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Sep 25, 2013 · 1. I am trying to figure out how to use the count function in order to count how many subcategories each of my categories have. My original query is as follows (where name = the category name): select . catid, name, pcatid. from category. I simply want to add a column (which is not included in my DB anywhere) called 'SubCategoryCount'.
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SELECT a.catid,a.NAME,a.pcatid,COUNT(b.pcatid) SubCategoryCountFROM category a...But the num_products field is 4 for every row, which not-coincidentally is the total number of products. Alternatively I can do something like this: SELECT c.name, c.id, c.parent_id, count(p.id) AS num_products FROM categories AS c LEFT JOIN category_product AS cp ON c.id = cp.category_id LEFT JOIN products AS p on p.id = cp.product_id GROUP BY ...
- General Conventions
- Categories For Articles
- Project Categories
- Before Creating A New Category
- Choosing A Name For The Category
- Creating The Category
- Category Description
- Additional Considerations
- Articles
- Files
Names of topic categories should be singular, normally corresponding to the name of a Wikipedia article. Examples: "Law", "France", "Hillary Clinton".Names of set categories should be plural. Examples: "Writers", "Villages in Poland".Note that in many instances a topic category and a set category have similar names, the topic category being singular and the set category plural. For example, Opera is a topic category (containing...Do not write the category structure in names. Example: "Monarchs", not "People – Monarchs". This includes creating categories that are subpages of other categories.Standard article naming conventions apply; in particular, use sentence case, do not use title case. Specifically, do not capitalizeregular nouns except when they come at the beginning of the catego...When naming, use words and phrases which exist in verifiable reliable sources (particularly for technical subjects), so that those sources may be used to support inclusion of information.Avoid abbreviations. Example: "Category:Military equipment of World War II", not "Category:Military equipment of WW2". However, acronyms that have become the official, or generally used, name (such...Avoid subjective adjectives such as famous, large, or beautifulin category titles.Categories used for Wikipedia administration, are disambiguated by prepending with the word "Wikipedia" (no colon) if this is needed to prevent confusion with content categories. For example, Categ...All WikiProject categories should have "WikiProject" (or "WikiProjects") as part of the name. Note that this does not apply to the names of categories that projects might create for the use of asse...For geographical photo requests, the category name should be "Wikipedia requested photographs in xxx" as in [[Category:Wikipedia requested photographs in England]]; see Category:Wikipedia requested...For categorization in userspace, see Wikipedia:Categorization#User namespace and Wikipedia:User categories#Naming conventions.Categories are not the only means of enabling users to browse sets of related pages. And categories have several disadvantages, including: 1. Categories by default list only the name of a page. Individual category members cannot be annotated with descriptions or comments, so they give no context or elaboration for any specific entry. However, short...
A good category name is neutral, and as much as possible, defines the category inclusion criteria in the name itself. Important: When choosing a name for the category, please be sure a similar category does not exist. 1. For example: You might want to add a sub-category for people to Category:Mexicans. Before creating that category, try to find it ...
After you have determined an appropriate category name for the category, next try to find a suitable place for the new category. (For example, categories of people should be in the tree of "people" categories.) Please see #Category tree organizationfor more information on this. Once you have determined where to categorize this new category, you sho...
Sometimes, a common-sense guess based on the title of the category isn't enough to figure out whether a page should be listed in the category. So, rather than leave the text of a category page empty (containing only parent category declarations), adding a main articlewhich describes the topic, can help with that. However, only linking to a Wikipedi...
Categories may have hundreds of members, displayed over many pages, with, at most, only 200 category entries on a single category page. To make navigating large categories easier, a table of contents can be used on the category page. The following templates are some of the ways of doing this: 1. {{Category TOC}} – adds a complete table of contents ...
Apart from certain exceptions (i.e. eponymous categories and non-diffusing subcategories – see below), an article should be categorised under the most specific branch in the category tree possible, without duplication in parent categories above it. In other words, articles should rarely be placed in both a given category and any of its sub- or pare...
Category tags should be added to file pages of files that have been uploaded to Wikipedia. When categorized, files are not included in the count of articles in the category, but are displayed in a separate section with a thumbnail and the name for each. A category can mix articles and images, or a separate file/image category can be created. A file...
Aug 20, 2021 · This type of visualization helps you answer these questions: Which category has the highest proportion, i.e., which has the most value within the data? What subcategories does each category have? Which category has the most subcategories? How many levels of hierarchy are there per category? Related visualizations
Jul 9, 2012 · How many subcategories should I include? This answer depends on how many logical subcategories you can create, but it’s recommended that you restrict their number within a single category to less than 100 (this is pushing it from a user-experience perspective), as it may result in your pages timing out.
One TaxoPress user asked us about using WordPress Categories. They wanted to know if there’s a limit to the number of sub-categories they can create on their WordPress site. This ability to have a parent term is one key difference between Categories and Tags. The simple answer is “No”.
Suppose I have samples drawn from categories A, B, C. Within those categories, I have subcategories d,e,f which are found in all 3 categories. I want to visualize how many samples I have form categories A, B, C and the proportional composition of subcategories d,e,f within each category.
