uniqueidentifier

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Good Hash function? (32-bit too small, 64-bit too large)

I need to generate a hash value used for uniqueness of many billions of records in Java.Trouble is, I only have 16 numeric digits to play with.In researching this, I have found algorithms for 32-bit h[详细]

2023-02-23 00:12 分类：问答
PHP random unique identifier

In the construction of our booking system client can view their bookings online. At the moment the URL o开发者_如何学运维f their page is created as a sequential number. So /booking1, /booking2, /booki[详细]

2023-02-20 21:08 分类：问答
Do Unique Instance Session ID's Live Inside Of Programs?

I am looking for a variable that I can just call from C#, like Environment.Username that is unique to the instance of a particular application (like a timestamp for when the application was initially[详细]

2023-02-19 15:06 分类：问答
Java: Non MAC-based Unique Computer ID

Searched all over, but haven\'t been able to find a solution.I need to create a (semi) unique ID of a computer for a product key system.It can\'t be derived from the MAC address for several reasons:[详细]

2023-02-17 06:20 分类：问答
Pros/Cons of and ways to implement globally unique identifier in relational database?

Regarding the first part of my question: I was recently asking myself what are the benefits and trade-offs of having a unique identifier for certain tables in a relational database. Just as an example[详细]

2023-02-15 20:49 分类：问答
Creating a unique filename from a list of alphanumeric strings

I apologize for creating a similar thread to many that are out there now, but I mainly wanted to also get some insight on some methods.[详细]

2023-02-13 14:39 分类：问答
JavaScript Unique Browser Id

is there anyway to create a unique ID for a browser within javascript? Im not talking about an ID that is random everytime it is generated but an ID that is unique to the browser it is generated in b[详细]

2023-02-09 21:03 分类：问答
How to manage unique code in mobile application corresponding to each application user?

Please开发者_开发问答 recommend any method/best practice which takes unique data from phone, munches it and always produces the same key for given user on his/her device.1 You capture IMEI.[详细]

2023-02-09 09:40 分类：问答
Android, want to reference Bitmaps in array using strings, programatically

I\'m looking for a nice programatic way I can use to refer to the im开发者_StackOverflowages in my Bitmap[].[详细]

2023-02-09 02:31 分类：问答
how to recognizing the device from browser and retrieve unique id

I want to know if it\'s possible to do the following using an android device. The user is on his android device browsing a site using the native browser. 开发者_运维问答When the user clicks on an pa[详细]

2023-02-08 02:20 分类：问答