Question : We are using aws/rds, MySQL 5.5.8. all InnoDB. For performance purposes, we have merged some data-elements into varchar […]
Category: Join
mysql join not working as expected
Question : i want to select schedule of specific teacher for a given day …. statement should assume that a […]
SQL query – Do I need a full join to produce this combined result?
Question : With two tables structured like this: Table1 Table2 —————- —————- id, time, x id, time, y, z 1 […]
How to use GROUP BY after the Having clause Mysql
Question : Here is the query which gets the accounts for a specific user the products are related to accounts […]
Oracle’s (+) notation within function
Question : If we use (+) notation we can have outer join. For example: select * from tab_a, tab_b where […]
How to select students that failed at least at all courses that student with id = 1 failed?
Question : I have the following tables: STUDENT (student_id, first_name, last_name, birth_date, year , domain) PROFESSOR (professor_id, first_name, last_name, birth_date, […]
Join or Replace colum value based on query
Question : I have this query: SELECT h.name, i.name, i.delay, i.delay_flex, i.status, i.templateid, i.params, i.description FROM items as i LEFT […]
Using Join to get data from multiple tables in SQL Server [closed]
Question : Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? […]
COUNT number of column values with INNER JOIN [closed]
Question : Closed. This question is off-topic. It is not currently accepting answers. This question does not appear to belong […]
I am unable to join tables in correct manner
Question : I have created Four Tables- 1) Registration Table – it has registration id(rid),First Name of user(fname), Last Name […]