Suppose I have a Salary model contains column of month and year I want to fetch data like Salary::where((year==date(‘Y’) && month<date('m')) || yearget() How can I …
Tag: sql
SQL combining the join result of two different tables
I am having a problem with SQL at the moment. I use an example database of W3School This is what I have now: SELECT Categories.CategoryID, Categories.CategoryName, COUNT(Products….
Rails Postgres query, selecting only items that appear in all search params with associations
I’m looking to create a Postgres query based on a few user select params. A user will select a shop and a start and end year. Once submitted I’m would only like to display average prices of items if …
Return opposite transaction value rows
I have this table structure and I want a query that needs to be returning opposite side columns values. If I pass parameter with value Overtime then it should return following rows The logic is against each transaction if the selected Account is on Debit side it should print the Credit side accounts and if th…
How to avoid adding duplicate foreign key constraints
I would to know if it is possible to avoid adding several times the same foreign key constraint? Example: if I execute 3 times the query below, the constraint will exist with 3 times in phpmyadmin… It would be great that it would be rejected the second and third time I apply that query. Answer You can g…
SQLAlchemy – Return filtered table AND corresponding foreign table values
I have the following SQLAlchemy mapped classes: class ShowModel(db.Model): __tablename__ = ‘shows’ id = db.Column(db.Integer, primary_key=True) name = db.Column(db.String(100)) …
How to get hours between two dates in SQL Server?
I have two dates 2019-01-02 12:33:36.000 and 2019-01-09 19:05:18.000 I want to calculate the hours and mins between the two excluding Saturday and Sunday. I can calculate the difference but not sure …
PostgreSQL error when removing orders placed closer than 2 minutes apart SQL Error [42803]: ERROR: aggregate functions are not allowed in WHERE
I am getting the following error when removing orders placed closer than 2 minutes apart, but I cannot use HAVING as there isn’t a GROUP BY in the sub query. Am I approaching this correctly and …
PHP and MySQL, Using a foreign key to get data from another table where it originates from
This question involves 3 tables that I have in PHPmyAdmin called: tblShoots tblMemberOnShoot tblMember I need to run a query on a users dashboard which tells them, which photoshoots they have been …
I/O error while reading input message; nested exception is java.io.IOException: Stream closed
This is my controller: This is the error I get: “message”: “I/O error while reading input message; nested exception is java.io.IOException: Stream closed” Answer Your error is the result of @RequestBody being used twice in your controller method arguments. Following line causes the iss…