Ugh, no, deleting an issue via SQL can take hits on several tables, and often multiple ones. You have to be extremely careful to only hit one issue, and even more careful to check that you get the whole thing.
How did you do this "accidental delete"? If it was done properly in the UI or over REST, then the code should not have "corrupted" anything, it will have deleted it and severed any links to other issues.
Even if this "corruption" just means "it's gone and things have changed" rather than an actual corruption, you still need to know exactly what is wrong and missing, so you can work out what needs doing to fix it (deleting with SQL is almost certainly going to be the wrong answer)
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