I'm trying to come up with a query that will pull the total quantity of an item from its first ever order. I understand how to pull out each item and their first order number was, but I'm trying to…
I have a table Users with id, this table has a million records or more. So when fetching data from the table I am using batching with offset & limit to reduce load on my server. My question is if…
I'm trying to connect to a MySQL database using Python with the mysql-connector library, but I keep running into an error. Here's the code I'm using: python import mysql.connector try: connection = mysql.connector.connect( host='localhost', user='myuser', password='mypassword', database='mydatabase' ) print("Connection successful")…
I am trying to learn the best methods to grant user privileges on database CREATE USER IF NOT EXIST `'silas'@localhost'` IDENTIFIED BY '1234' GRANT ALL PRIVILEGES ON *.* TO 'silas'@'localhost'; or GRANT ALL PRIVILEGES ON `my_db.*` TO `'silas'@'localhost'`; I am…
From inside a procedure I need to separate 4k records of one big table to process it each one in a separate cursor. UPDATE queue SET `status` = 'enqueued', `hash` = new_hash -- prev generated hash WHERE `status` = 'new'…
When I run this following select query on the command line in Mysql: SELECT date_sent FROM books; I get this sort of result (eg) | 2024-10-06 | but if I run the same select query from inside python: # Select…
I am using this php code for MySQL database query: function search_it() { if ( isset( $_GET['s'] ) ) { global $wpdb; $address_table = $wpdb->prefix . 'my_products'; $search = $_GET['s']; $search = trim($search); $keywords = explode(" ", $search); foreach($keywords as…
Current record: When I update the value of current record's activity_weightage as 2 it should pick up start_date as current_date and end_date as 31/12/2099. and it should update the original record's end date with today's date. How to write SQL…
I created a utility class to handle database connections using JDBC. I get the error below in another class, performing actions such as displaying the values from the database: "Cannot invoke "java.sql.Connection.prepareStatement(String)" because "Utils.connection" is null" I have another class…
We currently use peewe 2.x and this is the code we use custom mysql connection: from peewee import MySQLDatabase class SQLDb(MySQLDatabase): def connect(self, *args, **kwargs): attempts = 5 while attempts > 0: # Logic to retry db connection def begin(self):…