I have a table and I want to add some rows based on column 'days'. And for each of those rows, the 'Date' column will increment by 1 day. For example: Table X: Date Group days 1/1/2023 A 3 5/1/2023…
i'm creating a trigger that triggers on INSERT on a table, and i wish to log the structure of tables inserted so i wrote this Function CREATE OR REPLACE FUNCTION update_table_log_received() RETURNS TRIGGER AS $$ DECLARE added_column TEXT; target_table_name TEXT;…
I want to eliminate the duplicate rows based on email from the table and retrieve all the rows without duplicates. I have tried using distinct but I'm not getting desired results. SELECT DISTINCT Email FROM Users Example Table: Id Email…
My data looks like this: id user data date 1 1 1 2023-02-05 2 2 1 2023-02-05 3 1 2 2023-02-06 4 1 3 2023-02-07 5 2 5 2023-02-07 I want to get a difference between data of each row…
I have a table containing measurement information of several tests per devices: device_id gives the information on which device was tested measurement_no is an incrementing number giving the order in which tests has been performed test gives you the name…
EDIT: As requested, our table schema is, posts: postid (primary key), post_text comments: commentid (primary key) , postid (foreign key referencing posts.postid), comment_text replies replyid (primary key) commentid (foreign key referencing comments.commentid) reply_text I have the tables posts, comments, and…
For example, I have a simple table books: author book Author-A Book-A1 Author-A Book-A2 Author-B Book-B1 Author-C Book-C1 Author-C Book-C2 And I need to count books by each author, so I'll write: select author, count(*) from books group by author…
When playing with MySQL I noticed that if I run SELECT * FROM table WHERE !value; returns the same thing as SELECT * FROM table WHERE value IS NOT NULL; The table is "employees" and the column is "MiddleInitial" (strings).…
I have exact two tables but some value differences. So I would like to find those differences with condition that if the column value has a difference of more than 10. For example, all 9 columns have the same values…
I have a table like- id---------rowNum------status aa23 1 HIT aa23 1 HIT aa23 1 HIT aa23 2 MISS aa23 2 MISS aa24 2 MISS aa24 2 MISS So basically I need to get the count of and HIT and MISS…