join not returning all elements in left table C# lambda?

I have 2 tables, the left table has data like this: I do a left join with another table with the following expres...

Count with IF condition in MySQL query?

I have two tables, one is for news and the other one is for comments and I want to get the count of the comments who...

LINQ: combining join and group by?

I have a query that combines a join and a group, but I have a problem. The query is like: var result = from p in P...

Joining 3 tables with mySQL with 1 query?

This has been asked and answered in different instances but all that I've seen doesn't quite work for my problem. P...

SQL - remove duplicates from left join?

I'm creating a joined view of two tables, but am getting unwanted duplicates from table2. For example: table1 has 90...

Can we use join for two different database tables??

Can we use the join operation for two tables from different databases? If yes, how do I do it? Both databases are o...

How to get multiple counts with one SQL query??

I am wondering how to write this query. I know this actual syntax is bogus, but it will help you understand what I ...

SQL join on multiple columns in same tables?

I have 2 subqueries, but I'm having trouble joining columns together from the same tables. I tried: SELECT * FROM ...

What is the difference between JOIN and UNION??

What is the difference between JOIN and UNION? Can I have an example? ...

LINQ Join with Multiple Conditions in On Clause?

I'm trying to implement a query in LINQ that uses a left outer join with multiple conditions in the ON clause. I'll...

Why do multiple-table joins produce duplicate rows??

Let's say I have three tables A, B, and C. Each has two columns: a primary key and some other piece of data. They ea...

How to perform Join between multiple tables in LINQ lambda?

I am trying to perform a Join between multiple tables in LINQ. I have the following classes: Product {Id, ProdName,...

How to join two RDDs in spark with python??

Suppose rdd1 = ( (a, 1), (a, 2), (b, 1) ), rdd2 = ( (a, ?), (a, *), (c, .) ). Want to generate ( (a, (1, ?)), ...

Join/Where with LINQ and Lambda?

I'm having trouble with a query written in LINQ and Lambda. So far, I'm getting a lot of errors here's my code: int...

Hive: work around for non equi left join?

Hive does not support non equi joins: The common work around is to move the join condition to the where clause, whic...