sql_class | SQL for Marketers Class on Udemy | SQL Database library
kandi X-RAY | sql_class Summary
kandi X-RAY | sql_class Summary
SQL for Marketers Class on Udemy
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QUESTION
I have a system which contains items that may each belong to more than one parent. I need to be able to retrieve all of an item's children, and it's children's children.. ad nauseam. OK well there are 5 levels.
Each item has (or should have) a json column named "belongs_to_json" (also more columns such as "id" and whatnot) which contains each parent, order combination. e.g. [{"parent": 2, "order": 4},{"parent": 13, "order": 1}]
I can search for this and others with the same parent by combining PHP and MYSQL (idea found on stackoverflow previously)
First I run a query (codeigniter framework) getting some item parents and put the query in a $qry_classes variable.
...ANSWER
Answered 2019-May-29 at 23:53You can just use put a literal in the SELECT
list, you don't need to get it from the WHERE
clause.
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Install sql_class
You can use sql_class like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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