You might have a “person” table. I dislike any T-SQL that requires square brackets around names, but I have renamed a Users table to the singular, forever sentencing those using the table to sometimes have to use brackets. I’ve documented these database conventions to be used with Oracle databases. In any case, you presented one side well, and you provided links to the other side, and you weren’t too zealous about the “Right Way”. So, let’s move on to what I think are good Oracle database table naming conventions. I did not see this clearly articulated in any of the previous answers. I would have named the bag apples. The exception to this is if you’ve reached Oracle’s 30 character limit for table names. So creating an Employee class, without explicit mapping, would generate an Employee table by default. I suspect they don't get, as you point out, the difference between an entity and a collection of them. I personaly prefer to use plural names to represent a set, it just "sounds" better to my relational mind. I wish there were better IDE support for complicated SQL. I think I tend to agree with this. With regards to database table and column names, I lean towards a certain convention: A database table is a set, and every row is an object. The alternate discussions about proper language in reference to sets are just philosophical and are obscuring the real point. a table of "colleges" can contain 0 or more collegues, My conclusion is that either is fine but you have to define how you (or people interacting with it) are going to approach when referring to the tables; "a x table" or a "table of xs". Anyone browsing a db for objects can quite easily tell a table from a view, but if I have a table named tblUsers that for some reason I decide to restructure in the future into two tables, with a view unifying them to keep from breaking old code I now have a view named tblUsers. Over internet you can read a lot about tables naming standards. > A table is, therefore, a container. Good example of a pitfall of prefixing object names with a 'type' qualifier! "Should the names of tables be singular or plural?" A class is the framework to describe the properties and behaviour OF a specific type. I can understand the argument for singular table names, but to me plural makes more sense. The fact that there are irregular plurals in English like mouse ⇒ mice and sheep ⇒ sheep. Software Development. ", hence improving productivity. That doesn’t imply that it has more than one apple. Singular Table Name Convention in Entity Framework Core v2. Is there a convention to name collection in MongoDB? When naming a table, it is a good idea to use a collective name or ‘object class term’ for the entity if one exists ( such as Employee, Cost, Tree, component, member, audience, staff or faculty) but use the singular rather than the plural form where possible. Regarding adding “_table” to the end of the table name, I don’t think this is necessary. That means I use camelCase. If there is no table naming convention, then choose singular. Objects can have irregular plurals or not plural at all, but will always have a singular one (with few exceptions like News). A relational database table is by definition a heading (i.e. You wouldn't have table names for each column, why do you like typing so much. @Christopher, if the raison d'être of the bag is to hold apples and only apples, then it is an "apple bag" , regardless of whether it contains 1 apple, 100 apples or no apples. A class is similar to a database relation. These SQL table naming conventions can be applied across any relational database. (I believe the rational behind that policy is that it make it easier for ORM code generators to produce object & collection classes, since it is easier to produce a plural name from a singular name than vice-versa). So, in general, it’s a good idea to avoid using reserved words for table names in SQL. eyeglasses (Aesthetic and Order). In other words, when I think about entities and how they are related I think of relations in singular, but of course, when I think of the entities in collections or sets, the collections or sets are plural. But there will always be those few exceptions and even in this case it looks fine as UsersInRoles.Username. I agree. This matters because the objects are stored in the database in the same case, so naming them using camel case will be lost. Not necessarily that it's a bad thing to rename tables, but standardization is just that; a standard -- this database may already be "standardized", however badly :) -- I would suggest consistency to be a better goal given that this database already exists and presumably it consists of more than just 2 tables. But at the same time you could argue that unlike in object oriented programming, a table is not an instance of its records. I personally love it. Secondly, after I started using plural table names (because that is the standard where I work), it didn’t make sense to use a singular prefix with a plural table name. Should table names in general be singular or plural when creating a database table structure? One, you normally wouldn't use the table names and would write 'select ID FROM OrderHeaders WHERE Reference = 'ABC123' because you are 'Selecting all IDs from OrderHeaders where something is true' but if you had to use table names because of a join or whatever, you would use an alias like so... 'select OrderHeader.ID FROM OrderHeaders as OrderHeader WHERE OrderHeader.Reference = 'ABC123'. The next word after the “tbl” prefix should be the table name. Total vote count for singular is much higher than total vote count for plural. References: Sometimes you just have to make life easier to everyone instead of imposing your personal preferences. In object oriented design it just doesn't make sense to deviate from OO naming conventions at the DB level to accomodate a DAL generation tool or any model generated from the DB (design for reverse engineering? AppleBag is not a great example, IMHO. The biggest reason why I prefer singular table names instead of plural table names when it comes to database table naming conventions is that it ensures consistency between all areas of your application. Check out the comments on SubSonic's convention recommendation. And a container is a single object. I use plural table names. Why Does the Ukulele Have a Reputation as an Easy Instrument? using the metadata. I used to prefer plural but have come to realize that in the global scheme of development and maintainance, singular is the way to go. Complete the name with the primary entity stored in the table in a singular form. If it were a database, I'd call it the "Sock" table. Has any such name grabs happened yet? (no matter what ORM you may be using). Hi Ivan, an array is similar to a table in that it can contain zero, one, or many objects. Description: more and more ORM and systems such as Rails or CakePHP supports or strongly recommend to respect a naming convention where tables are plural as they contains many rows and foreign keys are singular as they point to one row. Of them it 's been converted into an object name of sources isn ’ t think of a side-comment does... Examples of singular ( left side ) and plural over the years do, or 'singular_id ' to... Read: 1 ): everything is singular table names in academia the! The only thing confuses me is why would sql table name convention singular or plural call a table you. Create it without an error or get incorrect results valuable characters, it ’ s than! Store zero, one, half-a-dozen of the tables as a … Complete the name that definition designate... 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