Mar 22, 2009 · Yes, there are good reasons. You can have semantically meaningful true keys, rather than articificial identity keys. Also, it is not a good idea ...
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Does a table need a PK?
Should each table in a relational database must have a primary key True or false?
What happens if a table does not have a primary key?
Why do databases have tables?
May 6, 2009 · Technically, you can have tables without a primary key, but you'll be breaking good database design rules. Share.
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Sep 1, 2012 · If the rows are unique, you can have a two-column primary key, although maybe that's database dependent. Here's an example: CREATE TABLE ...
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Jul 12, 2016 · I've run into a problem where I need to regularly insert records into a table, but the integer primary key column is not an identity column. If ...
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Mar 13, 2013 · You should always have a primary key. Having a primary key will allow SQL Server to physically store the data in a more efficient manner.
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Dec 27, 2012 · For a primary key to be an Integer, is easier to manage, and makes its index more effective. As you know, while the keys are auto indexed, the ...
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Yes, there are good reasons. You can have semantically meaningful true keys, rather than articificial identity keys. Also, it is not a good idea to have a ...
... https://stackoverflow.com/questions/6430/how-to ... any-negative-impacts-when-using-mod-rewrite</loc> ... database</loc><lastmod>2015-10-08</lastmod></url> ...
Feb 8, 2017 · Some tables don't need a PRIMARY KEY, because they are never going to be updated, and might only have a tiny set of data in them (e.g. lookup ...
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Jan 7, 2011 · a table that just collects data (for persistence purposes) to be queried itself and not related to other tables where the other tables needed to ...
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