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Home » database

Tag: database

get post meta for all id [closed]

PHP April 13, 2021

I want to get all brands from DB. It should work like get_post_meta( get_the_id(), ‘make’, true); but without id. It should contain an array with all brands. Which command I should use?

password_verify() function always return false issue [closed]

PHP April 13, 2021

this is my login.inc.php file where the login happens $sql = ‘SELECT * FROM users_back WHERE uidUsers =? OR emailUsers = ?’; $stmt = $pdo->prepare($sql); $stmt->execute([$…

Unknown column in foreign key definition

DBMS April 12, 2021

I’m trying to add a new table to an already existing database but it keeps giving me an error “Unknown column ‘product_id’ in foreign key definition”. CREATE TABLE product_review ( …

JSON object or JSON string? Which is better to store in database? [closed]

JavaScript April 11, 2021

I’m little confused that if I wanna store json objects and arrays in db than which way is better. I can either directly store them as they are or I can first convert it to string with method JSON….

How can I store the direction of a bus route in mysql database?

DBMS April 10, 2021

I have 3 table: Route, Bus_stop, Route-Bus_stop Route: id, weekday, weekend Bus_stop: id, name Route-Bus_stop: primary key(order, time), foreign key: idRoute, idBus_stop Insert into Route(id,…

Merge multiple tables into one row in a new table

DBMS April 9, 2021

UPDATE the_main_table SET item_Name = ( SELECT item_Name FROM 1d_high_today WHERE 1d_high_today.osrs_id = the_main_table.osrs_id ); UPDATE the_main_table SET D_high = ( SELECT D_high FROM …

PHP Beginner – How to fix fatal errors : Uncaught TypeError: mysqli_query(): [closed]

DBMS April 9, 2021

Please help with errors that are found like this: Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in D:xampphtdocsphpdasarpertemuan10…

Creating ERD Diagram From Case Study

DBMS April 8, 2021

i am trying to create an ERD diagram for a crowdfunding service. I am not sure if i took Entities right and relationships between them. The task is create Rules(Sentences for relationship) and Find …

Diffrence between sum of two products > 0

DBMS April 8, 2021

I want to select the sum of T_No where Transactions are equal to R and subtract it by T_No where Transactions are equal to D and the answer of this should greater than zero for a CustomerID which …

How do I get multiple rows from django database?

Python April 8, 2021

Hello I am trying to create an employee attendance program and I want to make it so that the employees can see the total hours they worked. This is the code that creating the problem: elif ‘checkName’ …

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