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MySql Table Insert if not exist otherwise update

... if an existing row is set to its current values. If you specify the CLIENT_FOUND_ROWS flag to mysql_real_connect() when connecting to mysqld, the affected-rows value is 1 (not 0) if an existing row is set to its current values... ...
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Why is argc not a constant?

...esting... I looked up the prototype in the header, and it has char* const* ___argv there, but the interface actually adheres to const char **. Such confusion. I had confused the precedence of the [] and the * with respect to the const. My apologies. – Joe Z ...
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What is an xs:NCName type and when should it be used?

...Name with the regex: "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_][\\w\\.\\-\\d]*". That means. the value should start with a letter or underscore and then contains of words, dots, dashes, underscores, digits. You can try it at: regexr.com – Naxos84 ...
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Block Comments in Clojure

... A word of warning -- the (comment) macro expands to nil. Use #_ to comment a single form, or #_(comment ...) to comment multiple forms without inserting a nil. – treat your mods well Dec 18 '11 at 2:55 ...
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How do I provide JVM arguments to VisualVM?

I'm using VisualVM from JDK 1.6.0_26 to profile a Java webapp running under Tomcat, but VisualVM often tells me that it doesn't have enough memory to take a snapshot, and to use the -Xmx switch to provide more memory to Netbeans. The problem is, I'm running VisualVM outside of Netbeans, so how can I...
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How to run a Runnable thread in Android at defined intervals?

... You may define boolean variable _stop, and set it 'true' when you want to stop. And change 'while(true)' into 'while(!_stop)', or if the first sample used, just change to 'if(!_stop) handler.postDelayed(this, 1000)'. – alex2k8 ...
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I ran into a merge conflict. How can I abort the merge?

... you to use the "theirs" merge strategy: git pull --strategy=theirs remote_branch But this has since been removed, as explained in this message by Junio Hamano (the Git maintainer). As noted in the link, instead you would do this: git fetch origin git reset --hard origin ...
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Java SimpleDateFormat(“yyyy-MM-dd'T'HH:mm:ss'Z'”) gives timezone as IST

... edited Jan 22 '15 at 3:26 AZ_ 34.4k2828 gold badges150150 silver badges197197 bronze badges answered Oct 1 '13 at 11:41 ...
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What does FETCH_HEAD in Git mean?

... FETCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository. git pull first invokes git fetch, in normal cases fetching a branch from the remote; FETCH_HEAD points to the tip of this bra...
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Best way to convert an ArrayList to a string

...al #14; //Method java/lang/StringBuilder."<init>":()V 68: aload_2 69: invokevirtual #15; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder; 72: aload 4 74: invokevirtual #15; //Method java/lang/StringBuilder.append:(Ljava/lang/String;)...