Problem: I have a PostgreSQL query that retrieves messages between two users from a "Messages" table. However, the query is performing a sequential scan on the table, and I'm looking for ways to optimize it. explain SELECT t."Id", t."Content", t."ConversationId",…
I work on the following test table: select * from test; id | broker | affiliate | leads ----+---------+-----------+------- 1 | broker1 | aff1 | 1 2 | broker1 | aff2 | 2 3 | broker2 | aff2 | 4…
I am trying to restore a .tar file in pgadmin 4. I created a new empty database exercises. Then clicked on exercises > create restore > select file path with data options as pre-data, data, post-data selected. While restoring it,…
I have string like fd_val__pharmacy_1_2_3_text In that above string i want replace double underscore with single underscore replace fd_ with blank replace _1, _2, _3 with blank. I am tried by using Replace function multiple times. But i want to…
I have a database with a lot of data.... that was being handled by Dot Net core framework. Now i want a small admin panel using nextjs i want to connect that database with my new next js application using…
I am trying to search a column in PostgreSQL that has values containing single quote characters. Here's the string I'd like to search and fail to do properly: activities,'L','D' I've tried using LIKE with both $$ and '' to escape…
This is so simple query. I need to update Bookings tables', LinkedBookings column (int array data type) to it's own Id. Below query didn't work for me. update public."Booking" b set "LinkedBookings" = {"Id"} Above is giving below error, SQL…
I would like to clarify answer for this question because marked statements are contradictory. Can SELECT get different results within one transaction using Read Committed Isolation Level? Based on official documentation: When a transaction uses this isolation level, a SELECT…
# I'm facing an issue when trying to execute the following code snippet using psycopg2 in place of create_engine. # Code snippet using create_engine (works fine): from sqlalchemy import create_engine import pandas as pd db_url = "your_database_url_here" engine = create_engine(db_url)…
I have 3 queries that I need to see in the same query editor window but can't seem to figure out how Postgres wants it. I have a background in T-SQL where it's intuitive enough to run this and return…