I have two tables with similar columns and I would like to know the difference between these tables. So if all values (column-wise) of the row exists in both table it is fine (I do not want to see this),…
Assume I have two tables: cameraNum roadNum isWorking 100 1 TRUE 101 1 FALSE 102 1 TRUE 103 3 FALSE 104 3 FALSE 105 7 TRUE 106 7 TRUE 107 7 TRUE 108 9 FALSE 109 9 FALSE 110 9…
If I have TEXT data type (up to 65,535 characters), is taking first 500 characters faster than the whole column? There is a LEFT function that can particularly be used in this situation, but I'm wondering if it improves performance…
I want to join two tables: Table1: Task Hours Client Time Task A 1 Client A 2023-01-01 Task A 2 Client A 2022-03-04 Task A 3 Client A 2023-01-01 Task A 4 Client A 2022-03-04 Task B 5 Client A…
I have a boxscore data set of a basketball team with mm:ss played (ex. 44:46) when I uploaded the csv to the table the values whose greater than 24 somehow became hh:mm (ex. 44:46 became 44:46:00) while the others just…
I have two tables one is users and other is students. I wish to execute a single SQL statement that inserts into both these tables different values. The id is PK for users and I have referenced the same id…
I have a SQL table that can reference another record in the table as its parent but should not reference itself. I have attempted to enforce this with a CHECK constraint but my attempts have failed as the id is…
Need to aggregate latest product prices of all products from batchTransaction Table, relevant Columns: id - Unique productId - Not unique transactionValue - Value of that transaction transactionDate - date of that transaction A product can have multiple transactions but…
Name Date Score A 01-01-2023 100 A 01-01-2023 200 A 03-01-2023 300 B 02-01-2023 400 B 03-01-2023 100 B 03-01-2023 100 i have this table and i want to seperate it into multiple column of date and SUM the score…
I am creating a movie database and I have a query that finds movies by their ID and it is working. public function getMovieById($id) { $query = "SELECT * FROM movies WHERE id = ?"; $paramType = "i"; $paramValue =…