Category "sql"

Creating Custom Join in Django

I am struggling to create the correct prefetch behavior in Django. Here is the outline of the problem: Each Account has DailyQuotes, updated daily at different

MySQL correlated subquery very slow when range is included

DB Fiddle: https://www.db-fiddle.com/f/u1N4YYV3wmiWndnZNb95xz/5 For the following tables nodes and leaves, with nodes having just 9 records and leaves having a

PostgreSQL duplicate key value violates unique constraint while using on conflict do nothing on insert

Table def: CREATE SEQUENCE IF NOT EXISTS lazy_product_stock_id_seq; CREATE TABLE "public"."lazy_product_stock" ( "id" int4 NOT NULL DEFAULT nextval('lazy_pr

How can I solve this issue on Mac M1 Caused by: java.lang.Exception: No native library is found for os.name=Mac and os.arch=aarch64

I solved this issue with the code below in my build.gradle allprojects { configurations.all { resolutionStrategy { force 'org.xerial:sqlite-jdbc:3

Generating counts of open tickets over time, given opened and closed dates

I have a set of data for some tickets, with datetime of when they were opened and closed (or NULL if they are still open). +------------------+-----------------

How to join these tables with columns that don't always match?

I have 2 tables: google_analytics and marketing_costs. How can I join these 2 columns (google_analytics['source'] with marketing['medium']) even tho they don't

ClickHouse: How to store JSON data the right way?

I'm going to migrate data from PostgreSQL database to Yandex's ClickHouse. One of the fields in a source table is of type JSON - called additional_data. So, Pos

Presto Weighted Moving Average Syntax Error

I'm trying to run the weighted moving average Silota query with similar data in a Presto database but am encountering an error. The same query in the Redshift d

Conversion failed when converting the nvarchar value to data type int sql server

I have a table. There is data in this table and there is a checkbox next to each data. Multiple selection is possible. After the user makes a selection, the id

Redshift SQL Query Between Current Date and 7 days ago

I've been trying to filter the data for the last X number of days. All these columns work as standalone results when I remove the time filter from the where cla

Select Statement inside of

I get error "Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used

SQL COUNT with values from 2 tables

I have following two tables: comments comment_post_ID status comment_type 1 complete course_status 2 complete course_status a1 complete lesson_status a2 passed

simplify sql query Oracle database

Task: Write a query that returns a list of houses from the TB_ELEKTROSTAL_2018 table. It is considered that all subscribers who have the same address belong to

Querying pivot table to return a list of referred rows

I have these 6 tables and query which returns everything I want, but I want to add a new pivot table, so I can get a list of rows linked to it. Query: SELECT DI

Postgres array_position(array, element) sometimes 0-indexed?

Postgres method array_position(array, element), like other things in SQL, is 1-based. For example: SELECT array_position(array[4,5,6], 5) -- returns 2 But,

Extracting date and time from oracle

I have a table in which there is a field last_update_date in which the date is displayed in short form like 25/02/2015.If I want to extract the date in long dat

PostgreSQL- Function to update 3 shared columns from table B on table A

The main goal is to create a function that updates 3 columns on another table (the update of the 2 columns from the first table trigger the update on the second

SQL Runner (Google Looker) change date format in query

This topic has been covered several times but I can't find a solution that applies to SQL Runner, which is the custom query portion of Google's Looker platform.

Hi All, facing an issue of spark sql query for delete on basis of timestamp

I am running the delete query with the < (less then) and > (greater then) condition on the timestamp field but we are not getting the desired results. Fir

Unicode string cannot be passed to SQL query in form of parameter with pymssql

I'm having trouble passing a Unicode string to an SQL query via parameter. Initiate the connection and execute the query: conn = pymssql.connect(server='serverN