In PostgreSQL, if i have this kind of record : |——————|———————|——————| | corona_country | corona_patient | corona_suspected | |——————|———…
Tag: inner-join
Inner join with Count, multiple tables
I’m having an issue with MS Access to get correct counts on multiple tables. I’m not at all an expert in SQL requests. I have a set of tables which is structured as follow : Table1 : UID, Name, other informations Table2 : UID, FK_UID_Table1, Name, other informations Table3 : UID, FK_UID_Table2, Name, other informations Table4 : UID, FK_UID_Table3, Name,
How can I determined which users with a specific RoleID that’s not been active within a time interval? And which home department do they belong to?
This script below will tell me how many non active users with a certain RoleID there’s been within a timeframe. When I run the script below. It will also tell me which home department each user …
mySQL Self Join – inner join or join
quick clarification. When joining contents from the same table, must I always declare join type as INNER? For example, (on the table shown in this screenshot) When I tried to remove the keyword INNER, it was wrong. Is it because JOIN does not exist in SQL? Thanks and cheers. Answer You do want a self (inner) join here, but you
Self Joining between 2 same tables
For instance I have a table called employees where it consists of “Employee ID”, “First Name”, “Last Name”, “Manager ID”. To count the subordinate of each manager, I tried to self-joining between the 2 tables. Am I right? Also, if I want to join with other tables after self-joining, is the joining statement right? Combining the first and last name:
Multiple inner joins in pymysql
I am attempting to select multiple columns from three tables in pymysql, and inner join them. I don’t understand what is going wrong when I add the second inner join. I feel like it’s a simple syntax …
SQL Retrieve info from two tables
I am really lost with sql.. i tried to read everything but no luck. I have two tables and need to retrieve data from them: First Table – Workers | Second Table – Stores Select workers first name that belong to more than one store? Select all workers first name that are in the shoe store? Hope you can help
APEX get Multiple entries FK
,i dont know what so search for my problem. I think its very simple, but i dont know about that 🙂 I have a Table where i listed all my “Groups/Teams” And then i have a Users Table where i list all the People: I use APEX 18.1 and have a Form with a List of Values, there i can
Aggregate Function Error With Basic Query
My database is based on a cinema, I am trying to make a query which displays the number of tickets purchased for each movie screening. The tables involved in this query are Bookings, Screenings and Movies. Here is the Bookings table: The Screenings table: And the Movies table: I have so far managed to get the query to the point
UPDATE with INNER JOIN on SQL Server
I have 2 tables Users and Orders. Primary key of Users is UserId, which I have defined as foreign key in the Orders table. I have added a new column of UserName to Orders. I want to import UserName …