I’am new to hive and i want to implement the following query It works fine untill the last left join. Nested queries are obviously not authorized in hive. How can i approach this. Answer Use sub-query instead of joined table: Or better move last join condition inside the WHERE clause in the subquery:
Tag: left-join
mysql: Select all rows and compare with other table
I have two tables and need to get all rows from the first one and then check which values from the second table match the first table. My goal is to get all so called ‘achievements’ and then check which one the user has reached. achievements achievement_user My desired result for a query where I check the results for userID
How to make left join with `where second_table.key!=’value’` if there is not record in secord_table at all
There are two tables with one-to-one relationship, and it’s a legal that the second table can have less rows than the first. Here is a sql code with inserted data: I need to make a query for all data + data_extra tables where extra!=’e1′ Here is my try: The problem with this query, that it doesn’t return data.name=’n3′ row, which
Simple Postgres query returning no result
I have two tables: and I have indexes on id in both tables, and an index on website_id and product_id on the adjustments table. This query returns data but it takes some 5 seconds with some 1k products and a couple hundred in adjustments: This other query however returns no results when there’s nothing in the adjustments table: Was it
Postgresql – How to identify latest record of a combination of 2 columns (Example inside)
In PostgreSQL, if i have this kind of record : |——————|———————|——————| | corona_country | corona_patient | corona_suspected | |——————|———…
Using LINQ to fill a boolean with true or false based off of condition
I am performing a linq query to grab some data from the DB. Here is my linq: The main 2 tables I am concerned with here are JobRequest and JobRequestParameters… JobRequest table has 13 records (but not all jobs have parameters). JobRequestParameters table only has 4 records. They are joined on by PkJobRequestId. JobRequestParameters has a pkJobParameterId IF and only
left join and return only the latest record from right table using LARAVEL 6.5.0
Table 1 ———- NameID Name —————— 1 A 2 B 3 C —————– Table 2 ——————– ID NameID Order ——————– 1 1 …
left join in hive
would anyone kindly answer the question below? Is left join outer join or inner join in hive? (Do we need to type left “outer” join in order to do the outer join? or simply left join works as outer?) Answer Just like in most, if not all, databases, the outer word is optional in left [outer] join, while both syntaxs
Select query to show missing values per day as 0
I have one table with product id’s and another with daily data for these products. When there is no data I want to return 0 instead of no value at all. I tried using a left join but this doesn’t give the resultset I want since the table I can join on has product id’s only, not per day. I
How to count missing rows in left table after right join?
There are two tables: Table education_data (list of countries with values by year per measured indicator). create table education_data (country_id int, indicator_id int, year date, value float ); …