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Aug 8, 2008 · What are your thoughts? Should tables have primary keys? Or is it ok to not have any clustered indexes if there are no sensible columns to index ...
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Can you have a table without a primary key?
Can a table have 0 primary keys?
Do all tables have to have a primary key?
How do you check if a table has primary key or not?
Jun 14, 2014 · I'd personally key on unique, auto-increment row id and create secondary indexes on the combination of columns that I'd need to search on, for ...
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May 7, 2015 · Primary keys are not required, and your table will work just fine. Here are some reasons why I almost always use primary keys.
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Jul 15, 2013 · I'm now trying to create a simple table, it stores end of day prices for a list of stocks, so it has three columns: stock ticker, date and price ...
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Oct 28, 2012 · So the question is: Is it possible to create a relation that will have a composite primary key that contains the table name in it? AuditRecord ...
Aug 5, 2013 · Your query is: INSERT INTO authorization_codes(book_id, auth_code, unpaid) SELECT edition_nid, 'FLT9950526', 1 FROM catapult.editions WHERE ...
Dec 25, 2015 · You can try setting public $incrementing = false; on your model so eloquent doesn't expect your primary key to be an autoincrement primary ...
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Mar 31, 2011 · No. The primary key does a lot of stuff behind-the-scenes, even if your application never uses it. For example: clustering improves ...
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Aug 13, 2013 · My question is simply: How can I further optimize this table/query to increase the speed at which results are fetched? mysql · sql · performance ...
Mar 19, 2020 · An issue is not a place to ask questions. ... bigint(20) NOT NULL, PRIMARY KEY (`id ... tables. We did use a shorter account name and encountered ...