The execution order in SQL is the following: FROM --> WHERE --> GROUP BY --> HAVING --> SELECT --> ORDER BY --> LIMIT In my query I am using a CASE WHEN statement and an aggregate function in the SELECT…
I have a set of sql statements, CREATE TABLE PRICING( CodeVillage INT, TypeCabin INT, CodeSeason CHAR(2), WeekPrice INT, PRIMARY KEY(CodeVillage, TypeCabin, CodeSeason) ); CREATE TABLE SEASON( CodeSeason CHAR(2) PRIMARY KEY, NameSeason VARCHAR(20), CONSTRAINT Fk_Pricing_CodeSeason Foreign KEY (CodeSeason) REFERENCES PRICING(CodeSeason) );…
I have a table CREATE TABLE consumer_occurrence_restoration_times ( consumer_id INT, start_time TIMESTAMP, end_time TIMESTAMP ); where the data is INSERT INTO consumer_occurrence_restoration_times (consumer_id, start_time, end_time) VALUES (1, '2023-09-24 20:00:00', '2023-09-25 12:00:00'), (2, '2023-09-24 21:00:00', '2023-09-25 13:00:00'), (1, '2023-09-26 20:00:00', '2023-09-28…
I am trying to get a column which specify the points by comparing the value from original table to min and max value from another table. I have a main table, which consists of few columns of values and the…
I am trying to improve the performance of a query. I was thinking of using AsNoTracking(), but I am not sure if the location where it is put will make a difference i.e.(before Select() or after, before Include() or after,…
I have two tables A and B each with unique constraints for appid and name columns to ensure name is unique for each appid. However, now I also need to ensure that name value is unique across the both tables.…
I am using MySQL and facing a question. I want to count the consecutive occurrence of type based on each ID and select out only the IDs with more than 3 times of error-type. Additionaly, based on the above result,…
I am trying to get a table of an average for a column, across multiple rows (if that makes sense). For example, in the table below, I need to group the postcodes (as there can be more than 1 suburb…
I am new to joining two tables in PostgreSQL. Table 1: O_REMEDY_PEOPLEGROUP manager_name manager_hierarchy farhanpat raju jacob watson soumyvant neha william amitk piyush shawn brian david warner Table 2: Org_details org_name vp_details org1 jacob org2 piyush org3 neha We want…
I am performing group by to get the count of every individual value along with the total count. Data, It is very easy to get the count of individual columns using below queries, select name, colour, count(1) from table group…