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Questions tagged [guid]

A GUID (Globally Unique IDentifier) is a unique reference number used as an identifier in computer software.

A GUID (Globally Unique IDentifier) is a unique reference number used as an identifier in computer software. It is Microsoft's implementation of the UUID standard.

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How to convert a String to a GUID

I need to convert a String to a GUID, there are lots of tutorials online about converting one to a UUID but not to a GUID. I am working in Java. When I use a UUID, I get the following error: ERROR: operator does not exist: character varying =…
K. Martin
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How to have partial incremental synchronizations based on a GUID?

I need to synchronize an SQL Server database to Oracle through an Oracle Transparent Gateway. The synchronization is performed in batches, so I need to get the next set of data from the point where I left off. The problem I'm having is that the only…
Gonçalo Veiga
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Using oracle sys_guid with column that has records

I have a situation that I'm updating the code of an application that generates the primary code (GUID key) From the code, I want to generate this key from database using sys_guid function. My question is: The column already contains values and is…
Mohammad
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Why GUID is replaced by string at generation of proxy class for wsdl

I have a web service with parameters of type GUID:
CyClop
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Find differences between list of MongoDB UUIDs and List of SQL Guids

Background: I have a source MongoDB database containing transactional data in documents and these have the standard "_id" field as an index. I also have an SQL SSRS Reporting database for this same transactional data that I create data extracts…
Mike
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How to generate a GUID

I need to generate a Guid on a PLC, this means: Build it yourself. How can I do that? I have found a guide on guid.one but I still have some questions about the timestamp: If you can't get a UTC time, local will do but remember to change the clock…
Wim
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How many digits of randomness does GUID provide?

I know GUID is not random and that should not be used for security purposes, but how many random digits does it provide ? (To which extent can it be used as source of entropy for any task that does not require security) Of 32 digits in example,…
UberFace
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Guid substring collision probability?

How would one calculate the probability that two Guids start with the same N number of characters? Situation: We are considering using the first n characters from a guid as a cosmosdb collection partition key. We don't want to use the entire guid…
cobolstinks
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Multiple query string parameters are not binding in .net core create action only

[HttpPost] [ValidateAntiForgeryToken] public async Task Create(string param1, string param2, [Bind("a,b,c")] object x) I am getting null values for param1 & param2 on form…
Abdul QADIR
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SQLite GUIDs not returned on Mac

I have a SQLite v3 database, using GUID's as row identifiers. Something strange is happening when I query the table on a mac, it returns strange ASCII code in the ID Column where the GUID is supposed to be... See image:…
FaNIX
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What is the best way to link a child table to multiple parent tables?

I am designing a SQL Server database with multiple entities, such as people, families, companies, schools, etc, each with a wide variation in columns. I'm struggling with the fact that many of these entities need identical child tables, such as…
A. Troyer
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EF6 Unrecognized Guid format. while trying to find in set

I'm facing problem with 'Unrecognized Guid format.' while trying to find the data in the set. Application work with .Net 4.5 and EF6. I'm facing this issue since we switch from MsSql to MySql Db. Entities look like: public abstract class…
Eugen Khudoliiv
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Different GUID formats for Xrm.Page.getAttribute(...).getValue[0].id

I want to read two GUIDs in my web-resource to compare them. Both lookup fields have the same related type and an onChange listener attached. If I populate the header lookupfield first and the body lookup field second, I get the following result…
Michelé
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In WordPress database why is the GUIDs different than live URLs?

For example, when I query for item "OSr1" from wp-posts, I get a post with this GUID: http://www.XZY.com/?post_type=data-sheet&p=2439 But the live link of the same item is like this: http://www.XZY.com/wp-content/themes/xzy/pdf/OSr1.pdf When I enter…
Tom M
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How to generate a UUID in embedded C

I want to generate guids to name a set of different files. The main restriction I am having is the fact that I need to implement this in an embedded microcontroller with an RTOS. The main UUID/GUID libraries i've found are linux/windows based, but…
Asan
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