While it is readily documented that NULLs take up only 1 bit in the postgresql tuple header for the row, how much space does NULLs take up in the INDEX of a nullable column (not the tup开发者_如何学编
开发者_如何学PythonI have a function that takes in a number of parameters.. it then does a db insert.
I am new to Derby and I noticed that I face similar problems as when using the DB2 RDBMS as far as null values are concerned. The Derby documentation states, that a null value must have a type associa
If I have a class that I want to accept an optional logger to log debug information: public class A { private Logger logger ;
I have the following: var NewCount = document.getElementById(\'MainContent_gv_NewCount_\' + rowIndex).value;
I see that some examples 开发者_Go百科uses select statement with null. When to use: select null from etc. etc.?
This question already has answers here: Closed 12 years ago. Possible Duplicate: Can you unset() many variables at once in PHP?
i\'m confusing about nil in objective-C, cause apple said that it\'s ok to send a message to a nil object.
I get a bad access (objc_msgsend) when calling this line of code: self.currentGameTeam = nil; Where \"currentGameTeam\" is defined in the interface for a class called \"MCState\" as:
I keep getting a \"Value cannot be null.\" Ive tried changing several things but just cant figure it out any help.
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