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I had written a post (question and answer both, it's like an article) PDO tutorial for the beginners? which is about how to use pdo and why not use mysql_*.

It's like a reference post for those who are using MYSQL_* function and I have noted that ~8/10 are still using mysql_* function with php. That whole long thing takes approximately 6 hours to write and closed as not constructive. Is such kind of post are not nonconstructive on Stack Overflow? Am I supposed to not write or if I did delete it?

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Maybe Stack Overflow is not the place for tutorials of this specific kind, which fits a blog post somewhere more than Q&A form. Problem is you have great answer, but without a question. Like suggested in one of the answers here, it might fit as a tag wiki. – Shadow Wizard Jan 2 '13 at 7:56
I'm looking for a way to salvage the question, but I just don't see one. The answer is nothing short of fantastic. You did a great job, next time just make sure the question is not overly broad. I think what we'll do is merge, because your answer is epic. – Tim Post Jan 2 '13 at 9:09
up vote 7 down vote accepted

Despite the answer being very, very, very nice, the question sucks. It shows close to zero research effort and is subjective or lacks a definitive answer.

It is often recommended to instead use PDO. Can someone explain what it actually is and why should I be using it?

If I really need it, what do need to get started with it?

Those are not valid questions.

Have you considered adding your awesome answer to the /// tags instead?

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this question is edited as many time .. every edited question got down vote .. – NullPoiиteя Jan 2 '13 at 7:47
I'm sorry, what? – Time Traveling Bobby Jan 2 '13 at 7:48
edit history – NullPoiиteя Jan 2 '13 at 7:49
If you try to tell me that the downvotes are purely because the question was edited, then I'll have to disagree with you. – Time Traveling Bobby Jan 2 '13 at 8:03 i am telling that question was not properly so edited by other to make it clear and every time ... the edited question got downvote not because of edit – NullPoiиteя Jan 2 '13 at 8:06
Oh, you mean that every revision of the question got downvotes? That's because the question sucks. – Time Traveling Bobby Jan 2 '13 at 8:52
yup...exactly ..and now it got delete vote too..:( – NullPoiиteя Jan 2 '13 at 8:52
@NullPointer Don't worry about the delete votes. Even if it's deleted I'm going to merge it, I'm just making sure it's going to the best canonical question. – Tim Post Jan 2 '13 at 9:11
@TimPost thankyou tim.. its really very nice of you – NullPoiиteя Jan 2 '13 at 9:15

Even if you ask-and-answer, your question and answer are judged separately. Your question is not that good quality, I'm afraid. For one, it has quite a few grammar issues that makes it hard to understand.

If you want to post a self-answered post, you need to have a good question framed. Currently, you don't; it's more like you have an answer looking for a question.

It is often recommended to instead use PDO. Can someone explain what it actually is and why should I be using it?

This is rather broad, and subjective ("why should I be using it").

If I really need it, what do need to get started with it?

This is a getting-started post, which is generally NARQ/NC.

Also, don't delete your own closed questions. They will probably be undeleted, SE has the right to control how your content is displayed.

Maybe you can add your answer to a tag wiki instead?

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That is right: Question, and answer are judged separately. The fact the OP is answering her/his own question doesn't mean a question that should be closed as not a real question, or not constructive is not closed. – kiamlaluno Jan 2 '13 at 11:58

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