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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?

...ger numbers, which might cause trouble if you're converting a table. Personally I'd rather have the query error out up front and know that some of my "integers" are screwy (You can also select with E'\\d{6,}$' first to make sure). – Anthony Briggs May 5 '17 at ...
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git rebase fatal: Needed a single revision

... The latter should actually work - origin in ref context is interpreted as origin/HEAD. I've seen repositories end up not knowing what origin/HEAD is, though... – Cascabel Jan 25 '11 at 20:15 ...
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Showing commits made directly to a branch, ignoring merges in Git

...using git, is there a way to show commits made to a branch, while ignoring all commits that were brought in by merging? 3...
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Are “elseif” and “else if” completely synonymous?

...tom line is that both would result in exactly the same behavior. Essentially, they will behave the same, but else if is technically equivalent to a nested structure like so: if (first_condition) { } else { if (second_condition) { } } The manual also notes: Note that elseif and els...
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How to add a touch event to a UIView?

...ler) UITapGestureRecognizer *singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)]; [self.view addGestureRecognizer:singleFingerTap]; //The event handling method - (void)handleSingleTap:(UITapGestureRe...
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Solr vs. ElasticSearch [closed]

.... No separate project required. Replicas are near real-time too, which is called "Push replication". ElasticSearch fully supports the near real-time search of Apache Lucene. Handling multitenancy is not a special configuration, where with Solr a more advanced setup is necessary. ElasticSea...
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How can I make Array.Contains case-insensitive on a string array?

...ure has very few properties that make it useful for comparison." In almost all cases where you don't want a culture-specific comparison (CurrentCulture), you should be using Ordinal rather than InvariantCulture. – bdukes Jul 25 '11 at 16:58 ...
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Newline in JLabel

... @NitinBansal Actually it's recommended in the new version of HTML to leave it as <br>. It's called a void tag. <br /> still works for backwards compatibility. – gsingh2011 Apr 27 '12 at 3:50 ...
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Update a local branch with the changes from a tracked remote branch

...ch track a remote branch?" and "Git: Why do I need to do --set-upstream-to all the time?" ) git branch -f --track my_local_branch origin/my_remote_branch # OR (if my_local_branch is currently checked out): $ git branch --set-upstream-to my_local_branch origin/my_remote_branch (git branch -f --tra...
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Redefining NULL

...ull pointer as a boolean must be false. This can be a bit awkward if you really do want a zero address, and NULL is not the zero address. Nevertheless, with (heavy) modifications to the compiler and standard library, it's not impossible to have NULL be represented with an alternate bit pattern whil...