I have a table like this CREATE TABLE proc_code ( id INTEGER, c_date DATE, code VARCHAR(255) ); INSERT INTO proc_code (id, c_date, code) VALUES (101, ‘2017-12-21’, ‘3027f’), (101, ‘…
Tag: join
Is there any issue to run multi join in access db
I am trying to run this sql statement in access and found Syntax error Select * from TableC C INNER JOIN TableE E on E.TKey = C.TKey INNER JOIN TableP P on P.TKey = E.TKey AND E.employee_id = ‘123’…
SQL – Join two queries and also set a default value when there is no match
Is it possible to merge the following two queries and also have a default value offline for status when it doesn’t have entry to match? Example: SELECT Objects, COUNT(*) AS Objects_count FROM …
Laravel Eloquent – Get data from 3 tables with consecutive foreign keys
I’m looking for a way to join 3 Data Tables. Laravel Query; How to fetch data from table ‘c’ by applying a query on table ‘a’? i’m new to Laravel. Answer Basically, it is not as much related to laravel it needs knowledge of the database. You can join 3 tables like this.
Data Joining of two Tables MS Access SQL
I have two tables named – 1) Students 2) Classes. ClassID is Primary Key of Classes table and Foreign Key of Students Table. I want to access one row from the Students table having specfic RollNo (This RollNo is given by user input) and all rows from Classes Table. Students Table is given as:- RollNo is…
SQL Server INNER JOIN and GROUP BY
In sql server I’m trying to group by each sales people some infos as follow: I have 2 tables: Positions and Clients In Positions table, I have the following columns: Client_Id, Balance, Acquisition_Cost and in the Clients table I use the following columns: Client_Id and Sales_person. I want to group by …
Combining MySQL Queries to get total amount
I’m trying to combine the following 2 queries. table_A stores a list of available appointments and number_open is how many open slots there are for a specific appointment, in this case 2020-06-30 AM which has 5 open. table_B contains any dates waiting to be accepted and has a different record for each d…
SQL query on two tables using two column as keys
I started studying SQL (not MySQL as it seems to be different in some parts) and I encountered this problem that i could not figure out how to solve I have the following tables: CREATE TABLE …
Update table value from a second table by joining a third table
I have 3 tables, TableA, TableB and TableC I want to migrate the data from TableA column DateA to TableB column DateB, only if the date field is null in table B (I don’t want to overwrite any …
Compare two values in a row
select event_slots.id as event_slot_id, u.first_name, u.id AS user_id, sum(case when next_round = 1 then 1 else 0 end) AS yes, sum(case when next_round = 2 then 1 else 0 end) AS no from event_slots …