I'm trying to open the SQLite db file but it is throwing "unable to open database file" exception

I'm trying to open the SQLite db file but it is throwing "unable to open database file" exception

For the 3 underlined words or phrases above, please provide enough details that we may either be astounded that it does not work or see that it should not be expected to work per the API docs.

The issue has been resolved.

Can you please tell me that we can open and write the encrypted sqlite db file or do we need to decrypt the db file in order to write or update on that file?

Can you please tell me...

No, we cannot tell you that, because you have given us no context with which to debug your problem. We do not know...

1. Who you are.
2. What version of SQLite you are using.
3. What kind of encryption you are using (SEE or some third-party knock-off)
4. What OS you are using.
5. What programming language you are developing in
6. What you have tried so far that does not work.

In short, we know practically nothing about what you are doing. We are unable to read your mind. Hence, we are unable to answer your question. Sorry.

In short, we know practically nothing about what you are doing. We are unable to read your mind. Hence, we are unable to answer your question. Sorry.

This is happen so often, I have often wondered what causes it. My current hypothesis, after discarding the most obvious one (people are just plain stupid) as likely wrong and also counterproductive, I now think it is perhaps because many people don't appreciate the vastness and diversity of the software universe. Rather, having a fairly limited experience (in terms of variety, not quantity) with computers, they believe that everybody uses computers in very similar ways. So if you know only one way to open an SQLite database, you assume that this is how everyone does it. And then providing more detail seems redundant. And which OS? Well, if you only have experience from on OS, even if you are aware that other OSes exist, you might well believe that the difference is only skin deep, that underneath they are all the same. And programming language, what is that? The language of computers, of course! What!? There are several??

Understanding other people's perspective can be hard. Just the other day, I had given a fellow Mac user some suggestions for dealing with a problem. What I didn't realize, is that this person had no idea that something like Terminal.app even existed on his computer, much less what it might possibly be used for. So my advice just caused further confusion.

Oh, well. It is what it is, I suppose. Sorry about the digression. I feel better now. :-)

There are a lot of reasons why this happens: non-technical people are assigned technical tasks that they are not trained to handled. But, to keep a job, they accept the challenge and have no idea what to do, thus posts like this one take place. Also, these may be newbies. I remember when I started using newsgroups back in the day. I would start with something like, "my python program will not work." And some folks will reply back with questions like, "what type of errors you are getting,...".

We, as the technical folks, should right away start with the proper questions: what version of SQLite are you using? What OS? What programming language? Etc.

These questions, perhaps, train them in the way they should go about it next time.

What really, really bothers me is the anonymous posters. Those I dislike.

I feel better now. :-)

There is a wide range of anonymous,...

Yes, I know. I see their posts all the time:-)

The problem with anonymous post, from my perspective is: I don't trust their input. Their post may be excellent and right on point, but because they are unknown, the expertise weight of the post is very light (IMO). The way I see it: why not open an account? If it was really hard to open an account, then I would understand. But, it's not. If there is an interest in the software and continuous posting, then, the least one can do is open an account and be known by the community. I should say that if you are only looking for a quick answer and never posting again, then, I can understand.

I have been doing SQLite stuff since 2006. I know and recognize the names of most of the folks here. When they post, I stop and read them to gain knowledge. When an anonymous post comes up, I don't give it much thought.

However, I am going to say that staying anonymous is better than going out there and mistreating people. :-)

Apologies for this last post...

summary: ... For people offering information/help, take good advice from any source based on the merit...

Good points, indeed. And to add, I have used and learned SQLite wisdom from anon posts also. But, wouldn't it be nice to say, "Man, I've learned this wonderful SQL/SQLite trick from 'John-The-Baptist'". Instead of saying, "Man, I wish I'd known 'the name' of that person that I learned this wonderful SQL/SQLite trick". And by the way, in my posts I used "I", and "IMO", which just makes it merely my point of view. Not the whole SQLite society. I, making myself a member of that society, have very different thoughts than all of them, as you can tell. :-). One of these crazy thoughts is that I know who is the author of the Bible. :-)

I now think it is perhaps because many people don't appreciate the vastness and diversity of the software universe. Rather, having a fairly limited experience (in terms of variety, not quantity) with computers, they believe that everybody uses computers in very similar ways.

Good hypothesis, and one that is well suited to explaining how people are who work entirely within one of the big ecosystems (especially C++, Java, C# and Python). Their work is sufficiently all-encompassing that they don't even see the edges. They've possibly heard that people use other things, but don't really think that people do that for real, honest jobs because nobody that they know does that. They've their own package distribution systems, their own help and community websites, their own recruiters, everything. It's vertical integration extended into real social space (social media is just an extension of this).

Not that there's much we can do about it, except ask the sensible questions when such things arise. Asking questions (and getting answers) is one of the easier ways of reading minds.

Can you please tell me that we can open and write the encrypted sqlite db file or do we need to decrypt the db file in order to write or update on that file?

Yes. You can either open the encrypted file directly and update it or you can decrypt the file in order to read and update it.

In other words, the answer to you question "Am I dead or alive?" is "Yes", you are indeed either dead or alive.

I was trying to open it in a vb.net program language. Actually I'm creating a sqlite connection string with password and opening it. And the file which I'm trying to open is .db and using windows OS.

Here whenever m giving the file in quotes like "Datasource={0}\test.db;", it creating a file with this {0} name as white noise but it is not encrypting the file which is at the directory path.

System.Data.SQLite.SQLiteExecuteType.NonQuery, "Data Source={0};", System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "test.db"))

So this is the line of code which is creating {0} file as white noise one instead of encrypting my actual test.db in the base directory.

Composite formatted strings aren't 'standard' in vb.net. Only certain functions use them. Eg console.writeline .. ie,

Console.WriteLine("Name = {0}, hours = {1:hh}", name, hours)

Thats why the {0} isn't being interpreted in your datasource - its probably just expecting a string.

You can use interpolated strings though, which are a lot more readable.
https://learn.microsoft.com/en-us/dotnet/visual-basic/programming-guide/language-features/strings/interpolated-strings

Its the same theory, except you put the variable in place of the numeric token, so in the above console example, it would be

Console.WriteLine($"Name = {name}, hours = {hours:hh}"

For your example, it would be

$"Data Source={System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "test.db")};")