The Flutter shared_preferences package comes with a warning that says: there is no guarantee that writes will be persisted to disk after returning Because of that people often recommend using alternative solutions to local storage like Hive or SQFlite. (Aside…
my database has two table games and teams, games migration: $table->unsignedBigInteger('homeTeam'); $table->unsignedBigInteger('awayTeam'); $table->foreign('homeTeam')->references('id')->on('teams') $table->foreign('awayTeam')->references('id')->on('teams') what is relationship between this two table? many to many? should I create "game_team" pivot table? i tried to change design of database but it don't…
I have a DB with posts and tags. I want to find posts that only contain 1 tag with a specific tagId and no other tags at all. The code below works, but it requires the server to filter the…
I am trying to add a field to an aggregation called friendshipStatus and it determines whether the user is friend of the requester or no. i have this whole query [ { $match: (query) ? query : {} }, {…
I have a multidimensional array (This data may also contain very large data). In this data, in a column (example age column) I want to get data in which the data in a column (for example the age column) is…
I have been googling a lot concerning how microservices access a redis data but no luck finding good tutorials. Here is my use case. A user logs into the authentication microservice A (spring boot) for the first time. After being…
I have this table in my sql: 1 user1 2023-07-10 2 user1 2023-06-25 3 user2 2023-06-21 4 user3 2023-06-27 5 user3 2023-07-11 6 user4 2023-07-14 7 user2 2023-07-16 8 user1 2023-07-17 9 user4 2023-07-15 10 user5 2023-03-06 I need to…
I have a table like: create table movement_logs ( id integer NOT NULL, room_id integer NOT NULL, entry_time timestamp NOT NULL, exit_time timestamp, user_id integer NOT NULL ) This models a domain where users enter rooms. This table logs timestamps…
My table looks like this: Name Date of Birth John 02-02-1990 15:30 Esther 05-05-1980 13:30 Mark 07-10-1980 12:30 I want a query that returns this. Age Count 33 1 43 2 I've seen other solutions like what we have here…
update 20M records in table and set col1 = col2 + col3 for each record using spring boot. try (Connection connection = dataSource.getConnection()) { String updateQuery = "UPDATE table SET col1 = ? WHERE id = ?"; PreparedStatement preparedStatement =…