Tag: typeorm

Create query builder that the source table (FROM) is a join table in TypeORM

I’m trying to implement the following SQL in TypeORM using QueryBuilder: The entities are: When you create a query builder you have to use some entity or table but the join table is “hidden” by TypeORM I know I can replace the inner join table order and it will solve the problem but I’m looking for when the source table

Optimize nested inner joins

postgresql sql typeorm

The following TypeORM generated SQL query takes over 11 sec to complete : Given the following database indexes : It feels like some left joins could be indexed, but I am unsure how to do it the proper way. Besides from indexing, is there anything I could do from TypeORM (or other), to really speed up the request? Here is

Typeorm MINUS operator

sql typeorm

I’m trying to do a set difference in SQL. I’ve discovered the MINUS operator, which seems to do exactly what I need: https://www.geeksforgeeks.org/sql-minus-operator/ I’m trying to figure out if there’s a way to use this operator via typeorm. I’m currently using connection.getRepository().createQueryBuilder(), and I don’t see any methods on the resulting query builder that look like they correspond to the

How do I translate this SQL query to Typeorm

nestjs sql typeorm

I have this query that I tested in the query tool, and I now wish to apply this into Typeorm syntax I have tried this approach but it’s not 100% correct: Answer Assuming your class defined for the entity menu_entry is MenuEntry, typeorm query statement would be as follows-

TypeOrm: Selecting results that contain all values in array

javascript query-builder sql typeorm

I am having some trouble getting the data I want from a Typeorm query. Basically, we have a search bar for the users to search our database of products (medicines). I want to select all records from the database that include every word the user entered. (These words are split into an array of values.) It might not be a

EntityColumnNotFound: No entity column “authors” was found. many to many relations on TypeORM and NestJS

many-to-many nestjs sql typeorm

I am trying to get the books per user from the get request I have the following problem, it turns out that I am doing a many-to-many relationship but it indicates that the authors entity was not found,…

Orderby on multiple columns using typeorm

mysql orm sql sql-order-by typeorm

In my application, I am using MySQL and typeorm and want to do orderBy using multiple columns. I searched so many places for it but did not get any solution. Example: I have two columns in a table user and respective User Entity ________________________________________ | id | name | createDate | createdTime | —————————————- | 1 | Sai | 2020-12-12

How to get related field with typeorm?

javascript sql typeorm

In typeorm I run this code and the results are without lastApprover and managerApprover fields. I need those properties to be in the object. what I need to change to achieve that? This is my code: task.ts user.ts: Answer Try to add relations

How to show generated SQL / raw SQL in TypeORM queryBuilder

sql typeorm

I developed typeorm querybuilder. For the purpose of debugging, I’d like to show the generated SQL query. I tested printSql() method, but it didn’t show any SQL query. It returned the following: My desired result is to get the generated SQL query. Is there any wrong point? Is there any good way to get the SQL query? Answer .getQuery() or

TypeORM – How to remove last added row?

node.js sql typeorm

I’m trying to remove only the last added row. Instead, of the last one, it removes all rows. I was thinking about adding where corresponding to the newest date but I feel it’s not a good approach to solve this problem. Answer Use a subquery to query the last insert row first, then delete this row by the returned id: