A JOIN is a general operation in relational algebra for a combining operation on two or more relations in a relational database system. JOIN is also keyword of the SQL language for performing this operation.
I'm very confused to make my select. I need show the information as a table
cows.ring_numbem, groups.name, rooms.name when cows.is_sold = 0
How could I do this JOINS?
below is my query and on the screenshot it's how the two datasets look like and what I want to get.
create table new as
from email.sent e
left join email....
Im trying to understand inner join correct use but im having trouble when I have to call more than 2 tables, im using oracle HR schema for tests, so for example im trying this query:
My question is based on the answer from asemprini87 from this link:How to Join 4 tables in SQL. (please check the original tables through this link, if you are interested).
My question focuses on: ...
I have a query to return all the records that have no activity in the last 90 days, but it looks like it is returning records that are active in the last 90 days too. How can I fix this?
my logic to ...
Very new to this, so nothing like starting with a complicated query
I have a string field in table1 - manager
I have a string field in table1 - disname
both strings look something like this:
I am getting error while using CASE in JOIN statement. Below is the query. I have masked the contents. Please let me know where I am going wrong. As it looks fine to me. Pasted the error aswell.
Below is the table structure of tables a,b,c,d and x
write a query to find id, i am expecting this can be done using case statement but not sure how to put it in query.
id name address
I have a scenario and need your valuable suggestions on the same. I am using Spring MVC with Hibernate and JPA and MySql db:-
I have a website for hospital wherein in one web page I am displaying the ...
I'm trying to make a join on 2 tables.
| date | var |
| 1 | a |
| 2 | b |
| 3 | e |
| 4 | c |
| 5 | b |
| date | var |
| 1 | a ...
Table_a has columns : old_id and new_id . Following query gives planning region and organization code for old_id.
FROM table_a ...
Suppose I have these tables in SQL Server:
ID | name | typeid | depid
1 | Mark | 1 | NULL
2 | Ted | 2 | 1
ID | Type
I have 3 relational tables : users, posts, and reposts.
In reposts table, I have fields: user_id (the user who reposted the post) and, post_id.
In posts table, I have fields: id, posts, and user_id.
Below are my example files.
Using AccountInfo(Account) to search the sub-folder existing on FolderStatus(Sub-folder).
I'm currently working on this project that unfortunately did not setup their tables correctly and therefore I'm completely lost as to how to tackle the problem. I have 4 tables, orders(contains order ...