I have a dependency spring-boot-starter-data-jpa Configuration for JPA is inside application.properties: spring.datasource.url=jdbc:mysql://localhost:3306/db?serverTimezone=UTC spring.datasource….
SQLException: Column not found
My sql query should take all the fields from the table and transfer them to the FTL page using the UserMapper template. The template indicates which object to create and to which fields of the object …
How to sort on text data type
I have a table like below: ID | text_field —-| ———- 1 | ABC-432 2 | ABC-1 3 | ABC-10 4 | ABC-5 I would like to get a list of the top two results based on the text_field number part …
subquery in FROM must have an alias POSTGIS
I am trying using the following query on a POSTGIS (Postgres) Database. The original question: https://gis.stackexchange.com/questions/313252/postgis-sql-query-filter-by-bounding-box SELECT …
Is a non-clustered index implicitly created for each foreign key in a table?
If I have a table like so: CREATE TABLE MyTable ( Id INT PRIMARY KEY IDENTITY(1, 1), FooId INT NOT NULL FOREIGN KEY REFERENCES Foo(Id), Data NVARCHAR(10) NOT NULL ); The following …
Oracle: Analytical functions Sub totals after each change in value
I have the following data (order of records as in the example): A B 1 10 1 20 1 30 1 40 2 50 2 65 2 75 1 89 1 100 from SQL: with x as ( select A, B from ( select 1 as A, …
SQL selecting data between particular date and additional field filter
I have the a sql table payments with the following columns: id|name|amount|reference_number|payment_date|status And here is some values 1|John Doe|10.00|123456G|2019-02-21 08:00:21|confirmed 2|John …
MySQL: How to track a players total kills throughout his career
I have a table structure with 4 essential columns: match_id date player_id kills (of a player in the current game) The table will have data for many different player_ids, and what I want to …
How to improve JPA Query performance and response time on multiple Join tables and conditions
I am very fresh java beginner and I am trying to implement possibility to review documents. User, who belongs to a certain group can review documents of particular types that are assigned to that …
Postgres aggregrate function for calculating vector average of wind speed (vector magnitude) and wind direction (vector direction)
I have a table with two columns wind_speed and wind_direction. I want to have a custom aggregrate function that would return average wind_speed and wind_direction. wind_speed and wind_direction in …