTO student VALUES('0002', 'Serina');", NULL, NULL, &errmsg);
int rc3 = sqlite3_exec(ppDb, "INSERT INTO student VALUES('0002', 'Serina');", NULL, NULL, &errmsg);
result = sqlite3_exec(ppDb,"select * from message",NULL,NULL,&errmsg );
int rc2 = sqlite3_decryptDB(ppDb, "C:\\Users\\hnf_YF\\Desktop\\EnMicroMsgdec.db");
if (result != 0)
{
printf("select error:%s\r\n",errmsg);
}
}
sqlite3_close(ppDb);
if (result != 0)
{
printf("select error:%s\r\n",errmsg);
}
}
sqlite3_close(ppDb);
}
SQL语句一定要写正确,
CREATE TABLE 忘记写E查问题好长时间,其次.db文件写路径一定不能忘记后缀。
这里还有一个疑问没有弄清楚,解密的时候,按道理sqlite3_open (),sqlite3_key(),之后解密即可,但是这种方式解密的文件是空的,必须中间再执行一个SQL操作语句。如上面一句 result = sqlite3_exec(ppDb,"select * from message",NULL,NULL,&errmsg )。该问题还需后续继续弄清楚。