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Regarding php business logic and mysql optimization issues

There is a usr table that stores uid, username business table 1, the stored information includes field uid, username business table 2, the stored information is only uid, (multiple data in business table 2 corresponds to one piece of data in business table 1) Existing: Query Traverse business table ...

趙。。。。趙得住 2018-07-11 11:43:28 0  3  1290

Please ask for an eloquent related query in laravel

Table structure {code...} Now we need to query the permission_id list in the permission table based on the user_id in the Auth::user()->id where role table and then based on the role_id. . . How to write this using eloquent?

ringa_lee 2017-05-16 16:55:49 0  2  495

SQL method to query rows based on parameters and join table

I have the following GET endpoint in my Ruby project: /endpoint/:special_param I have a database with 2 tables. Table 1 contains the following columns: id, special_param_column, joinable_column Table 2 contains the following columns: id, joinable_column, other_data This is my code to handle the requ...

P粉797855790 2023-09-07 15:32:10 0  1  675

java - How to optimize the interface to return large amounts of data?

Requirement description: The peripheral platform calls the interface to query the user's song list recommendation information based on the mobile phone number. Each user will have about a thousand pieces of recommendation information. Each piece of recommendation information includes the fields of s...

世界只因有你 2017-05-17 10:00:33 0  4  1037

php - mysql query to sort one table based on the number of fields in another table

Now there is a novel information table A (just summary information of the novel). The chapter information of the novel will be placed in the table B with the novel id%100 (for example, the novel id of table A is 1245, then its chapter data will be placed in Chapter_45 In this table, the novel inform...

滿天的星座 2017-05-16 12:58:36 0  2  572

MySql and SQL settings before update trigger Updates of different tables/columns cannot update tables in stored functions/triggers

I have a join table with 2 tables (A and C) with n:m relationship. The connection table (B) also holds some information. A-----B------C In table A, I have a when_modified column that I always want to keep up to date if anything changes. This should include changes on Table B. So I have a pre-update ...

P粉677684876 2023-09-14 21:54:36 0  1  702

php - Taobao order splitting table design

Our mall currently uses two tables, the ORDER table and the ORDER_DETAIL table. The ORDER table only saves user information, addresses, total prices, etc. The specific product information is stored in the DETAIL store, but now it is divided into two orders to be completed by different merchants. , h...

過(guò)去多啦不再A夢(mèng) 2017-05-25 15:08:21 0  2  2457

mysql - How to implement multi-table association query?

{Code...} The above are three tables in the database, related through UserID. Table A is a user login information table with LogID as the primary key; Table B stores user active status, and Table C stores user geographical location information. Now I want to get the cumulative sum of the number of o...

巴扎黑 2017-07-04 13:44:12 0  1  1201

MySQL: How to use CASE with ORDER BY clause

I have a stored procedure that has to return a table after filtering rows based on input. Two of the inputs are sort_column and sort_dir. The query must ORDERBY sort_column in the sort_dir direction (ASC or DESC). I tried the following query without success. The query below has been simplified to in...

P粉463291248 2023-11-01 17:44:15 0  1  763

java - Encountering problems with paging queries in Oracle database

This is the case. There is a field KS_ZKZ in my table. This field is not unique in the table. Each student number appears multiple times. Now I want to perform a paging query based on this student number: First, enter the student number. Repeat and sort in ascending order: {code...} After having thi...

PHP中文網(wǎng) 2017-05-17 10:04:43 0  2  849

How to display the table value corresponding to its matching id

So, in the query below, I join two tables by order_id and display all values ??from user_orders table. Based on the image below, I try to display only the order_Id rows that match the order_manager table. publicfunctiongetUserOrder(){$sql="SELECTuser_orders.order_id,user_orders.title,user_order...

P粉710478990 2024-02-17 22:00:09 0  1  523

mysql - sql How to query the third-level subset based on the parent id?

Now there is a need to query the third-level subset database based on fid. A table has three fields (id, name, fid) id name fid1 01 02 02 13 03 24 04 35 05 36 06 47 07 6....... ........ Now how to query the content of the next three levels based on ID, for example, check the sub-aggregation of the n...

PHPz 2017-05-18 10:51:03 0  2  1059

How to manage MySQL slow queries when comparing two tables in a master-detail relationship: A step-by-step guide

Please help me.. I have a query as follows: This is a table: delivery_orderdelivery_order_itembstbst_item I want to show items that exist in delivery_order/item table but not in bst/item table, comparing based on KODE_BARANG and JUMLAH. I have the query below, but it's still very slow if there's alr...

P粉724256860 2023-09-13 16:56:06 0  1  576

MySQL gets data from multiple tables

I have a eg_design table which contains the following columns: and eg_domains table which contains the following columns: and eg_fonts table which contains the following columns: Now based on $domain_id I want to get all the data from the eg_design table, some from the eg_domains table data as well ...

P粉092778585 2024-04-06 18:42:44 0  2  1041

I would like to ask all the teachers and seniors about cross-database join table query in TP5.1 ms sql server.

As the title states, I would like to ask you about cross-database connection table query in TP5.1's ms sql server: The current situation is as follows. I have a statistical reporting system project at hand. My backend is made with TP5.1 and the frontend is made with vue. System frontend The user inf...

At** 2018-11-16 03:21:15 0  2  1033

About querying the picture of another table corresponding to the product table id based on the product table id

Teacher, based on the product table id, query the picture corresponding to the product table id in another table. Is there any other way to achieve this? Give me some ideas. I think all the methods are written in the public folder. If you re-assign another field in the volist loop, it doesn't seem t...

靖哥哥 2019-05-29 11:47:49 0  2  1421

When getting data from multiple tables, how to query based on entries in the table in SQL grouping

I have two tables click 2.ride click table id | time ride table id | timestamp I want to get data from both tables GROUPBYEXTRACT(DAYFROMride.timestamp) but only if I have same day in both tables I only get the data when an entry is made, but I need the data regardless of whether the two tables have...

P粉038856725 2024-04-04 08:58:17 0  1  632

php - How to splice multiple fuzzy conditional queries in laravel?

Suppose now I receive a form array from the front end: $input = $request->input(); which contains 4 values: email, name, age, gender. Now I need to query the data table based on the values ??entered by the user. , if the user enters email and name, a fuzzy query is performed. If the user ente...

ringa_lee 2017-05-16 12:02:58 0  5  1837

Identify column names with consistent values ??for a specific row

I'm trying to make a query in mysql to get any column that has a specific value for a specific row. In Mysql we can get rows based on any specific value of a column. I have a table like this: +----+----------------+------------+---------- -----+---------------+---------+----------------+- --------|I...

P粉738046172 2023-12-11 09:56:34 0  1  503

How to select based on fields in JSON column using Doctrine query builder

I have a table with a JSON column of type longtext(DC2Type:json). The table has an entity in DoctrineORM in my Symfony project. I want to make a query based on a field within a JSON column using the Doctrine query builder in the variable $qb. How can I do this? Everything I've found online says to i...

P粉423694341 2024-01-06 16:58:30 0  1  689