$a = NULL; $c = 1; var_dump(isset($a)); // bool(false) var_dump(isset($b)); // bool(false) var_dump(isset($c)); // bool(true)
Hi I have the following expression. I\'m trying to say \"if the second field Is Not 开发者_如何学PythonNull\". Can you help.
well i don\'t understand why i\'m getting a Null Exception in my code: public View getView(int position, View convertView, ViewGroup parent) {
Say I have a simple function in MySQL: SELECT SUM(Column_1) FROM Table WHERE Column_2 = \'Test\' If no entries in Column_2 contain the text \'Test\' then this function returns NULL, while I would l
I\'m trying to build a string in Java which will be at maximum 3 long and at minimum 1 long. I\'m building the string depending on the contents of a integer array and want to output a null character
开发者_Go百科I\'m sure I\'ve missed something here. With a certain project I need to check if a string is empty or null.
I’m not a SQL DBA and I’m having an issue.We run MS SQL 2008 server and just upgraded it from MS SQL 2000.I’m trying to run a query created for the DB in MS SQL 2000 and use the results for our mai
I have a very simp开发者_Go百科le method: public int getScore() { return game.gameWindow.userBestScore;
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current for开发者_运维技巧m.
I\'ve made a separate class to launch and intent as the class I would like to launch the intent from is a thread and does not inherit from activity and would not launch startActivity. Every time I lau
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