denormalized

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Retrieving a Specific Value From A Serialized Array MySQL

Database structure is as follows: id|metaKey|metaValue --+-------+----------------------------------- 55|product|a:8:{s:3:\"sku\";s:0:\"\";s:8:\"products\";a:3:{i:1;a:3:{s:6:\"option\";s:1:\"1\";s:5:[详细]

2023-04-08 22:31 分类：问答
Oracle SQL getting the nth element regexp

I am 开发者_运维技巧trying to get the nth element in a comma separated string using SQL in Oracle.[详细]

2023-04-04 07:03 分类：问答
unserialize() value of database and putting it in json_encode after foreach

I insert in database values (array) $row->units with use function serialize()=>[$row->units], how can echo they with unserialize() in json_encode with $row->name? (return send for ajax call i[详细]

2023-04-01 22:36 分类：问答
Join tables with comma values

I have a hard nut to crack with joing 3 tables. I have a newsletter_items, newsletter_fields and newsletter_mailgroups which I want to be joined to get a list of newsletters.[详细]

2023-03-31 10:45 分类：问答
SQL - How to check if item is in a list in a record

I have have a column name MyRoles that contains a list of items (integers) stored in a field named UserRoles. I want to write a query th开发者_如何学Goat checks to see if a specific item is in the lis[详细]

2023-03-13 02:05 分类：问答
Why doesn't this mysql IN (1,2,3,4...) condition work if there are many values in the parenthesis?

I am storing in a column a list of states that are separated by commas: Like this: 1,2,3,4,5,6,7,8.. and so on, just their IDs.[详细]

2023-01-19 04:04 分类：问答
Storing expression template functors

at the moment I\'m really interested in expression templates and want to code a library for writing and differentiating mathematical functions with a lambda-style syntax. At the moment, I\'m able to w[详细]

2022-12-23 05:19 分类：问答