entity-attribute-value

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mysql dynamic rows

everyone i would like to perform a query on MySQL with dynamic rows. Imagine this: table phones_categories[详细]

2023-04-06 21:50 分类：问答
Sql parse column as int and check if it is within range

I\'ve used the top voted answer from here to check if a cell value is an integer. But I also need to do a range check on it.[详细]

2023-04-03 22:18 分类：问答
Symfony2 - how to create form based on dynamic parameters from db? (EAV)

I would like to create form based on dynamic parameters that are stored in DB. So I\'ve created an entity called Parameter that defines parameter name, which should be displayed as form field label.[详细]

2023-04-03 10:04 分类：问答
MySQL Update multiple rows on a single column based on values from that same column

I have a table that looks like the following: IDKeyValueOrder 1genderm0 2genderf0 34age100 35age800 To update these rows I have to use the following:[详细]

2023-04-01 07:17 分类：问答
Programmatically updating/editing an attribute's option in Magento

I have an attribute called \"vendor_id\". I have N products that have the \"vendor_id\" as an attribute of the product. The options for the \"vendor_id\" attribute are being generated programmatically[详细]

2023-04-01 03:32 分类：问答
SQL: Normalization of database while retaining constraints

Suppose I have the following tables: ________________________________________ |Organisms||Species| |--------------------||--------------------|[详细]

2023-03-30 06:40 分类：问答
Better way to do MySQL Object layer

I am not a pro in MySQL, but want to do something like Object Layer above relational MySQL tables. I want to have very many \"structures\" with a fields of type \"bigint\", \"longtext\", \"datetime\"[详细]

2023-03-29 17:22 分类：问答
MySQL: how to convert to EAV - Part 3?

Previous Related Posts: MySQL: how to convert to EAV? MySQL: how to convert to EAV - Part 2? Given a table:[详细]

2023-03-28 08:41 分类：问答
Database design: EAV options?

This is just a database concept question: what are the pros and cons of the following model for EAV? Model 1:[详细]

2023-03-27 12:11 分类：问答
MySQL: how to convert to EAV - Part 2?

Here\'s Part 1: MySQL: how to convert to EAV? Now I want to also do something different. Say I have the following table:[详细]

2023-03-27 07:07 分类：问答