I have table like following job_id quantity 2948 0 2947 3 2949 34 2950 4 And I have another table like following job_id quantity 1 10 2949 10 2949 20 If I run SELECT job_id, sum(quantity) FROM arr_database.test_table group by…
I am at the beginning of learning SQL, and this problem gives me a headache. I have a table where I want to work with these columns: updated_date upload_date 2023-04-03 09:10:50 2023-04-03 09:08:24 2023-04-03 09:14:55 2023-04-03 09:08:34 2023-04-03 09:23:51 2023-04-03…
I have a MYSQL InnoDB table table with the following columns (table and column names changed): date (PK, DATE) var_a (PK, FK, INT) var_b (PK, FK, INT) rel_ab (DECIMAL) where rel_ab is a column that describes a relationship between 2…
I have a symfony repository method, which fetches a quite complex data set, which will then be placed in a CSV file by an export manager class. I don't want to place the whole code of handling the export job,…
i am new in spring boot and such things, this is the first project i was trying to explore and was following a lecture for project creation, i made an entity class with @entity and @table annotations, when i executed…
I know this topic is discussed in many threads but I still cannot find the solution for my case. I am using mysql 8.0.24 in centOS 8.0 and trying to reset my root password. Here is my user table. +------------------+-----------+…
I'm working on a project Where I want to use SQL to select the creation date, creation user and count how many unique instances. The problem is I am change the creation date into 2 separate fields of YEAR and…
When using JDBC to retrieve query results I use ResultSet like: ResultSet result_set = statement.executeQuery(query); In documentation it says: "A ResultSet object maintains a cursor pointing to its current row of data." meaning that if I do result_set.close() before I…
I want to pick a random number from a list of integers in a MySQL Stored Procedure. This list is generated from another function using some calculations. Example: [41,69,9,31,10,33,13,73,20,62,21,58,22,39] I tried the RAND() function but they are dependent on constant…
A single number is a number that appeared only once in the MyNumbers table. Write an SQL query to report the largest single number. If there is no single number, report null. The query result format is in the following…