How to get related rows between two tables

My Forms: Form 1 Exercise|primaryMuscleGroup|motionName||------------------|------------------ --||chest|parallel bar dips||chest|bench press||chest|push-ups||chest|fly||legs|squats||legs|lunges||back|deadlift|Table 2 fitness records |name|motionName||------------------|--------------------|

P粉976737101 2023-09-14 23:53:48 0  2  605

form inside table

I have included some forms in an HTML table for adding new rows and updating current rows. The problem I'm having is that when I inspect the form in the dev tools, I see that the form elements close immediately after opening (input boxes etc. are not contained within the form). Therefore, fields can...

P粉916553895 2023-08-17 10:16:22 0  2  569

html5 show hide

How to click on a list item in html5 and display the question below the item? Click on the question and display the answer below the question? Click the question again to hide the answer.

扔个三星炸死你 2017-06-28 09:22:14 0  2  832

Given two tables risk_events (risk event table) and event_define (risk definition table)

Question: Given two tables risk_events (risk event table) and event_define (risk definition table). The table data is as follows: 1. risk_events field description: Event_code: event code Num: number of events Time: time when the event occurred 2. event_define field description: Code: event code Name...

A .配角 2021-05-12 11:32:14 0  0  897

data sheet

Why doesn't this come with a data sheet? Is there a data sheet? Can you give me a copy?

嘀嘀 2020-11-03 13:45:35 0  1  1703

"Filter" huge MariaDB/Mysql tables based on different tables

Processing large datasets in my mariaDB database. I have two tables, Table A contains 57 million rows and Table B contains about 500 rows. Table B is a subset of ids related to columns in Table A. I want to delete all rows without corresponding ID in A table B. Example table A: classification_id nam...

P粉287345251 2023-09-07 10:51:26 0  2  593

php - Synchronize data between two tables

Table A and Table B (Table B wants to synchronize the data in Table A. The account field in Table A is the same as the account field in Table B. The condition for synchronization is that when the account field exists in Table A but not in Table B, then The account field in table A needs to be taken ...

天蓬老师 2017-07-03 11:40:18 0  1  864

php - mysql table field problem

I have a question. I have a table A and a table B. Table A is the main table and is used to store primary information. Table B is an additional table and is used to store secondary information. How can I add one of the fields of table B to the field? Copy the values ​​to the main table?

过去多啦不再A梦 2017-05-16 13:00:36 0  3  384

php - mysql multi-table query

There are two tables, briefly describe them. Table 1: Relationship table between courses and students rsid cid1 ｜ 11 ｜ 2 The student with student number 1 chose the courses with cid 1 and 2. Table 2: The specific timetable of the course dcid day start end 1 ｜ 2 ｜ 14 ｜ 16 2 ｜ 2 ｜ 13 ｜ 15 Course cid.....

滿天的星座 2017-05-25 15:08:10 0  3  774

mysql - What should you pay attention to when connecting large tables and small tables? Performance

Does a small table drive a big table?

天蓬老师 2017-05-27 17:39:11 0  1  946

Regular expression - find a regular expression in vim

The original text is simplified as follows (several table creation statements, some tables have the same fields): {code...} I need to select the table creation statements with field2 field in the table, that is, select the following text { Code...} I thought of a regular CREATE\_.\{-}F_class_type\_....

天蓬老师 2017-05-16 16:40:06 0  3  557

php - mysql3 table query

[star star list] id name has N stars, auto-increment id [sing song list] id name star_idN multiple songs [movie movie list] id name star_idN multiple movies Query how many songs and movies each star has in total name cout_sing count_movie

阿神 2017-06-30 09:54:49 0  2  868

I want to insert the user_Id from one table into the parent_id of another table, but there are no common values ​​between the two tables.

I currently have three tables: users table, parent table and created_at table. Data is inserted at registration time. The users table contains user_id (primary key), user_fName, user_lName, user_Uid, email, user_Pwd and dateTime columns. The parent table contains mFname, mLname, mEmail, mPhone, fFna...

P粉323224129 2023-07-30 13:35:25 0  1  417